Hometown TV12 Brockville

Information Portal for Brockville & Surrounding Area

Good Morning, Brockville, Leeds-Grenville! Local Weather Update – Tuesday, August 11, 2026

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

BrockvilleToday, a mix of sun and cloud. 40 percent chance of showers this afternoon with risk of a thunderstorm. Wind becoming northwest 20 km/h gusting to 40 late this morning. High 26°C. Humidex 31. UV index 7 or high.

Tonight, partly cloudy with 40 percent chance of showers this evening. Becoming clear overnight. Risk of a thunderstorm this evening. Low 14°C.

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

Wednesday, sunny early in the morning then a mix of sun and cloud with 30 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. Wind becoming west 20 km/h gusting to 40 late in the morning. High 26°C. Humidex 29. UV index 7 or high.

(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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