Active Weather Alerts
Orange Warning - Heat
Issued: 8:55 PM Jul. 1, 2026 – Environment and Climate Change Canada
A long duration heat event continues. For some areas, this is the first heat event of the season. What: Maximum temperatures of 31 to 35 degrees Celsius, and potentially up to 37 degrees Celsius for some areas. Minimum temperatures of 21 to 25 degrees Celsius. When: Continuing through Friday, and possibly into the weekend. Additional Information: The hottest conditions are expected to continue into Thursday, with maximum temperatures of 35 to 37 degrees Celsius expected. Minimum temperatures of 21 to 25 degrees Celsius will provide little relief from the heat. Hot and humid air can also bring deteriorating air quality and can result in the Air Quality Health Index approaching the high-risk category. ### 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.
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