heat
A heat event continues.
What:
Maximum temperatures of 29 to 33 degrees Celsius.
Minimum temperatures of 18 to 20 degrees Celsius.
Humidex values of 36 to 40.
When:
Continuing today, and possibly into Tuesday for some areas.
Additional information:
Hot and humid air can also bring deteriorating air quality and can result in the Air Quality Health Index approaching the high-risk category.
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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 ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Jul 13, 2026 22:54
Until: Jul 14, 2026 14:57
thunderstorm
Severe thunderstorms associated with this alert have weakened or moved out of the area.
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From: Jul 14, 2026 00:17
Until: Jul 14, 2026 01:17
weather
Heavy snow this evening.
What:
Reduced visibility in heavy snow and local blowing snow.
Snowfall amounts of 4 to 8 cm.
When:
This evening.
Additional information:
A low pressure system will give a couple hours of heavy snow to the area this evening. Gusty winds will also lead to areas of blowing snow.
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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 24, 2026 00:09
Until: Mar 24, 2026 06:10
winter storm
Winter storm continues.
What:
Near-zero visibility in areas of heavy snow and blowing snow.
Total snowfall amounts up to 15 cm.
Strong winds gusting up to 70 km/h.
When:
Ending this evening.
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Travel will likely be challenging. Visibility will likely be suddenly reduced to near zero at times. Local utility outages are likely.
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 27, 2026 20:55
Until: Feb 28, 2026 04:01
winter storm
Winter storm today.
What:
Near-zero visibility in areas of heavy snow and blowing snow.
Total snowfall amounts up to 15 cm.
Strong winds gusting up to 70 km/h.
When:
Continuing today and ending this evening.
Additional information:
Snow associated with a low pressure system will affect the area. Strong northerly winds in the wake of the system will result in blowing snow producing near-zero visibility. Conditions will improve from west to east by this evening.
###
Travel will likely be challenging. Visibility will likely be suddenly reduced to near zero at times. Local utility outages are likely.
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 27, 2026 16:19
Until: Feb 28, 2026 04:01
winter storm
Winter storm today.
What:
Visibilities near-zero in areas of heavy snow and blowing snow.
Total snowfall amounts up to 15 cm.
Strong winds gusting up to 70 km/h.
When:
Beginning this morning and ending this evening.
Additional information:
Snow associated with a low pressure system will affect the area. Northerly winds gusting up to 70 km/h in the wake of the system will result in blowing snow producing near-zero visibilities. Conditions will improve from west to east by this evening.
###
Travel will likely be challenging. Visibility will likely be suddenly reduced to near zero at times. Local utility outages are likely.
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 27, 2026 09:01
Until: Feb 28, 2026 01:01
winter storm
Winter storm expected Friday.
What:
Near-zero visibilities in areas of heavy snow and blowing snow.
Total snowfall amounts up to 15 cm.
Strong winds gusting up to 70 km/h.
When:
Beginning overnight into Friday morning, and ending Friday evening.
Additional information:
Snow associated with a low pressure system will begin affecting portions of far northern Ontario beginning overnight. Northerly winds gusting up to 70 km/h in the wake of the system will result in blowing snow producing near-zero visibilities. Conditions will improve from west to east later Friday afternoon and evening.
###
Visibility may be suddenly reduced to near zero at times. 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 16:48
Until: Feb 27, 2026 08:48
snowfall
A long period of snowfall with total amounts of 10 to 20 cm continues.
What:
Total snowfall accumulations of 10 to 20 cm.
Reduced visibility in heavy snow.
When:
Through this afternoon. Light snow may linger into this evening for some locales.
Additional information:
A band of snow is expected to slowly move westward across the area. Travel along Highway 599 may be impacted.
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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.
From: Feb 21, 2026 11:15
Until: Feb 21, 2026 22:01
snowfall
A long period of snowfall with total amounts of 10 to 20 cm is expected.
What:
Total snowfall accumulations of 10 to 20 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. Travel along Highway 599 may be impacted.
###
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.
From: Feb 20, 2026 19:19
Until: Feb 21, 2026 11:19
