Brockville — Today, cloudy, then clearing early this afternoon. Wind is becoming southwest 20 km/h early this afternoon. High plus 5. UV index is 1 or low.
Tonight, mainly cloudy. Wind south 20 km/h, becoming light after midnight. Low plus 2.
Tuesday, cloudy. High 8. UV index is 1 or low.
Your 5-day local forecast:
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Good Morning, Brockville, Leeds-Grenville! Local Weather Update – Monday, September 14, 2026