FPCN11 CWTO 121445
ISSUED BY EC at 11:00 A.M. EDT TUESDAY 12 MAY 2026.

Orangeville - Grand Valley - Southern Dufferin County

Today..increasing cloudiness this afternoon. High 12.

Tonight..cloudy with 40 percent chance of showers this evening and after midnight. Showers beginning after midnight. Risk of a thunderstorm overnight. Amount 10 to 15 mm. Wind becoming southeast 20 km/h gusting to 40 late this evening. Low plus 5.

Wednesday..showers ending in the morning then cloudy with 60 percent chance of showers. Risk of a thunderstorm early in the morning. Wind becoming west 20 km/h gusting to 40 in the morning. High 12.

Shelburne - Mansfield - Northern Dufferin County

Today..increasing cloudiness this afternoon. High 12.

Tonight..cloudy with 40 percent chance of showers this evening and after midnight. Showers beginning after midnight. Risk of a thunderstorm overnight. Amount 10 to 15 mm. Wind becoming southeast 20 km/h gusting to 40 late this evening. Low plus 5.

Wednesday..showers ending in the morning then cloudy with 60 percent chance of showers. Risk of a thunderstorm early in the morning. Wind becoming west 20 km/h gusting to 40 in the morning. High 12.

Innisfil - New Tecumseth - Angus

Today..sunny. Increasing cloudiness this afternoon. High 13.

Tonight..cloudy with 40 percent chance of showers this evening and after midnight. Showers beginning after midnight. Risk of a thunderstorm overnight. Amount 10 to 15 mm. Wind becoming southeast 20 km/h gusting to 40 late this evening. Low plus 5.

Wednesday..showers ending in the morning then cloudy with 60 percent chance of showers. Risk of a thunderstorm early in the morning. Wind becoming west 20 km/h gusting to 40 in the morning. High 13.

Extended 3-7 day forecast.

Past 0-2 day forecasts
Sun May 10 08:46 UTC
Sun May 10 13:29 UTC
Sun May 10 14:46 UTC
Sun May 10 19:27 UTC
Sun May 10 20:28 UTC
Mon May 11 00:48 UTC
Mon May 11 07:36 UTC
Mon May 11 08:46 UTC
Mon May 11 14:45 UTC
Mon May 11 19:19 UTC
Tue May 12 08:45 UTC
Tue May 12 09:01 UTC
Tue May 12 14:45 UTC (current forecast)

Past 3-7 day forecasts
Sun May 10 08:55 UTC
Sun May 10 14:20 UTC
Sun May 10 18:50 UTC
Mon May 11 08:55 UTC
Mon May 11 14:20 UTC
Mon May 11 19:24 UTC
Tue May 12 08:54 UTC
Tue May 12 14:20 UTC (current forecast)

Note that Wind chill, Humidex and UV index are suppressed.