Hometown TV12 Brockville

Information Portal for Brockville & Surrounding Area

Good Afternoon, Brockville, Leeds-Grenville! Local Weather Update – Tuesday, July 21, 2026

YELLOW WATCH – SEVERE THUNDERSTORM Watch for Our Region!

(Weather photo courtesy of Rockport Cruises webcam from this morning in Rockport.)

BrockvilleToday, mainly cloudy. 40 percent chance of showers early this afternoon. Showers beginning this afternoon. Risk of a thunderstorm this afternoon. Local amount 5 mm. Wind south 20 km/h gusting to 40. High 25°C. Humidex 30. UV index 7 or high.

Tonight, showers ending near midnight then cloudy with 40 percent chance of showers. Risk of a thunderstorm this evening. Local amount 10 to 15 mm. Wind southwest 20 km/h. Low 17°C.

(Weather photo courtesy of the city webcam from this morning in Brockville.)

Wednesday, cloudy with 40 percent chance of showers in the morning. Wind west 20 km/h gusting to 40. High 21°C. UV index 5 or moderate.

(Weather photo courtesy of Rockport Cruises webcam from this morning in Rockport.)

Your 5-day local forecast:

(Weather photo courtesy of the city webcam from this morning in Brockville.)

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