
Brockville — Today, mainly cloudy. 40 percent chance of showers this morning. High 17°C. UV index 3 or moderate.
Tonight, partly cloudy. Low 9°C.

Sunday, sunny. Wind becoming southeast 20 km/h gusting to 40 near noon. High 24°C. Humidex 27. UV index 4 or moderate.
Your 5-day local forecast:




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Good Morning, Brockville, Leeds-Grenville! Local Morning Weather Update – Thursday, June 25, 2026