Daily Forecast: July 4, 2025

A mainly sunny Friday is expected across the region, with some lower humidity. Many areas will be in the 20s for high temperatures.

The UV Index tomorrow is forecasted to be in the Very High category. Ensure you protect your skin by applying sunscreen frequently if outdoors.

There is the risk for a localized shower tomorrow, however the chances are relatively low. There will be a risk for thunderstorms in Extreme Southwestern Ontario during the evening hours.

Looking ahead to Saturday, a hot and humid day is expected for many areas.

Temperatures in red represent forecasted humidex values.