Brockville — Today, a mix of sun and cloud. Local smoke early this morning. Wind northeast 20 km/h. High 22. UV index 9 or very high.
Tonight, partly cloudy. Becoming clear this evening. Wind northeast 20 km/h becoming light this evening. Low 10.
Friday sunny. Wind north 20 km/h becoming light late in the morning. High 24. UV index 8 or very high.
Your 5-day local forecast:
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Good Morning, Brockville, Leeds-Grenville! Local Weather Update – Tuesday, September 1, 2026