Active Weather Alerts
Heat Warning
Issued: 9:24 AM Jul. 29, 2025 – Environment and Climate Change Canada
A multi-day period of heat and humidity continues. What: Daytime high temperatures of 30 to 32 degrees Celsius. Humidex values of 38 to 41. When: Today and ending tonight. Additional information: Daytime high temperatures are expected to lower on Wednesday, bringing an end to the heat event. ### Heat warnings are issued when very high temperature or humidity conditions are expected to pose an elevated risk of heat illnesses, such as heat stroke or heat exhaustion. 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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