Hometown TV12 Brockville

Information Portal for Brockville & Surrounding Area

Good Morning, Brockville, Leeds-Grenville! Local Morning Weather Update – Monday, July 13, 2026

YELLOW WARNING – HEAT WARNING: A heat event begins today and ending either Wednesday evening or Thursday evening. Maximum temperatures of 30 to 37 degrees Celsius. Minimum temperatures of 20 to 24 degrees Celsius. Humidex values of 38 to 45.

(Weather photo courtesy of the city webcam from this morning in Brockville.)

BrockvilleToday, sunny this morning and early this afternoon then a mix of sun and cloud with 30 percent chance of showers this afternoon. Risk of thunderstorms this afternoon. Local smoke this morning. Wind becoming southwest 20 km/h this morning. High 31. Humidex 36. UV index 8 or very high.

Tonight, partly cloudy with 30 percent chance of showers this evening and after midnight. Becoming clear overnight. Risk of thunderstorms this evening and after midnight. Wind southwest 20 km/h. Low 21.

(Weather photo courtesy of Rockport Cruises webcam from this morning in Rockport.)

Tuesday, sunny. Wind southwest 30 km/h gusting to 50. High 35. Humidex 42. UV index 9 or very high.

(Weather photo courtesy of the city webcam from this morning in Brockville.)

Your 5-day local forecast:

(Weather photo courtesy of Rockport Cruises webcam from this morning in Rockport.)

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