
Brockville — Today, a mix of sun and cloud. 40 percent chance of showers this afternoon with risk of a thunderstorm. High 24°C. Humidex 26. UV index 7 or high.
Tonight, partly cloudy, 40 percent chance of showers early this evening with risk of a thunderstorm. Low 11°C.

Saturday, mainly sunny. High 25°C. Humidex 27. UV index 8 or very high.

Your 5-day local forecast:




More Stories
Good Morning, Brockville, Leeds-Grenville! Local Weather Update – Wednesday, September 30, 2026
Shelter Movers Expands Services for Gender-Based Violence Survivors Thanks to $78,800 OTF Grant from Ontario Government
VIDEO: 2026 Take Back the Night Brockville Held on Friday!