Brockville — Today, cloudy with 30 percent chance of showers early this morning. Clearing this afternoon. Fog patches dissipating this morning. Wind north 20 km/h becoming light this morning. High 18°C. UV index 5 or moderate.
Tonight, clear. Fog patches developing overnight. Low 7°C.
Saturday, sunny, increasing cloudiness early in the afternoon then showers. Fog patches dissipating in the morning. Wind becoming south 30 km/h gusting to 50 late in the morning. High 22°C. Humidex 25. UV index 7 or high.
Your 5-day local forecast:
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Good Morning, Brockville, Leeds-Grenville! Local Morning Weather Update – Wednesday, May 13, 2026