Brockville — Today, cloudy with 60 percent chance of showers. Risk of a thunderstorm this afternoon. Wind northwest 20 km/h gusting to 40 becoming southwest 20 this afternoon. High 22°C. Humidex 25. UV index 5 or moderate.
Tonight, mainly cloudy with 60 percent chance of showers and risk of a thunderstorm. Low 14°C.
Sunday, a mix of sun and cloud with 60 percent chance of showers. Risk of a thunderstorm in the afternoon. Wind becoming southwest 20 km/h in the afternoon. High 23°C. Humidex 28. UV index 7 or high.
Your 5-day local forecast:
More Stories
Good Morning, Brockville, Leeds-Grenville! Local Weather Update – Sunday, November 1, 2026
VIDEO Highlights: Tikis Back on Track After Winning 5-2 Over the Perth Blue Wings Friday Night in EOJHL
Tonight’s Halloween Forecast as of 4:00pm october 31, 2026