heat
###
From: Jul 02, 2026 09:09
Until: Jul 02, 2026 10:09
frost
Frost is expected.
Temperatures will be near or below the freezing mark this morning.
Temperatures are expected to be near or below the freezing mark again tonight into Friday morning for some regions.
###
Damage to plants, trees, and crops is possible.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: May 21, 2026 08:01
Until: May 22, 2026 00:01
frost
###
Damage to plants, trees, and crops is possible.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: May 21, 2026 08:01
Until: May 22, 2026 00:01
snowfall
Snow, heavy at times, is expected.
What:
Total snowfall amounts of 10 to 20 cm.
Peak snowfall rates of 2 to 3 cm per hour.
Reduced visibility in heavy snow and local blowing snow.
When:
Beginning this afternoon and ending Friday morning.
Additional Information:
A Colorado low will bring snow to the area. The heaviest snow is expected tonight.
###
Roads and walkways will likely be difficult to navigate due to accumulating snow. Road closures are possible.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Apr 02, 2026 08:28
Until: Apr 03, 2026 07:23
snowfall
Snow, heavy at times, is expected.
What:
Total snowfall amounts of 10 to 20 cm.
Peak snowfall rates of 2 to 3 cm per hour.
Reduced visibility in heavy snow and local blowing snow.
When:
Beginning Thursday afternoon and ending Friday morning.
Additional Information:
A Colorado low will bring snow to the area. The heaviest snow is expected to fall Thursday night.
###
Roads and walkways will likely be difficult to navigate due to accumulating snow. Road closures are possible.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Apr 02, 2026 01:47
Until: Apr 02, 2026 17:47
weather
Wintry weather continues today.
What:
Total snowfall amounts of 10 to 15 cm.
Reduced visibility in heavy snow.
Risk of freezing rain.
When:
Ending late this afternoon.
Additional information:
Snow may change to ice pellets or freezing rain this afternoon, reducing snowfall amounts.
Roads and walkways may be difficult to navigate due to accumulating snow. Untreated roads may become icy and slippery. Motorists should allow extra time to get to their destination.
###
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Mar 21, 2026 13:46
Until: Mar 22, 2026 01:04
freezing drizzle
Areas of freezing drizzle are expected.
What:
Freezing drizzle resulting in icy and slippery conditions.
When:
Beginning overnight or early Friday morning and ending Friday afternoon or evening.
###
Roads, walkways, and other surfaces will likely become icy and slippery. There is risk of injury due to slips and falls.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Mar 05, 2026 23:26
Until: Mar 06, 2026 20:09
freezing drizzle
Freezing drizzle continues.
What:
Freezing drizzle resulting in icy and slippery conditions.
When:
Tonight into Thursday morning.
###
Roads, walkways, and other surfaces will likely become icy and slippery. Icy surfaces will likely form and could be difficult to detect.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Mar 05, 2026 01:18
Until: Mar 05, 2026 17:18
freezing drizzle
Areas of freezing drizzle are expected.
Freezing drizzle is expected to continue this evening, possibly into early tomorrow morning.
###
Roads, walkways, and other surfaces will likely become icy and slippery.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Mar 04, 2026 23:21
Until: Mar 05, 2026 09:00
freezing drizzle
Areas of freezing drizzle are expected.
Freezing drizzle is expected to continue this afternoon and evening.
###
Roads, walkways, and other surfaces will likely become icy and slippery.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Mar 04, 2026 18:11
Until: Mar 05, 2026 07:03
weather
Strong winds expected Friday.
What:
Strong winds gusting up to 80 km/h.
When:
Beginning late Friday morning and easing Friday evening.
Additional information:
Strong winds from the northwest gusting up to 80 km/h will develop late Friday morning in the wake of a cold front. Winds will ease Friday evening.
Loose objects may be tossed. Local utility outages are possible.
###
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Feb 26, 2026 22:12
Until: Feb 27, 2026 14:12
snowfall
Significant snowfall continues.
What:
Total snowfall accumulations of 10 to 25 cm.
Reduced visibility in heavy snow.
When:
Continuing into Saturday afternoon. Light snow may linger into Saturday evening for some locales.
Additional information:
A band of snow is slowly moving westward across the area. Travel along Highways 11 and 17 may be impacted.
###
Roads and walkways will likely be difficult to navigate due to accumulating snow. Visibility will likely be reduced at times. Road closures are possible.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Feb 21, 2026 04:25
Until: Feb 21, 2026 20:02
snowfall
Significant snowfall expected.
What:
Total snowfall accumulations of 10 to 25 cm.
Reduced visibility in heavy snow.
When:
Continuing into Saturday afternoon. Light snow may linger into Saturday evening for some locales.
Additional information:
A band of snowfall is slowly moving westward across the area. Travel along Highways 11 and 17 may be impacted.
###
Roads and walkways will likely be difficult to navigate due to accumulating snow. Visibility will likely be reduced at times. Road closures are possible.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Feb 20, 2026 21:46
Until: Feb 21, 2026 13:50
snowfall
Significant snowfall expected.
What:
Total snowfall accumulations of 10 to 25 cm.
Reduced visibility in heavy snow.
When:
Today into Saturday afternoon. Light snow may linger into Saturday evening for some locales.
Additional information:
A band of snowfall is expected to slowly move westward across the area. There is some uncertainty with the westward extent of this band such that the City of Thunder Bay and Raith, as well as areas to their west, may receive lesser amounts. Travel along Highways 11 and 17 may be impacted.
###
Roads and walkways will likely be difficult to navigate due to accumulating snow. Visibility will likely be reduced at times. Road closures are possible.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Feb 20, 2026 18:30
Until: Feb 21, 2026 10:30
snowfall
Significant snowfall expected.
What:
Total snowfall accumulations of 10 to 25 cm.
When:
Today into Saturday afternoon. Light snow may linger into Saturday evening for some locales.
Additional information:
A band of snowfall is expected to slowly move westward across the area. There is some uncertainty with the westward extent of this band such that the City of Thunder Bay and Raith, as well as areas to their west, may receive lesser amounts. Travel along Highways 11 and 17 may be impacted.
###
Roads and walkways will likely be difficult to navigate due to accumulating snow. Road closures are possible.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Feb 20, 2026 16:19
Until: Feb 21, 2026 08:19
snowfall
Significant snowfall expected.
What:
Total snowfall accumulations of 10 to 20 cm.
When:
Today into Saturday afternoon. Light snow may linger into Saturday evening for some locales.
Additional information:
A band of snowfall is expected to slowly move westward across the area. There is some uncertainty with the westward extent of this band such that the City of Thunder Bay and Raith, as well as areas to their west, may receive lesser amounts. Travel along Highways 11 and 17 may be impacted.
###
Roads and walkways will likely be difficult to navigate due to accumulating snow. Road closures are possible.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Feb 20, 2026 15:26
Until: Feb 21, 2026 07:26
snowfall
Significant snowfall expected.
What:
Total snowfall accumulations of 10 to 20 cm.
When:
Beginning this afternoon and continuing into Saturday afternoon. Light snow may linger into Saturday evening for some locales.
Additional information:
A band of snowfall is expected to slowly move westward into the area this afternoon. There is some uncertainty with the westward extent of this band such that the City of Thunder Bay and Raith, as well as areas to their west, may receive lesser amounts. Travel along Highways 11 and 17 may be impacted.
###
Roads and walkways will likely be difficult to navigate due to accumulating snow. Road closures are possible.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Feb 20, 2026 05:39
Until: Feb 21, 2026 02:13
winter storm
Hazardous winter conditions are expected to continue.
What:
Additional snowfall amounts of 5 to 10 cm.
Reduced visibility in blowing snow with winds gusting up to 60 km/h.
When:
Ending late this afternoon or early this evening.
###
Roads and walkways may be very difficult to navigate. Travel may be hazardous. Visibility may be suddenly reduced to near zero at times. Road closures are possible.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Feb 19, 2026 18:35
Until: Feb 20, 2026 00:01
winter storm
Hazardous winter conditions are expected to continue.
What:
Additional snowfall amounts of 5 to 10 cm.
Reduced visibility in blowing snow with winds gusting up to 60 km/h.
When:
Continuing into this afternoon.
Additional information:
Another wave of snow has moved into the area and is expected to bring an additional 5 to 10 cm by this afternoon. Blowing snow with winds gusting up to 60 km/h are also expected, particularly near the shores of Lake Superior. These hazardous conditions will improve this afternoon.
###
Roads and walkways may be very difficult to navigate. Travel may be hazardous. Visibility may be suddenly reduced to near zero at times. Road closures are possible.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Feb 19, 2026 16:28
Until: Feb 19, 2026 21:01
winter storm
Hazardous winter conditions are expected to continue today.
What:
Additional snowfall amounts of 5 to 10 cm.
Reduced visibility in blowing snow with winds gusting up to 60 km/h.
When:
Continuing into this afternoon.
Additional information:
Periods of light snow and freezing drizzle continue overnight. Another wave of snow is expected to move in this morning, giving an additional 5 to 10 cm with the ongoing winds gusting up to 60 km/h. These hazardous conditions may continue into this afternoon when the winds weaken, ending the visibility reduction due to blowing snow.
###
Roads and walkways may be very difficult to navigate. Travel may be hazardous. Visibility may be suddenly reduced to near zero at times. Road closures are possible.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Feb 19, 2026 05:39
Until: Feb 19, 2026 20:05
winter storm
Hazardous winter conditions are expected to continue today.
What:
Additional snowfall amounts of 5 to 10 cm.
Reduced visibility in blowing snow with winds gusting up to 60 km/h.
When:
Continuing into this afternoon.
Additional information:
Another wave of snow has moved into the area and is expected to bring an additional 5 to 10 cm by this afternoon. Blowing snow with winds gusting up to 60 km/h are also expected, particularly near the shores of Lake Superior. These hazardous conditions will improve this afternoon.
###
Roads and walkways may be very difficult to navigate. Travel may be hazardous. Visibility may be suddenly reduced to near zero at times. Road closures are possible.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Feb 19, 2026 10:34
Until: Feb 19, 2026 20:02
winter storm
Winter storm conditions continue.
What:
Additional snowfall amounts of 25 cm.
Significantly reduced visibility in blowing snow with winds gusting up to 70 km/h.
When:
Continuing into Thursday afternoon.
Additional information:
The heaviest snow is expected to fall near the Minnesota border, south of the city of Thunder Bay. Winds gusting up to 70 km/h are also most likely near the border. Winter storm conditions may continue into Thursday afternoon when the winds weaken, ending the visibility reduction due to blowing snow.
###
Roads and walkways may be very difficult to navigate. Travel may be hazardous. Visibility may be suddenly reduced to near zero at times. Road closures are possible.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Feb 19, 2026 02:51
Until: Feb 19, 2026 18:51
winter storm
Winter storm conditions continue.
What:
Snowfall amounts of 20 to 40 cm, with locally higher amounts near 50 cm possible.
Significantly reduced visibility in blowing snow with winds gusting up to 80 km/h.
When:
Continuing into tonight.
Additional information:
The heaviest snow is expected to fall near the Minnesota border, south of the city of Thunder Bay. Winds gusting up to 80 km/h are also most likely near the border. While winter storm conditions should end tonight, snowfall will continue into Thursday, where an additional 5 to 10 cm is possible.
###
Roads and walkways may be very difficult to navigate. Travel may be hazardous. Visibility may be suddenly reduced to near zero at times. Road closures are possible.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Feb 18, 2026 16:01
Until: Feb 19, 2026 08:01
weather
Hazardous winter conditions continue.
What:
Snowfall amounts of 10 to 15 cm.
Reduced visibility in blowing snow with winds gusting up to 70 km/h.
When:
Continuing into tonight.
Additional information:
Snow and blowing snow associated with a low pressure system will continue. Winds gusting up to 70 km/h are most likely along the Minnesota border.
Roads and walkways may be difficult to navigate. Visibility may be suddenly reduced to near zero at times. Road closures are possible. Allow extra time for travel.
###
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Feb 18, 2026 16:05
Until: Feb 19, 2026 07:03
weather
Hazardous winter conditions tonight into Wednesday.
What:
Snowfall amounts of 10 to 15 cm.
Reduced visibility in blowing snow with winds gusting up to 80 km/h.
When:
Continuing through Wednesday.
Additional information:
Snow and local blowing snow associated with an approaching system will develop tonight. Winds gusting up to 80 km/h are most likely along the Minnesota border.
Roads and walkways may be difficult to navigate. Visibility may be suddenly reduced to near zero at times. Road closures are possible. Allow extra time for travel.
###
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Feb 18, 2026 12:56
Until: Feb 19, 2026 04:56
winter storm
Winter storm conditions beginning early this morning.
What:
Snowfall amounts of 20 to 40 cm, with locally higher amounts near 50 cm possible.
Significantly reduced visibility in blowing snow with winds gusting up to 80 km/h.
When:
Beginning early this morning and ending overnight.
Additional information:
The heaviest snow is expected to fall near the Minnesota border, south of the city of Thunder Bay. Winds gusting up to 80 km/h are also most likely near the border. While winter storm conditions should end tonight, snowfall will continue into Thursday, where an additional 5 to 10 cm are possible.
###
Roads and walkways may be very difficult to navigate. Travel may be hazardous. Visibility may be suddenly reduced to near zero at times. Road closures are possible.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Feb 18, 2026 10:31
Until: Feb 19, 2026 02:31
cold
A prolonged period of very cold wind chills is expected.
What:
Wind chill values near minus 40.
When:
Continuing through Sunday morning, possibly returning overnight Sunday into Monday morning for some areas.
Additional information:
Little relief is expected during the day as an Arctic airmass establishes itself over the region.
###
Extreme cold puts everyone at risk.
Risks are greater for young children, older adults, people with chronic illnesses, people working or exercising outdoors, and those without proper shelter.
Watch for cold related symptoms: shortness of breath, chest pain, muscle pain and weakness, numbness and colour change in fingers and toes.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
From: Jan 24, 2026 21:52
Until: Jan 25, 2026 19:59
cold
A prolonged period of very cold wind chills is expected.
What:
Wind chill values of minus 40 to minus 45.
When:
Continuing through Sunday morning.
Additional information:
Little relief is expected during the day as an Arctic airmass establishes itself over the region.
###
Extreme cold puts everyone at risk.
Risks are greater for young children, older adults, people with chronic illnesses, people working or exercising outdoors, and those without proper shelter.
Watch for cold related symptoms: shortness of breath, chest pain, muscle pain and weakness, numbness and colour change in fingers and toes.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
From: Jan 24, 2026 15:28
Until: Jan 25, 2026 07:28
cold
A prolonged period of very cold wind chills is expected.
What:
Wind chill values of minus 40 to minus 45.
When:
Beginning tonight continuing into the weekend.
Additional information:
Little relief is expected during the day as an Arctic airmass establishes itself over the region. Temperatures may moderate Saturday, however cold wind chills may return again Sunday morning for some regions.
###
Extreme cold puts everyone at risk.
Risks are greater for young children, older adults, people with chronic illnesses, people working or exercising outdoors, and those without proper shelter.
Watch for cold related symptoms: shortness of breath, chest pain, muscle pain and weakness, numbness and colour change in fingers and toes.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
From: Jan 23, 2026 09:56
Until: Jan 24, 2026 01:56
cold
A prolonged period of very cold wind chills is expected.
What:
Wind chill values of minus 40 to minus 45.
When:
Beginning tonight continuing into the weekend.
Additional information:
Little relief is expected during the day Friday as an Arctic airmass establishes itself over the region. Temperatures may moderate Saturday, however cold wind chills may return again Sunday morning for some regions.
###
Extreme cold puts everyone at risk.
Risks are greater for young children, older adults, people with chronic illnesses, people working or exercising outdoors, and those without proper shelter.
Watch for cold related symptoms: shortness of breath, chest pain, muscle pain and weakness, numbness and colour change in fingers and toes.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
From: Jan 23, 2026 04:51
Until: Jan 23, 2026 20:51
cold
A prolonged period of very cold wind chills is expected.
What:
Wind chill values of minus 40.
When:
Beginning tonight continuing into the weekend.
Additional information:
Little relief is expected during the day Friday as an Arctic airmass establishes itself over the region. Temperatures may moderate Saturday, however cold wind chills may return again Sunday morning for some regions.
###
Extreme cold puts everyone at risk.
Risks are greater for young children, older adults, people with chronic illnesses, people working or exercising outdoors, and those without proper shelter.
Watch for cold related symptoms: shortness of breath, chest pain, muscle pain and weakness, numbness and colour change in fingers and toes.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
From: Jan 22, 2026 23:14
Until: Jan 23, 2026 16:14
snowfall
Heavy snowfall expected Saturday.
What:
Local snowfall amounts of 15 to 25 cm.
Reduced visibility in heavy snow and local blowing snow.
When:
Saturday morning through early Saturday evening.
Additional information:
Southeast winds off Lake Superior will lead to higher snowfall amounts and local blowing snow.
###
Roads and walkways will likely be difficult to navigate due to accumulating snow.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
From: Jan 09, 2026 20:34
Until: Jan 10, 2026 19:38
fog
Areas of dense fog is expected or occurring.
What:
Near zero visibility in areas of dense fog.
When:
This morning.
Additional Information:
Areas of dense fog are expected to improve later this morning, but may linger into the afternoon for areas near the shore of Lake Superior.
###
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
From: Jan 08, 2026 07:23
Until: Jan 08, 2026 23:06
