Brockville — Today, sunny, becoming a mix of sun and cloud this afternoon. Wind northwest 20 km/h. High 24°C. UV index 8 or very high.
Tonight, mainly cloudy, 30 percent chance of showers this evening. Wind north 20 km/h becoming light this evening. Wind becoming north 20 gusting to 40 before morning. Low 11°C.
Thursday, cloudy with a 30 percent chance of showers late in the morning and in the afternoon. Wind north 20 km/h gusting to 40. High 21°C. UV index 5 or moderate.
Your 5-day local forecast:
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Good Morning, Brockville, Leeds-Grenville! Local Morning Weather Update – Monday, July 13, 2026