Brockville — Today is sunny. Wind becoming southwest 20 km/h gusting to 40 near noon. High 32. Humidex 40. UV index 9 or very high.
Tonight, a few clouds. Wind southwest 20 km/h gusting to 40, becoming light late this evening. Low 21.
Tuesday will be a mix of sun and clouds. Clearing near noon. High 31. Humidex 37. UV index 9 or very high.
Your 5-day local forecast:
More Stories
YELLOW WARNING – AIR QUALITY – SMOKE WARNING for Our Region
YELLOW WATCH – SEVERE THUNDERSTORM Watch for Brockville & Leeds-Grenville for This Afternoon & Early Evening
Good Morning, Brockville, Leeds-Grenville! Local Morning Weather Update – Saturday, July 18, 2026