Yellow Warning - Heat

A long duration heat event is expected. This is the first heat event of the season.

What: Maximum temperatures of 30 to 33 degrees Celsius. Minimum temperatures of 20 to 23 degrees Celsius. Humidex values of 38 to 42.

When: Continuing through Friday.

Additional Information: The hottest days are expected to be Wednesday and Thursday, with maximum temperatures potentially reaching 34 degrees Celsius.

Hot and humid air can also bring deteriorating air quality and can result in the Air Quality Health Index approaching the high-risk category.

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For more information: https://www.canada.ca/en/health-canada/services/climate-change-health/extreme-heat/how-protect-yourself.html https://www.canada.ca/en/health-canada/services/climate-change-health/extreme-heat/who-is-at-risk.html

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.