Brockville — Today, cloudy with 40 percent chance of showers this afternoon with risk of a thunderstorm. Wind becoming southwest 20 km/h this afternoon. High 26°C. Humidex 34. UV index 5 or moderate.
Tonight, showers ending after midnight then cloudy with 40 percent chance of showers. Risk of a thunderstorm this evening and overnight. Local amount 10 to 20 mm. Low 18°C.
Thursday, cloudy, becoming a mix of sun and cloud in the morning. High 26°C. Humidex 32. UV index 7 or high.
Your 5-day local forecast:
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