Brockville – Tonight is clear. Increasing cloudiness this evening, then 60 percent chance of showers late this evening and overnight. Risk of a thunderstorm late this evening and overnight. Wind west 30 km/h gusting to 6,0 becoming light late this evening. Low 21°C.
Friday will be cloudy with a 40 percent chance of showers in the morning. High 28°C. Humidex 37. UV index 7 or high.
Friday night will be clear with a low of 15°C.
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Good Evening, Brockville, Leeds-Grenville! Local Weather Update – Friday, March 6, 2026