Brockville — Today, sunny. Increasing cloudiness this afternoon, then a 30 percent chance of showers late this afternoon. Risk of a thunderstorm late this afternoon. High 29. Humidex 33. UV index 9 or very high.
Tonight, partly cloudy. 30 percent chance of showers early this evening and before morning. Risk of a thunderstorm. Low 17.
Thursday, a mix of sun and cloud with a 40 percent chance of showers and a risk of a thunderstorm. High 25. Humidex 30. UV index 7 or high.
Your 5-day local forecast:
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