frost
Temperatures will approach the freezing mark overnight. Frost is expected in some areas, particularly outside the large urban areas.
###
Frost advisories are issued when temperatures are expected to reach the freezing mark during the growing season, leading to potential damage and destruction to plants and crops.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to QCstorm@ec.gc.ca or post reports on X using #QCStorm.
From: Oct 17, 2025 03:35
Until: Oct 17, 2025 13:59
Frost Advisory
* WHAT...Temperatures as low as 32 will result in frost formation.
* WHERE...Portions of northern New York and central, northwest, and
southern Vermont.
* WHEN...From midnight tonight to 8 AM EDT Thursday.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
From: Oct 01, 2025 05:47
Until: Oct 01, 2025 21:15
Special Weather Statement
Fine fuels remain very dry across the Champlain Valley according
to the Vermont Department of Forest, Parks and Recreation. This,
combined with low relative humidity values down to 30 percent and
gusty northerly winds up to 25 mph may have an impact on fire
weather conditions Wednesday. If any fires were to start, the
weather and fuel conditions could cause fires to quickly spread
and be difficult to contain. There is a debris burning ban in
effect for Vermont.
For more information about the current fire danger rating, any
burn restrictions, and wildfire prevention and education, please
visit your state forestry or environmental protection website.
From: Sep 30, 2025 20:28
Until: Oct 01, 2025 10:00
Frost Advisory
* WHAT...Temperatures in the low to mid 30s will result in frost
formation.
* WHERE...Portions of northern New York and central, northwest, and
southern Vermont.
* WHEN...From midnight tonight to 8 AM EDT Sunday.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
From: Sep 20, 2025 17:39
Until: Sep 21, 2025 12:00
Freeze Warning
* WHAT...Sub-freezing temperatures in the mid to upper 20s expected.
* WHERE...In New York, Southern Franklin and Western Clinton
Counties. In Vermont, Washington, Caledonia, Essex, Orleans, and
Lamoille Counties.
* WHEN...Until 8 AM EDT this morning.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.
* ADDITIONAL DETAILS...The coldest temperatures will be around
sunrise this morning.
From: Sep 21, 2025 04:52
Until: Sep 21, 2025 12:00
Freeze Warning
* WHAT...Sub-freezing temperatures in the mid to upper 20s expected.
* WHERE...Southern Franklin and western Clinton Counties in New York
and Washington, Caledonia, Essex, Orleans, and Lamoille Counties
in Vermont.
* WHEN...From midnight tonight to 8 AM EDT Sunday.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.
From: Sep 20, 2025 17:39
Until: Sep 21, 2025 12:00
Frost Advisory
* WHAT...Temperatures in the low to mid 30s will result in frost
formation.
* WHERE...Portions of northern New York and central, northwest, and
southern Vermont.
* WHEN...Until 8 AM EDT this morning.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
* ADDITIONAL DETAILS...The coldest temperatures will be around
sunrise this morning.
From: Sep 21, 2025 04:52
Until: Sep 21, 2025 12:00
Frost Advisory
* WHAT...Temperatures in the low to mid 30s will result in frost
formation.
* WHERE...In New York, Eastern Clinton and Eastern Essex Counties.
In Vermont, Eastern Addison, Western Addison, Western Chittenden,
Eastern Rutland, Eastern Windsor, Western Rutland, and Western
Windsor Counties.
* WHEN...From midnight tonight to 8 AM EDT Sunday.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
From: Sep 20, 2025 05:29
Until: Sep 20, 2025 19:00
Frost Advisory
* WHAT...Temperatures in the low to mid 30s will result in frost
formation.
* WHERE...In New York, Northern Franklin, Northern St. Lawrence,
Southeastern St. Lawrence, Southwestern St. Lawrence, and Western
Essex Counties. In Vermont, Orange, Eastern Chittenden, Eastern
Franklin, and Western Franklin Counties.
* WHEN...For the first Frost Advisory, until 8 AM EDT this morning.
For the second Frost Advisory, from midnight tonight to 8 AM EDT
Sunday.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
From: Sep 20, 2025 05:29
Until: Sep 20, 2025 19:00
Freeze Warning
* WHAT...For the first Freeze Warning, sub-freezing temperatures
between 25 and 30 degrees expected. For the second Freeze Warning,
sub-freezing temperatures between 23 and 30 degrees expected.
* WHERE...In New York, Southern Franklin and Western Clinton
Counties. In Vermont, Essex County.
* WHEN...For the first Freeze Warning, until 8 AM EDT this morning.
For the second Freeze Warning, from midnight tonight to 8 AM EDT
Sunday.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.
From: Sep 20, 2025 05:29
Until: Sep 20, 2025 19:00
Freeze Warning
* WHAT...Sub-freezing temperatures between 25 and 30 expected.
* WHERE...In New York, Southern Franklin and Western Clinton
Counties. In Vermont, Essex County.
* WHEN...From 2 AM to 8 AM EDT Saturday.
* IMPACTS...Freeze conditions could kill crops, other sensitive
vegetation and possibly damage unprotected outdoor plumbing.
* ADDITIONAL DETAILS...The coldest temperatures will occur near
sunrise on Saturday morning.
From: Sep 19, 2025 04:31
Until: Sep 19, 2025 19:15
Special Weather Statement
Fuels remain very dry across northern New York and Vermont
according to the Vermont Department of Forests, Parks and
Recreation and the New York State Department of Environmental
Conservation. This, combined with low relative humidity values of
around 30 percent and northerly winds of 10 to 20 mph with gusts
up to 25 mph may have an impact on fire weather conditions
tomorrow. If any fires were to start, the weather and fuel
conditions could cause fires to quickly get out of control and be
difficult to contain.
For more information about the current fire danger rating, any burn
restrictions, and wildfire prevention and education, please visit
your state forestry or environmental protection website.
From: Sep 18, 2025 18:15
Until: Sep 19, 2025 10:00
Freeze Watch
* WHAT...Sub-freezing temperatures as low as 25 possible.
* WHERE...In New York, Southern Franklin and Western Clinton
Counties. In Vermont, Essex County.
* WHEN...From late Friday night through Saturday morning.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.
From: Sep 18, 2025 18:06
Until: Sep 19, 2025 08:15
Frost Advisory
* WHAT...Temperatures in the low to mid 30s will result in frost
formation.
* WHERE...Essex County in Vermont and southeastern St. Lawrence,
southern Franklin, western Clinton, and western Essex Counties in
New York.
* WHEN...From 2 AM to 8 AM EDT Tuesday.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
From: Sep 08, 2025 17:34
Until: Sep 09, 2025 12:00
Frost Advisory
* WHAT...Temperatures in the low 30s will result in patchy frost
formation.
* WHERE...Essex County Vermont and the Adirondacks.
* WHEN...From 2 AM to 8 AM EDT Tuesday.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
From: Sep 08, 2025 05:03
Until: Sep 08, 2025 20:15
Special Weather Statement
Fine fuels remain very dry across the area according to the
Vermont Department of Forests, Parks and Recreation and the New
York State Department of Environmental Conservation. Portions of
the region are also in moderate drought. Southerly winds will
quickly increase to 10 to 20 MPH today, with gusts up to 25 MPH.
Localized gusts up to 35 MPH will occur in the Champlain Valley
and far northern Adirondacks. These winds, combined with low
relative humidity values between 25% and 35%, will create near
critical fire weather conditions. Winds will be strongest between
noon and 8 PM, coinciding with the timing of the minimum relative
humidity values. If any fires were to start the weather and fuel
conditions could cause them to quickly get out of control and be
difficult to contain. Fire weather conditions will quickly improve
as a wetting rain arrives in the late afternoon and evening.
For more information about the current fire danger rating, any burn
restrictions, and wildfire prevention and education, please visit
your state forestry or environmental protection website.
From: Sep 04, 2025 06:44
Until: Sep 04, 2025 23:00
Heat Advisory
* WHAT...Heat index values in the mid 90s after multiple days with
values above 90.
* WHERE...In New York, Eastern Clinton, Northern Franklin, Northern
St. Lawrence, and Southwestern St. Lawrence Counties. In Vermont,
Western Addison, Eastern Chittenden, Eastern Franklin, Grand Isle,
Western Chittenden, and Western Franklin Counties.
* WHEN...From 8 AM Tuesday to 8 AM EDT Wednesday.
* IMPACTS...An extended duration of hot temperatures may cause heat
illnesses.
* ADDITIONAL DETAILS...There will be little relief Tuesday night
with low temperatures only cooling to around 70 degrees.
Structures will not efficiently cool off in these conditions. Heat
impacts are cumulative, and those without access to adequate
cooling will be at the most risk to developing heat related
illnesses.
From: Aug 10, 2025 18:48
Until: Aug 11, 2025 20:00
chaleur
Chaleur et humidité pour les prochains jours
Quoi :
Des températures maximales oscillant entre 30 et 34 degrés Celsius, combinées à un taux d’humidité élevé, généreront des valeurs d’humidex autour de 40. Par ailleurs, les nuits seront chaudes, avec des températures minimales de 20 degrés Celsius ou plus, offrant ainsi peu de répit.
Quand :
D'aujourd'hui à mardi
###
Un avertissement de chaleur est émis lorsque des conditions très chaudes ou humides devraient présenter un risque élevé de malaises liés à la chaleur, comme les coups de chaleur et l'épuisement dû à la chaleur.
Pour obtenir plus de renseignments : https://www.canada.ca/fr/sante-canada/services/changements-climatiques-sante/chaleur-accablante/comment-se-proteger.html https://www.canada.ca/fr/sante-canada/services/changements-climatiques-sante/chaleur-accablante/personnes-a-risque.html
Veuillez continuer à surveiller les alertes et les prévisions émises par Environnement Canada. Pour signaler du temps violent, envoyez un courriel à meteoQC@ec.gc.ca ou publiez un message sur X en utilisant #meteoqc.
From: Aug 09, 2025 07:27
Until: Aug 09, 2025 23:27
météo
Chaleur et humidité en vue
Une période de temps chaud et humide est attendue au courant des prochains jours. De dimanche à mardi, le mercure dépassera la barre des 30 degrés et les valeurs d'humidex s'approcheront de 40. Les nuits seront chaudes et offriront peu de répit.
Réorganisez ou planifiez vos activités se tenant à l’extérieur pendant les périodes les plus fraîches de la journée.
###
Veuillez continuer à surveiller les alertes et les prévisions émises par Environnement Canada. Pour signaler du temps violent, envoyez un courriel à meteoQC@ec.gc.ca ou publiez un message sur X en utilisant #meteoqc.
From: Aug 09, 2025 02:39
Until: Aug 09, 2025 18:39
météo
###
From: Aug 09, 2025 07:53
Until: Aug 09, 2025 08:53
Air Quality Alert
The Vermont Agency of Natural Resources has issued an Air Quality
Health Advisory for Code Orange or Unhealthy for Sensitive Groups
category due to Fine Particulates for Caledonia, Eastern Chittenden,
Eastern Franklin, Essex, Grand Isle, Lamoille, Orleans, Washington,
Western Chittenden, and Western Franklin until midnight EDT tonight.
The air quality index, or AQI, is expected to approach or exceed the
Code Orange or Unhealthy for Sensitive Groups category due to Fine
Particulates.
When pollution levels are in the Unhealthy for Sensitive Groups
category, the Vermont Department of Health recommends that these
individuals consider limiting strenuous outdoor physical activity to
reduce the risk of adverse health effects.
People who may be especially sensitive to the effects of elevated
levels of pollutants include the very young, older adults, and those
with preexisting respiratory problems such as asthma or heart
disease and those working outside.
Those with symptoms should consider consulting their personal
physician.
People with asthma should follow their asthma action plans and keep
quick relief medicine handy.
If you have heart disease: symptoms such as palpitations, shortness
of breath, or unusual fatigue may indicate a serious problem. If you
have any of these, contact your healthcare provider.
An Air Quality Action Day means that particulate concentrations
within the region may approach or exceed unhealthy standards.
For additional information, please visit the Vermont Agency of
Natural Resources web site at
https://dec.vermont.gov/air-quality/local-air-quality-forecasts.
From: Aug 04, 2025 19:03
Until: Aug 06, 2025 04:00
Air Quality Alert
The New York State Department of Environmental Conservation at
Albany NY has issued an Air Quality Health Advisory for fine
particulate for Eastern Clinton, Eastern Essex, Northern Franklin,
Northern St. Lawrence, Southeastern St. Lawrence, Southern Franklin,
Southwestern St. Lawrence, Western Clinton, and Western Essex
Counties in New York until midnight EDT Tuesday night.
Air quality levels in outdoor air are predicted to be greater than
an air quality index value of Unhealthy for Sensitive Groups
category for fine particulate. The air quality index, or AQI, was
created as an easy way to correlate levels of different pollutants
to one scale. The higher the AQI value, the greater the health
concern.
When pollution levels are elevated, the New York State Department of
Health recommends that individuals consider limiting strenuous
outdoor physical activity to reduce the risk of adverse health
effects. People who may be especially sensitive to the effects of
elevated levels of pollutants include the very young and those with
pre existing respiratory problems such as asthma or heart disease.
Those with symptoms should consider consulting their personal
physician.
For additional information, please visit the New York State
Department of Environmental Conservation website at,
https://on.ny.gov/nyaqi, or call the Air Quality Hotline at 1-800-
535-1345.
From: Aug 04, 2025 19:33
Until: Aug 06, 2025 04:00
Air Quality Alert
The Vermont Agency of Natural Resources has issued an Air Quality
Alert for fine particulate pollution from wildfire smoke for
Caledonia, Eastern Addison, Eastern Chittenden, Eastern Franklin,
Eastern Rutland, Eastern Windsor, Essex, Grand Isle, Lamoille,
Orange, Orleans, Washington, Western Addison, Western Chittenden,
Western Franklin, Western Rutland, and Western Windsor Counties in
Vermont until midnight EDT Tuesday night.
The Air Quality Index, or AQI, is expected to approach or exceed the
Code Orange or Unhealthy for Sensitive Groups category.
When pollution levels are in the Unhealthy for Sensitive Groups
category, the Vermont Department of Health recommends that these
individuals consider limiting strenuous outdoor physical activity to
reduce the risk of adverse health effects.
People who may be especially sensitive to the effects of elevated
levels of pollutants include the very young, older adults, and those
with preexisting respiratory problems such as asthma or heart
disease and those working outside.
Those with symptoms should consider consulting their personal
physician.
People with asthma should follow their asthma action plans and keep
quick relief medicine handy.
If you have heart disease: symptoms such as palpitations, shortness
of breath, or unusual fatigue may indicate a serious problem. If you
have any of these, contact your healthcare provider.
An Air Quality Action Day means that particulate concentrations
within the region may approach or exceed unhealthy standards.
For additional information, please visit the Vermont Agency of
Natural Resources web site at https://dec.vermont.gov/air-
quality/local-air- quality-forecasts.
From: Aug 04, 2025 19:33
Until: Aug 06, 2025 04:00
Air Quality Alert
The Vermont Agency of Natural Resources has issued an Air Quality
Health Advisory for Code Red Category (Unhealthy for Everyone) due to
Fine Particulates for Caledonia, Eastern Chittenden, Eastern
Franklin, Essex, Grand Isle, Lamoille, Orleans, Washington, Western
Chittenden, and Western Franklin from midnight tonight to midnight
EDT Sunday night.
The air quality index, or AQI, is expected to approach or exceed the
Code Red or Unhealthy for Everyone or greater category due to Fine
Particulates.
When pollution levels are in the Code Red Category (Unhealthy for
Everyone), the Vermont Department of Health recommends that these
individuals consider limiting strenuous outdoor physical activity to
reduce the risk of adverse health effects.
People who may be especially sensitive to the effects of elevated
levels of pollutants include the very young, older adults, and those
with preexisting respiratory problems such as asthma or heart
disease and those working outside.
Those with symptoms should consider consulting their personal
physician.
People with asthma should follow their asthma action plans and keep
quick relief medicine handy.
If you have heart disease: symptoms such as palpitations, shortness
of breath, or unusual fatigue may indicate a serious problem. If you
have any of these, contact your healthcare provider.
An Air Quality Action Day means that particulate concentrations
within the region may approach or exceed unhealthy standards.
For additional information, please visit the Vermont Agency of
Natural Resources web site at
https://dec.vermont.gov/air-quality/local-air-quality-forecasts.
From: Aug 03, 2025 10:43
Until: Aug 04, 2025 10:45
orages
Cet après-midi et ce soir, les conditions sont propices à la formation d'orages violents pouvant produire des rafales fortes, de la grêle de grosse taille et de la pluie forte.
Les activités nautiques pourraient s’avérer dangereuses en raison des rafales violentes et soudaines sur les plans d’eau.
Les fortes rafales peuvent endommager les arbres ou les bâtiments.
###
La grosse grêle peut causer d'importants dégâts et des blessures graves.
Les veilles d'orages violents sont émises lorsque les conditions sont propices à la formation d'orages pouvant produire de la grêle, de la pluie ou des vents destructeurs.
Veuillez continuer à surveiller les alertes et les prévisions émises par Environnement Canada. Pour signaler du temps violent, envoyez un courriel à meteoQC@ec.gc.ca ou publiez un message sur X en utilisant #meteoqc.
From: Aug 03, 2025 12:57
Until: Aug 04, 2025 04:57
Air Quality Alert
The Vermont Agency of Natural Resources has issued an Air Quality
Health Advisory for Code Red or Unhealthy for Everyone or greater
category due to Fine Particulates for Caledonia, Eastern Chittenden,
Eastern Franklin, Essex, Grand Isle, Lamoille, Orleans, Washington,
Western Chittenden, and Western Franklin from midnight tonight to
midnight EDT Sunday night.
The air quality index, or AQI, is expected to approach or exceed the
Code Red or Unhealthy for Everyone or greater category due to Fine
Particulates.
When pollution levels are in the Unhealthy for Everyone or greater
category, the Vermont Department of Health recommends that these
individuals consider limiting strenuous outdoor physical activity to
reduce the risk of adverse health effects.
People who may be especially sensitive to the effects of elevated
levels of pollutants include the very young, older adults, and those
with preexisting respiratory problems such as asthma or heart
disease and those working outside.
Those with symptoms should consider consulting their personal
physician.
People with asthma should follow their asthma action plans and keep
quick relief medicine handy.
If you have heart disease: symptoms such as palpitations, shortness
of breath, or unusual fatigue may indicate a serious problem. If you
have any of these, contact your healthcare provider.
An Air Quality Action Day means that particulate concentrations
within the region may approach or exceed unhealthy standards.
For additional information, please visit the Vermont Agency of
Natural Resources web site at
https://dec.vermont.gov/air-quality/local-air-quality-forecasts.
From: Aug 02, 2025 20:48
Until: Aug 04, 2025 04:00
qualité de l'air
La fumée provenant des feux de forêt des Prairies cause une mauvaise qualité de l'air et une visibilité réduite. Toutefois, les conditions devraient s'améliorer graduellement ce soir ou cette nuit.
Les personnes les plus à risque quant aux effets de la pollution atmosphérique sur la santé comme les personnes de 65 ans et plus, les personnes enceintes, les nourrissons et les jeunes enfants, les personnes qui ont déjà des problèmes de santé chroniques ou une maladie et les personnes qui travaillent en plein air devraient éviter les activités exténuantes en plein air et demandez une assistance médicale en cas de symptômes.
###
Pendant les périodes de fumée dense, chaque personne s'expose à des risques, quels que soient son âge ou son état de santé.
Limitez le temps que vous passez à l'extérieur. Réorganisez ou annulez les sports, activités ou événements à l'extérieur.
Vous pourriez ressentir les symptômes légers et courants comme une irritation des yeux, du nez et de la gorge, ou plus graves, mais moins fréquents, comme des douleurs à la poitrine ou une toux sévère. Si vous pensez avoir une urgence médicale, demandez une assistance médicale immédiate.
Consultez le site http://www.coteairsante.ca pour en savoir plus sur comment réduire les risques pour la santé et comment contribuer à réduire la pollution, de même que pour connaître les valeurs actuelles et prévues de la CAS.
Veuillez continuer à surveiller les alertes et les prévisions émises par Environnement Canada.
From: Jul 26, 2025 19:57
Until: Jul 27, 2025 11:57
qualité de l'air
###
Pendant les périodes de fumée dense, chaque personne s'expose à des risques, quels que soient son âge ou son état de santé.
Limitez le temps que vous passez à l'extérieur. Réorganisez ou annulez les sports, activités ou événements à l'extérieur.
Vous pourriez ressentir les symptômes légers et courants comme une irritation des yeux, du nez et de la gorge, ou plus graves, mais moins fréquents, comme des douleurs à la poitrine ou une toux sévère. Si vous pensez avoir une urgence médicale, demandez une assistance médicale immédiate.
Consultez le site http://www.coteairsante.ca pour en savoir plus sur comment réduire les risques pour la santé et comment contribuer à réduire la pollution, de même que pour connaître les valeurs actuelles et prévues de la CAS.
Veuillez continuer à surveiller les alertes et les prévisions émises par Environnement Canada.
From: Jul 26, 2025 02:53
Until: Jul 27, 2025 11:57
qualité de l'air
La fumée provenant des feux de forêt des Prairies cause une mauvaise qualité de l'air et une visibilité réduite. La qualité de l'air pourrait demeurer mauvaise jusqu'à demain.
Les personnes les plus à risque quant aux effets de la pollution atmosphérique sur la santé comme les personnes de 65 ans et plus, les personnes enceintes, les nourrissons et les jeunes enfants, les personnes qui ont déjà des problèmes de santé chroniques ou une maladie et les personnes qui travaillent en plein air devraient éviter les activités exténuantes en plein air et demandez une assistance médicale en cas de symptômes.
###
Pendant les périodes de fumée dense, chaque personne s'expose à des risques, quels que soient son âge ou son état de santé.
Limitez le temps que vous passez à l'extérieur. Réorganisez ou annulez les sports, activités ou événements à l'extérieur.
Vous pourriez ressentir les symptômes légers et courants comme une irritation des yeux, du nez et de la gorge, ou plus graves, mais moins fréquents, comme des douleurs à la poitrine ou une toux sévère. Si vous pensez avoir une urgence médicale, demandez une assistance médicale immédiate.
Consultez le site http://www.coteairsante.ca pour en savoir plus sur comment réduire les risques pour la santé et comment contribuer à réduire la pollution, de même que pour connaître les valeurs actuelles et prévues de la CAS.
Veuillez continuer à surveiller les alertes et les prévisions émises par Environnement Canada.
From: Jul 26, 2025 02:53
Until: Jul 26, 2025 17:52
air quality
Smoke from the Prairies wildfires is causing poor air quality and reduced visibilities.
The air quality could remain poor until tomorrow.
###
As smoke levels increase, health risks increase. Limit time outdoors. Consider reducing or rescheduling outdoor sports, activities and events.
You may experience mild and common symptoms such as eye, nose and throat irritation, headaches or a mild cough. More serious but less common symptoms include wheezing, chest pains or severe cough. If you think you are having a medical emergency, seek immediate medical assistance.
People more likely to be impacted by outdoor air pollution, including people aged 65 and older, pregnant people, infants and young children, people with an existing illness or chronic health condition, and people who work outdoors, should reduce or reschedule strenuous activities outdoors and seek medical attention if experiencing symptoms.
Please continue to monitor alerts and forecasts issued by Environment Canada.
From: Jul 26, 2025 00:44
Until: Jul 26, 2025 16:45
squall
Until the end of the evening or shortly after midnight, conditions are favourable for the formation of squalls accompanied by gusts that can exceed 45 knots and numerous lightning strikes.
###
Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.
From: Jul 24, 2025 23:31
Until: Jul 25, 2025 07:59
thunderstorm
Tonight and early overnight, conditions will be favourable for the development of severe thunderstorms capable of producing strong wind gusts, large hail and heavy rain.
Some of these thunderstorms could produce a tornado.
Nautical activities may be hazardous due to sudden, severe wind gusts over bodies of water.
Strong gusts can damage trees or buildings.
###
Heavy rain can cause flash flooding and significant reductions to visibility.
Large hail can cause significant damage and injury.
Severe thunderstorm watches are issued when conditions are favourable for the development of thunderstorms capable of producing damaging hail, wind or rain.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to QCstorm@ec.gc.ca or post reports on X using #QCStorm.
From: Jul 24, 2025 23:10
Until: Jul 25, 2025 07:59
heat
Hot and humid weather
What:
The combination of high temperatures exceeding 30 degrees Celsius and high humidity levels will give humidex values near 40 during the day. The overnight period will be uncomfortable with lows above 20 degrees Celsius.
When:
Until Friday.
Where:
Greater Montreal, Montérégie, Lanaudière
###
Heat warnings are issued when very high temperature or humidity conditions are expected to pose an elevated risk of heat illnesses, such as heat stroke or heat exhaustion.
For more information: https://www.canada.ca/en/health-canada/services/climate-change-health/extreme-heat/how-protect-yourself.html https://www.canada.ca/en/health-canada/services/climate-change-health/extreme-heat/who-is-at-risk.html
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to QCstorm@ec.gc.ca or post reports on X using #QCStorm.
From: Jul 24, 2025 14:36
Until: Jul 25, 2025 06:36
chaleur
Chaleur attendue mercredi
Quoi :
Des températures maximales variant entre 31 et 33 degrés Celsius, combinées à une humidité élevée, entraîneront des valeurs d'humidex approchant les 40.
Quand :
Mercredi
Où :
La région de Québec et la Mauricie
###
Un avertissement de chaleur est émis lorsque des conditions très chaudes ou humides devraient présenter un risque élevé de malaises liés à la chaleur, comme les coups de chaleur et l'épuisement dû à la chaleur.
Pour obtenir plus de renseignments : https://www.canada.ca/fr/sante-canada/services/changements-climatiques-sante/chaleur-accablante/comment-se-proteger.html https://www.canada.ca/fr/sante-canada/services/changements-climatiques-sante/chaleur-accablante/personnes-a-risque.html
Veuillez continuer à surveiller les alertes et les prévisions émises par Environnement Canada. Pour signaler du temps violent, envoyez un courriel à meteoQC@ec.gc.ca ou publiez un message sur X en utilisant #meteoqc.
From: Jul 16, 2025 08:51
Until: Jul 17, 2025 00:51
chaleur
###
Un avertissement de chaleur est émis lorsque des conditions très chaudes ou humides devraient présenter un risque élevé de malaises liés à la chaleur, comme les coups de chaleur et l'épuisement dû à la chaleur.
Pour obtenir plus de renseignments : https://www.canada.ca/fr/sante-canada/services/changements-climatiques-sante/chaleur-accablante/comment-se-proteger.html https://www.canada.ca/fr/sante-canada/services/changements-climatiques-sante/chaleur-accablante/personnes-a-risque.html
Veuillez continuer à surveiller les alertes et les prévisions émises par Environnement Canada. Pour signaler du temps violent, envoyez un courriel à meteoQC@ec.gc.ca ou publiez un message sur X en utilisant #meteoqc.
From: Jul 16, 2025 03:12
Until: Jul 17, 2025 00:51
chaleur
Chaleur attendue mercredi
Quoi :
Des températures maximales variant entre 31 et 33 degrés Celsius, combinées à une humidité élevée, entraîneront des valeurs d'humidex approchant les 40. Par ailleurs, les nuits seront chaudes, avec des températures minimales oscillant entre 17 et 20 degrés Celsius.
Quand :
mercredi
Où :
L'Estrie, la région de Québec et la Mauricie
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Un avertissement de chaleur est émis lorsque des conditions très chaudes ou humides devraient présenter un risque élevé de malaises liés à la chaleur, comme les coups de chaleur et l'épuisement dû à la chaleur.
Pour obtenir plus de renseignments : https://www.canada.ca/fr/sante-canada/services/changements-climatiques-sante/chaleur-accablante/comment-se-proteger.html https://www.canada.ca/fr/sante-canada/services/changements-climatiques-sante/chaleur-accablante/personnes-a-risque.html
Veuillez continuer à surveiller les alertes et les prévisions émises par Environnement Canada. Pour signaler du temps violent, envoyez un courriel à meteoQC@ec.gc.ca ou publiez un message sur X en utilisant #meteoqc.
From: Jul 16, 2025 03:12
Until: Jul 16, 2025 19:12
heat
The heat is ongoing.
What:
Maximum temperatures between 31 and 33 degrees Celsius combined with high humidity will result in humidex values approaching 40. In addition, nights will be warm, with lows around 20 degrees Celsius.
When:
Wednesday.
Where:
Outaouais, Greater Montreal, Lachute, Lanaudière, Montérégie and Drummondville
Additional information:
Although humidex values are not expected to reach 40 on Thursday, the day will still be uncomfortable, with values between 35 and 38. It's only starting Thursday evening that a real change of airmass will happen and temperatures will drop.
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Heat warnings are issued when very high temperature or humidity conditions are expected to pose an elevated risk of heat illnesses, such as heat stroke or heat exhaustion.
For more information: https://www.canada.ca/en/health-canada/services/climate-change-health/extreme-heat/how-protect-yourself.html https://www.canada.ca/en/health-canada/services/climate-change-health/extreme-heat/who-is-at-risk.html
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to QCstorm@ec.gc.ca or post reports on X using #QCStorm.
From: Jul 15, 2025 19:50
Until: Jul 16, 2025 12:08
air quality
Smoke from forest fires in the Canadian Prairies is causing poor air quality and reduced visibilities. A gradual improvement of these conditions is expected by Wednesday morning.
###
As smoke levels increase, health risks increase. Limit time outdoors. Consider reducing or rescheduling outdoor sports, activities and events.
You may experience mild and common symptoms such as eye, nose and throat irritation, headaches or a mild cough. More serious but less common symptoms include wheezing, chest pains or severe cough. If you think you are having a medical emergency, seek immediate medical assistance.
People more likely to be impacted by outdoor air pollution, including people aged 65 and older, pregnant people, infants and young children, people with an existing illness or chronic health condition, and people who work outdoors, should reduce or reschedule strenuous activities outdoors and seek medical attention if experiencing symptoms.
Please continue to monitor alerts and forecasts issued by Environment Canada.
From: Jul 15, 2025 19:52
Until: Jul 16, 2025 11:53
heat
Hot and humid weather for the weekend.
What: humidex near 40.
When: until late Sunday.
Additional information: maximum temperatures will range between 29 and 32 degrees Celsius, with lows of 20 degrees Celsius or higher.
###
Heat warnings are issued when very high temperature or humidity conditions are expected to pose an elevated risk of heat illnesses, such as heat stroke or heat exhaustion.
For more information: https://www.canada.ca/en/health-canada/services/climate-change-health/extreme-heat/how-protect-yourself.html https://www.canada.ca/en/health-canada/services/climate-change-health/extreme-heat/who-is-at-risk.html
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to QCstorm@ec.gc.ca or post reports on X using #QCStorm.
From: Jul 12, 2025 20:25
Until: Jul 13, 2025 12:32
chaleur
Temps chaud et humide pour la fin de semaine
Quoi : humidex près de 40
Quand : samedi et dimanche
Où : Grand Montréal
Informations additionnelles : Les températures maximales se situeront entre 29 et 32 degrés Celsius et les minimums seront de 20 degrés Celsius ou plus élevés.
###
Un avertissement de chaleur est émis lorsque des conditions très chaudes ou humides devraient présenter un risque élevé de malaises liés à la chaleur, comme les coups de chaleur et l'épuisement dû à la chaleur.
Pour obtenir plus de renseignments : https://www.canada.ca/fr/sante-canada/services/changements-climatiques-sante/chaleur-accablante/comment-se-proteger.html https://www.canada.ca/fr/sante-canada/services/changements-climatiques-sante/chaleur-accablante/personnes-a-risque.html
Veuillez continuer à surveiller les alertes et les prévisions émises par Environnement Canada. Pour signaler du temps violent, envoyez un courriel à meteoQC@ec.gc.ca ou publiez un message sur X en utilisant #meteoqc.
From: Jul 12, 2025 03:20
Until: Jul 12, 2025 19:20
heat
A warm and humid weekend.
What: humidex near 40.
When: Saturday and Sunday.
Where: Greater Montreal.
Additional information: maximum temperatures will be between 29 and 32 degrees Celsius, with lows of 20 degrees Celsius or higher.
###
Heat warnings are issued when very high temperature or humidity conditions are expected to pose an elevated risk of heat illnesses, such as heat stroke or heat exhaustion.
For more information: https://www.canada.ca/en/health-canada/services/climate-change-health/extreme-heat/how-protect-yourself.html https://www.canada.ca/en/health-canada/services/climate-change-health/extreme-heat/who-is-at-risk.html
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to QCstorm@ec.gc.ca or post reports on X using #QCStorm.
From: Jul 11, 2025 19:09
Until: Jul 12, 2025 11:09
orages
Les conditions sont propices à la formation d'orages violents pouvant produire des rafales fortes et de la pluie forte cet après-midi et tôt ce soir.
Les activités nautiques pourraient s’avérer dangereuses en raison des rafales violentes et soudaines sur les plans d’eau.
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Les veilles d'orages violents sont émises lorsque les conditions sont propices à la formation d'orages pouvant produire de la grêle, de la pluie ou des vents destructeurs.
Veuillez continuer à surveiller les alertes et les prévisions émises par Environnement Canada. Pour signaler du temps violent, envoyez un courriel à meteoQC@ec.gc.ca ou publiez un message sur X en utilisant #meteoqc.
From: Jul 07, 2025 13:48
Until: Jul 08, 2025 04:02
