Active Weather Alerts
Heat Warning
Issued: 9:37 AM Jun. 23, 2025 – Environment and Climate Change Canada
Dangerous heat and humidity continues. The first significant heat event of the season with dangerously hot and humid conditions is expected to continue into the week. What: Daytime highs of 33 to 36 degrees Celsius. Humidex values of 42 to 46. Overnight lows of 22 to 25 degrees Celsius, providing little relief from the heat. When: Now until Tuesday night. 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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