Daily Forecast: July 16, 2025

Some rain showers are expected tomorrow for Deep Southwestern Ontario, with mainly sunny skies for the rest of the region. Clouds will increase throughout the day.

Heat Warnings continue for much of the region again this evening. Heat and humidity will continue through Thursday, before a more comfortable airmass moves into the area.

Special Air Quality Statements also continue tonight, as air quality has become poor around the GTA and Southwestern Ontario due to elevated levels of ozone. Elevated ozone levels are expected tomorrow due to hot and humid conditions, especially in the GTA and Eastern Ontario.

Some rain and thunderstorms are expected to track across Central and Eastern Ontario for Thursday, potentially bringing heavy rainfall.

Temperatures in red represent forecasted humidex values.