Tonight, a few clouds. Increasing cloudiness overnight then 40 percent chance of showers before morning. Wind southwest 20 km/h gusting to 40 becoming light this evening. Low 18°C.
Tuesday, a mix of sun and cloud with 40 percent chance of showers. Wind becoming southwest 20 km/h in the morning. High 28°C. Humidex 33. UV index 9 or very high.
Your 5-day local forecast:
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Good Morning, Brockville, Leeds-Grenville! Local Weather Update – Tuesday, September 1, 2026