Active Weather Alerts
Heat Warning
Issued: 4:16 AM Jun. 27, 2025 – Environment and Climate Change Canada
A heat event continues today and is expected to end Monday night. What: Daytime highs of 31 to 33 degrees Celsius. Humidex values of 42 to 44. Overnight low near 21 degrees Celsius, providing little relief from the heat. When: Now until Monday night. Additional information: There will be brief relief from the extreme heat on Saturday after the passage of a cold front, though daytime highs will still remain warm near 29 degrees Celsius and humidex values near 38. ### 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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