Active Weather Alerts
Heat Warning
Issued: 6:40 PM Jun. 21, 2025 – Environment and Climate Change Canada
The first significant heat event of the season with dangerously hot conditions will continue through early to mid week. What: Daytime highs of 31 to 36 degrees Celsius. Humidex values of 40 to 45. Overnight lows of 21 to 25 degrees Celsius, providing little relief from the heat. When: Now through early to mid week. Additional information: ### 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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