Heat Warning Issued for Brockville, Leeds-Grenville! Dangerous heat and humidity beginning this afternoon!
Brockville – Today is mainly cloudy with a 40 percent chance of showers early this morning, with a risk of a thunderstorm. Wind becoming northwest 20 km/h gusting to 40 this morning, then light this afternoon. Today’s high is 32, and the humidex is 42. The UV index is 9 or very high.
Tonight will be partly cloudy. Wind is becoming south 20 km/h before morning. Tonight’s low is 21.
Monday, clearing late in the morning, then a mix of sun and cloud. Wind southwest 30 km/h gusting to 50. Monday’s high is 34, and the humidex is 42. UV index 10 or very high.
Your 5-day local forecast:
More Stories
Y Communities Thrive: YMCA of Eastern Ontario Launches 2026 Annual Campaign
Good Morning, Brockville, Leeds-Grenville! Local Morning Weather Update – Thursday, April 23, 2026
Annual Prescott Spring Home & Trade Show Begins Thursday at the Leo