FPCN11 CWTO 202247 AAC
**UPDATED** BY EC at 6:46 P.M. EDT MONDAY 20 JUL 2026.

Burlington - Oakville

Tonight..clear. Becoming partly cloudy this evening. Hazy. Wind south 20 km/h. Low 20.

Tuesday..mainly cloudy. A few showers beginning early in the morning. Risk of a thunderstorm. Wind south 20 km/h gusting to 60 becoming southwest 40 gusting to 60 in the morning then light late in the afternoon. High 24.

Tuesday night..a few showers ending near midnight then partly cloudy. Risk of a thunderstorm early in the evening. Wind becoming northwest 30 km/h in the evening then light after midnight. Low 16.

Halton Hills - Milton

Tonight..partly cloudy. Hazy. Low 18.

Tuesday..cloudy. A few showers beginning early in the morning. Risk of a thunderstorm. Wind southwest 30 km/h gusting to 60. High 24.

Tuesday night..a few showers ending near midnight then partly cloudy. Risk of a thunderstorm early in the evening. Wind becoming northwest 30 km/h in the evening then light after midnight. Low 13.

Mississauga - Brampton

Tonight..clear. Becoming partly cloudy this evening. Hazy. Wind southwest 20 km/h becoming light after midnight. Low 18.

Tuesday..mainly cloudy. A few showers beginning early in the morning. Risk of a thunderstorm. Wind south 30 km/h gusting to 60 becoming west 20 in the afternoon then light late in the afternoon. High 24.

Tuesday night..a few showers ending near midnight then partly cloudy. Risk of a thunderstorm early in the evening. Wind west 30 km/h. Low 13.

Caledon

Tonight..partly cloudy. Hazy overnight. Wind south 20 km/h. Low 18.

Tuesday..cloudy. A few showers beginning early in the morning. Risk of a thunderstorm. Wind southwest 30 km/h gusting to 50 becoming light near noon. Wind becoming west 20 late in the afternoon. High 24.

Tuesday night..a few showers ending near midnight then partly cloudy. Risk of a thunderstorm early in the evening. Low 13.

Extended 3-7 day forecast.

Past 0-2 day forecasts
Sat Jul 18 22:35 UTC
Sun Jul 19 08:45 UTC
Sun Jul 19 11:57 UTC
Sun Jul 19 14:45 UTC
Sun Jul 19 19:15 UTC
Mon Jul 20 08:46 UTC
Mon Jul 20 14:45 UTC
Mon Jul 20 19:20 UTC
Mon Jul 20 22:47 UTC (current forecast)

Past 3-7 day forecasts
Sun Jul 19 08:54 UTC
Sun Jul 19 14:20 UTC
Sun Jul 19 19:24 UTC
Mon Jul 20 08:54 UTC
Mon Jul 20 14:21 UTC
Mon Jul 20 18:50 UTC (current forecast)

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