Daily Forecast: June 27, 2025

A mix of sun and cloud is expected across Southwestern Ontario tomorrow, while the rest of the region sees mainly cloudy skies.

Temperatures will be hot and humid tomorrow across much of the area, with the exception of Eastern Ontario. A Heat Warning is in effect for Windsor - Leamington - Essex County as criteria will be met tomorrow with forecasted humidex values of 42 to 44ºC. Temperatures are expected to be cooler on Saturday.

There will be a risk for showers and thunderstorms across the area tomorrow. Through the afternoon and evening, some thunderstorms may be strong to severe. Threats may include torrential downpours, strong wind gusts, and hail. More details will be posted tomorrow.

Temperatures in red represent forecasted humidex values.