Ontario Weather Alerts
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Ontario Weather Alerts from Environment Canada Data. This is an unofficial convenience service NOT affiliated with ECCC. Please consult ECCC for official alerts weather.gc.ca
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@JayIsPainting.earthskyart.ca
07:40 Nov 20 2025
FOG ADVISORY ENDED for Gatineau
Expires: 08:40 Nov 20 2025
Poor visibility in fog is no longer expected.
...
Visit https://weather.gc.ca for details
FOG ADVISORY ENDED for Gatineau
Expires: 08:40 Nov 20 2025
Poor visibility in fog is no longer expected.
...
Visit https://weather.gc.ca for details
November 21, 2025 at 6:27 AM
07:40 Nov 20 2025
FOG ADVISORY ENDED for Gatineau
Expires: 08:40 Nov 20 2025
Poor visibility in fog is no longer expected.
...
Visit https://weather.gc.ca for details
FOG ADVISORY ENDED for Gatineau
Expires: 08:40 Nov 20 2025
Poor visibility in fog is no longer expected.
...
Visit https://weather.gc.ca for details
After almost a month offline due to server issues and then some file structure changes by ECCC I had to recode for, I've finally got the weather alert bots back online. - Jay
November 17, 2025 at 10:48 PM
After almost a month offline due to server issues and then some file structure changes by ECCC I had to recode for, I've finally got the weather alert bots back online. - Jay
11:37 Nov 17 2025
WEATHER ADVISORY ENDED for Southern Ontario
Expires: 12:37 Nov 17 2025
...
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WEATHER ADVISORY ENDED for Southern Ontario
Expires: 12:37 Nov 17 2025
...
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November 17, 2025 at 10:45 PM
11:37 Nov 17 2025
WEATHER ADVISORY ENDED for Southern Ontario
Expires: 12:37 Nov 17 2025
...
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WEATHER ADVISORY ENDED for Southern Ontario
Expires: 12:37 Nov 17 2025
...
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22:52 Sep 15 2025
SQUALL WARNING ENDED for Lake of the Woods Lake Nipigon North Channel Lake Nipissing and Lake Simcoe
Expires: 23:52 Sep 15 2025
Squalls have weakened or moved out of the area.
...
Visit https://weather.gc.ca for details
SQUALL WARNING ENDED for Lake of the Woods Lake Nipigon North Channel Lake Nipissing and Lake Simcoe
Expires: 23:52 Sep 15 2025
Squalls have weakened or moved out of the area.
...
Visit https://weather.gc.ca for details
September 16, 2025 at 6:01 AM
22:52 Sep 15 2025
SQUALL WARNING ENDED for Lake of the Woods Lake Nipigon North Channel Lake Nipissing and Lake Simcoe
Expires: 23:52 Sep 15 2025
Squalls have weakened or moved out of the area.
...
Visit https://weather.gc.ca for details
SQUALL WARNING ENDED for Lake of the Woods Lake Nipigon North Channel Lake Nipissing and Lake Simcoe
Expires: 23:52 Sep 15 2025
Squalls have weakened or moved out of the area.
...
Visit https://weather.gc.ca for details
16:08 Sep 15 2025
SQUALL WARNING ENDED for Lake of the Woods Lake Nipigon North Channel Lake Nipissing and Lake Simcoe
Expires: 17:08 Sep 15 2025
Squalls have weakened or moved out of the area.
...
Visit https://weather.gc.ca for details
SQUALL WARNING ENDED for Lake of the Woods Lake Nipigon North Channel Lake Nipissing and Lake Simcoe
Expires: 17:08 Sep 15 2025
Squalls have weakened or moved out of the area.
...
Visit https://weather.gc.ca for details
September 15, 2025 at 10:11 PM
16:08 Sep 15 2025
SQUALL WARNING ENDED for Lake of the Woods Lake Nipigon North Channel Lake Nipissing and Lake Simcoe
Expires: 17:08 Sep 15 2025
Squalls have weakened or moved out of the area.
...
Visit https://weather.gc.ca for details
SQUALL WARNING ENDED for Lake of the Woods Lake Nipigon North Channel Lake Nipissing and Lake Simcoe
Expires: 17:08 Sep 15 2025
Squalls have weakened or moved out of the area.
...
Visit https://weather.gc.ca for details
14:27 Sep 15 2025
SQUALL WARNING IN EFFECT for Lake of the Woods Lake Nipigon North Channel Lake Nipissing and Lake Simcoe
Expires: 17:25 Sep 15 2025
...
Visit https://weather.gc.ca for details
SQUALL WARNING IN EFFECT for Lake of the Woods Lake Nipigon North Channel Lake Nipissing and Lake Simcoe
Expires: 17:25 Sep 15 2025
...
Visit https://weather.gc.ca for details
September 15, 2025 at 8:31 PM
14:27 Sep 15 2025
SQUALL WARNING IN EFFECT for Lake of the Woods Lake Nipigon North Channel Lake Nipissing and Lake Simcoe
Expires: 17:25 Sep 15 2025
...
Visit https://weather.gc.ca for details
SQUALL WARNING IN EFFECT for Lake of the Woods Lake Nipigon North Channel Lake Nipissing and Lake Simcoe
Expires: 17:25 Sep 15 2025
...
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12:49 Sep 15 2025
SQUALL WATCH IN EFFECT for Lake of the Woods Lake Nipigon North Channel Lake Nipissing and Lake Simcoe
Expires: 19:47 Sep 15 2025
Thunderstorms that develop this afternoon may have squalls of up to 45 knots associated.
...
Visit https://weather.gc.ca for details
SQUALL WATCH IN EFFECT for Lake of the Woods Lake Nipigon North Channel Lake Nipissing and Lake Simcoe
Expires: 19:47 Sep 15 2025
Thunderstorms that develop this afternoon may have squalls of up to 45 knots associated.
...
Visit https://weather.gc.ca for details
September 15, 2025 at 6:51 PM
12:49 Sep 15 2025
SQUALL WATCH IN EFFECT for Lake of the Woods Lake Nipigon North Channel Lake Nipissing and Lake Simcoe
Expires: 19:47 Sep 15 2025
Thunderstorms that develop this afternoon may have squalls of up to 45 knots associated.
...
Visit https://weather.gc.ca for details
SQUALL WATCH IN EFFECT for Lake of the Woods Lake Nipigon North Channel Lake Nipissing and Lake Simcoe
Expires: 19:47 Sep 15 2025
Thunderstorms that develop this afternoon may have squalls of up to 45 knots associated.
...
Visit https://weather.gc.ca for details
08:36 Sep 15 2025
FOG ADVISORY ENDED for Northern Ontario
Expires: 09:36 Sep 15 2025
Visibilities have improved and are no longer expected to meet fog advisory criteria.
...
Visit https://weather.gc.ca for details
FOG ADVISORY ENDED for Northern Ontario
Expires: 09:36 Sep 15 2025
Visibilities have improved and are no longer expected to meet fog advisory criteria.
...
Visit https://weather.gc.ca for details
September 15, 2025 at 2:41 PM
08:36 Sep 15 2025
FOG ADVISORY ENDED for Northern Ontario
Expires: 09:36 Sep 15 2025
Visibilities have improved and are no longer expected to meet fog advisory criteria.
...
Visit https://weather.gc.ca for details
FOG ADVISORY ENDED for Northern Ontario
Expires: 09:36 Sep 15 2025
Visibilities have improved and are no longer expected to meet fog advisory criteria.
...
Visit https://weather.gc.ca for details
07:33 Sep 15 2025
FOG ADVISORY ENDED for Southern Ontario
Expires: 08:33 Sep 15 2025
Visibilities have improved and are no longer expected to meet fog advisory criteria.
...
Visit https://weather.gc.ca for details
FOG ADVISORY ENDED for Southern Ontario
Expires: 08:33 Sep 15 2025
Visibilities have improved and are no longer expected to meet fog advisory criteria.
...
Visit https://weather.gc.ca for details
September 15, 2025 at 1:36 PM
07:33 Sep 15 2025
FOG ADVISORY ENDED for Southern Ontario
Expires: 08:33 Sep 15 2025
Visibilities have improved and are no longer expected to meet fog advisory criteria.
...
Visit https://weather.gc.ca for details
FOG ADVISORY ENDED for Southern Ontario
Expires: 08:33 Sep 15 2025
Visibilities have improved and are no longer expected to meet fog advisory criteria.
...
Visit https://weather.gc.ca for details
04:45 Sep 15 2025
FOG ADVISORY IN EFFECT for Southern Ontario
Expires: 11:30 Sep 15 2025
Near zero visibility in fog is expected or occurring over some areas.
...
Visit https://weather.gc.ca for details
FOG ADVISORY IN EFFECT for Southern Ontario
Expires: 11:30 Sep 15 2025
Near zero visibility in fog is expected or occurring over some areas.
...
Visit https://weather.gc.ca for details
September 15, 2025 at 10:46 AM
04:45 Sep 15 2025
FOG ADVISORY IN EFFECT for Southern Ontario
Expires: 11:30 Sep 15 2025
Near zero visibility in fog is expected or occurring over some areas.
...
Visit https://weather.gc.ca for details
FOG ADVISORY IN EFFECT for Southern Ontario
Expires: 11:30 Sep 15 2025
Near zero visibility in fog is expected or occurring over some areas.
...
Visit https://weather.gc.ca for details
02:18 Sep 15 2025
FOG ADVISORY IN EFFECT for Southern Ontario
Expires: 11:30 Sep 15 2025
Near zero visibility in fog is expected or occurring over some areas.
Fog is expected to dissipate later this morning.
...
Visit https://weather.gc.ca for details
FOG ADVISORY IN EFFECT for Southern Ontario
Expires: 11:30 Sep 15 2025
Near zero visibility in fog is expected or occurring over some areas.
Fog is expected to dissipate later this morning.
...
Visit https://weather.gc.ca for details
September 15, 2025 at 8:21 AM
02:18 Sep 15 2025
FOG ADVISORY IN EFFECT for Southern Ontario
Expires: 11:30 Sep 15 2025
Near zero visibility in fog is expected or occurring over some areas.
Fog is expected to dissipate later this morning.
...
Visit https://weather.gc.ca for details
FOG ADVISORY IN EFFECT for Southern Ontario
Expires: 11:30 Sep 15 2025
Near zero visibility in fog is expected or occurring over some areas.
Fog is expected to dissipate later this morning.
...
Visit https://weather.gc.ca for details
07:16 Sep 14 2025
FOG ADVISORY ENDED for Southern Ontario
Expires: 08:16 Sep 14 2025
Visibilities have improved and are no longer expected to meet fog advisory criteria.
...
Visit https://weather.gc.ca for details
FOG ADVISORY ENDED for Southern Ontario
Expires: 08:16 Sep 14 2025
Visibilities have improved and are no longer expected to meet fog advisory criteria.
...
Visit https://weather.gc.ca for details
September 14, 2025 at 1:21 PM
07:16 Sep 14 2025
FOG ADVISORY ENDED for Southern Ontario
Expires: 08:16 Sep 14 2025
Visibilities have improved and are no longer expected to meet fog advisory criteria.
...
Visit https://weather.gc.ca for details
FOG ADVISORY ENDED for Southern Ontario
Expires: 08:16 Sep 14 2025
Visibilities have improved and are no longer expected to meet fog advisory criteria.
...
Visit https://weather.gc.ca for details
04:50 Sep 14 2025
FOG ADVISORY IN EFFECT for Southern Ontario
Expires: 10:08 Sep 14 2025
Near zero visibility in fog is expected or occurring.
Locally dense fog will persist into early this morning before dissipating.
...
Visit https://weather.gc.ca for details
FOG ADVISORY IN EFFECT for Southern Ontario
Expires: 10:08 Sep 14 2025
Near zero visibility in fog is expected or occurring.
Locally dense fog will persist into early this morning before dissipating.
...
Visit https://weather.gc.ca for details
September 14, 2025 at 10:56 AM
04:50 Sep 14 2025
FOG ADVISORY IN EFFECT for Southern Ontario
Expires: 10:08 Sep 14 2025
Near zero visibility in fog is expected or occurring.
Locally dense fog will persist into early this morning before dissipating.
...
Visit https://weather.gc.ca for details
FOG ADVISORY IN EFFECT for Southern Ontario
Expires: 10:08 Sep 14 2025
Near zero visibility in fog is expected or occurring.
Locally dense fog will persist into early this morning before dissipating.
...
Visit https://weather.gc.ca for details
03:46 Sep 14 2025
FOG ADVISORY IN EFFECT for Southern Ontario
Expires: 09:29 Sep 14 2025
Near zero visibility in fog is expected or occurring.
...
Visit https://weather.gc.ca for details
FOG ADVISORY IN EFFECT for Southern Ontario
Expires: 09:29 Sep 14 2025
Near zero visibility in fog is expected or occurring.
...
Visit https://weather.gc.ca for details
September 14, 2025 at 9:51 AM
03:46 Sep 14 2025
FOG ADVISORY IN EFFECT for Southern Ontario
Expires: 09:29 Sep 14 2025
Near zero visibility in fog is expected or occurring.
...
Visit https://weather.gc.ca for details
FOG ADVISORY IN EFFECT for Southern Ontario
Expires: 09:29 Sep 14 2025
Near zero visibility in fog is expected or occurring.
...
Visit https://weather.gc.ca for details
01:41 Sep 14 2025
FOG ADVISORY IN EFFECT for Southern Ontario
Expires: 08:59 Sep 14 2025
Near zero visibility in fog is expected or occurring.
Locally dense fog will persist into early Sunday morning.
...
Visit https://weather.gc.ca for details
FOG ADVISORY IN EFFECT for Southern Ontario
Expires: 08:59 Sep 14 2025
Near zero visibility in fog is expected or occurring.
Locally dense fog will persist into early Sunday morning.
...
Visit https://weather.gc.ca for details
September 14, 2025 at 7:46 AM
01:41 Sep 14 2025
FOG ADVISORY IN EFFECT for Southern Ontario
Expires: 08:59 Sep 14 2025
Near zero visibility in fog is expected or occurring.
Locally dense fog will persist into early Sunday morning.
...
Visit https://weather.gc.ca for details
FOG ADVISORY IN EFFECT for Southern Ontario
Expires: 08:59 Sep 14 2025
Near zero visibility in fog is expected or occurring.
Locally dense fog will persist into early Sunday morning.
...
Visit https://weather.gc.ca for details
09:02 Sep 13 2025
FOG ADVISORY IN EFFECT for Northern Ontario
Expires: 12:29 Sep 13 2025
Near zero visibility in fog is expected or occurring over some areas.
Fog is expected to dissipate near noon.
...
Visit https://weather.gc.ca for details
FOG ADVISORY IN EFFECT for Northern Ontario
Expires: 12:29 Sep 13 2025
Near zero visibility in fog is expected or occurring over some areas.
Fog is expected to dissipate near noon.
...
Visit https://weather.gc.ca for details
September 13, 2025 at 3:06 PM
09:02 Sep 13 2025
FOG ADVISORY IN EFFECT for Northern Ontario
Expires: 12:29 Sep 13 2025
Near zero visibility in fog is expected or occurring over some areas.
Fog is expected to dissipate near noon.
...
Visit https://weather.gc.ca for details
FOG ADVISORY IN EFFECT for Northern Ontario
Expires: 12:29 Sep 13 2025
Near zero visibility in fog is expected or occurring over some areas.
Fog is expected to dissipate near noon.
...
Visit https://weather.gc.ca for details
07:14 Sep 13 2025
FOG ADVISORY IN EFFECT for Northern Ontario
Expires: 10:59 Sep 13 2025
Near zero visibility in fog is expected or occurring over some areas.
Fog is expected to dissipate later this morning.
...
Visit https://weather.gc.ca for details
FOG ADVISORY IN EFFECT for Northern Ontario
Expires: 10:59 Sep 13 2025
Near zero visibility in fog is expected or occurring over some areas.
Fog is expected to dissipate later this morning.
...
Visit https://weather.gc.ca for details
September 13, 2025 at 1:16 PM
07:14 Sep 13 2025
FOG ADVISORY IN EFFECT for Northern Ontario
Expires: 10:59 Sep 13 2025
Near zero visibility in fog is expected or occurring over some areas.
Fog is expected to dissipate later this morning.
...
Visit https://weather.gc.ca for details
FOG ADVISORY IN EFFECT for Northern Ontario
Expires: 10:59 Sep 13 2025
Near zero visibility in fog is expected or occurring over some areas.
Fog is expected to dissipate later this morning.
...
Visit https://weather.gc.ca for details
05:34 Sep 13 2025
FOG ADVISORY IN EFFECT for Northern Ontario
Expires: 10:59 Sep 13 2025
Near zero visibility in fog is expected or occurring over some areas.
...
Visit https://weather.gc.ca for details
FOG ADVISORY IN EFFECT for Northern Ontario
Expires: 10:59 Sep 13 2025
Near zero visibility in fog is expected or occurring over some areas.
...
Visit https://weather.gc.ca for details
September 13, 2025 at 11:36 AM
05:34 Sep 13 2025
FOG ADVISORY IN EFFECT for Northern Ontario
Expires: 10:59 Sep 13 2025
Near zero visibility in fog is expected or occurring over some areas.
...
Visit https://weather.gc.ca for details
FOG ADVISORY IN EFFECT for Northern Ontario
Expires: 10:59 Sep 13 2025
Near zero visibility in fog is expected or occurring over some areas.
...
Visit https://weather.gc.ca for details
04:44 Sep 13 2025
FOG ADVISORY IN EFFECT for Southern Ontario
Expires: 10:59 Sep 13 2025
Near zero visibility in fog is expected or occurring over some areas.
Fog is expected to dissipate later this morning.
...
Visit https://weather.gc.ca for details
FOG ADVISORY IN EFFECT for Southern Ontario
Expires: 10:59 Sep 13 2025
Near zero visibility in fog is expected or occurring over some areas.
Fog is expected to dissipate later this morning.
...
Visit https://weather.gc.ca for details
September 13, 2025 at 10:46 AM
04:44 Sep 13 2025
FOG ADVISORY IN EFFECT for Southern Ontario
Expires: 10:59 Sep 13 2025
Near zero visibility in fog is expected or occurring over some areas.
Fog is expected to dissipate later this morning.
...
Visit https://weather.gc.ca for details
FOG ADVISORY IN EFFECT for Southern Ontario
Expires: 10:59 Sep 13 2025
Near zero visibility in fog is expected or occurring over some areas.
Fog is expected to dissipate later this morning.
...
Visit https://weather.gc.ca for details
07:24 Sep 12 2025
FROST ADVISORY ENDED for Northern Ontario
Expires: 08:24 Sep 12 2025
Widespread frost is no longer expected.
...
Visit https://weather.gc.ca for details
FROST ADVISORY ENDED for Northern Ontario
Expires: 08:24 Sep 12 2025
Widespread frost is no longer expected.
...
Visit https://weather.gc.ca for details
September 12, 2025 at 1:26 PM
07:24 Sep 12 2025
FROST ADVISORY ENDED for Northern Ontario
Expires: 08:24 Sep 12 2025
Widespread frost is no longer expected.
...
Visit https://weather.gc.ca for details
FROST ADVISORY ENDED for Northern Ontario
Expires: 08:24 Sep 12 2025
Widespread frost is no longer expected.
...
Visit https://weather.gc.ca for details
03:32 Sep 12 2025
SEVERE THUNDERSTORM WATCH ENDED for Northern Ontario
Expires: 04:32 Sep 12 2025
Conditions are no longer favourable for the development of severe thunderstorms.
...
Visit https://weather.gc.ca for details
SEVERE THUNDERSTORM WATCH ENDED for Northern Ontario
Expires: 04:32 Sep 12 2025
Conditions are no longer favourable for the development of severe thunderstorms.
...
Visit https://weather.gc.ca for details
September 12, 2025 at 9:36 AM
03:32 Sep 12 2025
SEVERE THUNDERSTORM WATCH ENDED for Northern Ontario
Expires: 04:32 Sep 12 2025
Conditions are no longer favourable for the development of severe thunderstorms.
...
Visit https://weather.gc.ca for details
SEVERE THUNDERSTORM WATCH ENDED for Northern Ontario
Expires: 04:32 Sep 12 2025
Conditions are no longer favourable for the development of severe thunderstorms.
...
Visit https://weather.gc.ca for details
23:30 Sep 11 2025
SEVERE THUNDERSTORM WATCH IN EFFECT for Northern Ontario
Expires: 10:06 Sep 12 2025
Conditions are favourable for the development of severe thunderstorms that may be capable of producing large hail and heavy rain.
What:
Locally heavy d...
Visit https://weather.gc.ca for details
SEVERE THUNDERSTORM WATCH IN EFFECT for Northern Ontario
Expires: 10:06 Sep 12 2025
Conditions are favourable for the development of severe thunderstorms that may be capable of producing large hail and heavy rain.
What:
Locally heavy d...
Visit https://weather.gc.ca for details
September 12, 2025 at 6:01 AM
23:30 Sep 11 2025
SEVERE THUNDERSTORM WATCH IN EFFECT for Northern Ontario
Expires: 10:06 Sep 12 2025
Conditions are favourable for the development of severe thunderstorms that may be capable of producing large hail and heavy rain.
What:
Locally heavy d...
Visit https://weather.gc.ca for details
SEVERE THUNDERSTORM WATCH IN EFFECT for Northern Ontario
Expires: 10:06 Sep 12 2025
Conditions are favourable for the development of severe thunderstorms that may be capable of producing large hail and heavy rain.
What:
Locally heavy d...
Visit https://weather.gc.ca for details
09:40 Sep 10 2025
FOG ADVISORY IN EFFECT for Northern Ontario
Expires: 12:59 Sep 10 2025
Near zero visibility in fog is expected or occurring.
...
Visit https://weather.gc.ca for details
FOG ADVISORY IN EFFECT for Northern Ontario
Expires: 12:59 Sep 10 2025
Near zero visibility in fog is expected or occurring.
...
Visit https://weather.gc.ca for details
September 10, 2025 at 3:41 PM
09:40 Sep 10 2025
FOG ADVISORY IN EFFECT for Northern Ontario
Expires: 12:59 Sep 10 2025
Near zero visibility in fog is expected or occurring.
...
Visit https://weather.gc.ca for details
FOG ADVISORY IN EFFECT for Northern Ontario
Expires: 12:59 Sep 10 2025
Near zero visibility in fog is expected or occurring.
...
Visit https://weather.gc.ca for details
08:03 Sep 10 2025
FOG ADVISORY ENDED for Southern Ontario
Expires: 09:03 Sep 10 2025
Visibilities have improved and are no longer expected to meet fog advisory criteria.
...
Visit https://weather.gc.ca for details
FOG ADVISORY ENDED for Southern Ontario
Expires: 09:03 Sep 10 2025
Visibilities have improved and are no longer expected to meet fog advisory criteria.
...
Visit https://weather.gc.ca for details
September 10, 2025 at 2:06 PM
08:03 Sep 10 2025
FOG ADVISORY ENDED for Southern Ontario
Expires: 09:03 Sep 10 2025
Visibilities have improved and are no longer expected to meet fog advisory criteria.
...
Visit https://weather.gc.ca for details
FOG ADVISORY ENDED for Southern Ontario
Expires: 09:03 Sep 10 2025
Visibilities have improved and are no longer expected to meet fog advisory criteria.
...
Visit https://weather.gc.ca for details
07:05 Sep 10 2025
FOG ADVISORY IN EFFECT for Southern Ontario
Expires: 10:59 Sep 10 2025
Near zero visibility in fog is expected or occurring over some areas.
Fog will dissipate late this morning.
...
Visit https://weather.gc.ca for details
FOG ADVISORY IN EFFECT for Southern Ontario
Expires: 10:59 Sep 10 2025
Near zero visibility in fog is expected or occurring over some areas.
Fog will dissipate late this morning.
...
Visit https://weather.gc.ca for details
September 10, 2025 at 1:11 PM
07:05 Sep 10 2025
FOG ADVISORY IN EFFECT for Southern Ontario
Expires: 10:59 Sep 10 2025
Near zero visibility in fog is expected or occurring over some areas.
Fog will dissipate late this morning.
...
Visit https://weather.gc.ca for details
FOG ADVISORY IN EFFECT for Southern Ontario
Expires: 10:59 Sep 10 2025
Near zero visibility in fog is expected or occurring over some areas.
Fog will dissipate late this morning.
...
Visit https://weather.gc.ca for details