Brockville — Today, cloudy with 40 percent chance of flurries this morning. Flurries beginning this morning. Local amount 2 to 4 cm. Wind becoming southwest 20 km/h gusting to 40 this morning. High minus 1. Wind chill is minus 20 this morning and minus 6 this afternoon.
Tonight, partly cloudy with a 40 percent chance of flurries early this evening. Wind up to 15 km/h. Low minus 14. Wind chill is minus 6 this evening and minus 20 overnight.
Sunday, a mix of sun and cloud. Clearing early in the afternoon. Wind up to 15 km/h. High minus 12. Wind chill near minus 22. 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