Brockville — Today, periods of rain ending this afternoon then cloudy with 40 percent chance of showers. Amount 10 to 15 mm. Wind becoming southeast 20 km/h then west 30 gusting to 50 late this morning. High 18°C with temperature falling to 11°C this afternoon. UV index 2 or low.
Tonight, cloudy with 40 percent chance of showers this evening and after midnight. Wind northwest 30 km/h gusting to 60. Low 0°C.
Saturday, clearing late in the morning. Wind northwest 30 km/h gusting to 50 becoming light in the morning. High 7°C. UV index 2 or low.
Your 5-day local forecast:
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Good Morning, Brockville, Leeds-Grenville! Local Weather Update – Thursday, October 15, 2026