Daily Forecast: July 31, 2025

Thursday will bring cooler temperatures to the region, along with lower humidity.

Some rain is expected during the morning hours tomorrow in Southwestern Ontario and the GTA. Central Ontario will see mainly sunny skies, while Eastern Ontario sees mainly cloudy skies.

Wildfire smoke has moved into much of the region and will affect air quality overnight and through part of Thursday. Special Air Quality Statements have been issued across the region. Air quality will improve from north to south tomorrow. Watch for symptoms of air pollution and avoid time outdoors until air quality improves.

All Heat Warnings have now ended across the region.

Temperatures in red represent forecasted humidex values.