Active Weather Alerts
Heat Warning
Issued: 8:53 PM Jun. 22, 2025 – Environment and Climate Change Canada
The first significant heat event of the season with dangerously hot and humid conditions will continue today into tomorrow. What: Daytime highs of 29 to 33 degrees Celsius. Humidex values near 40. Overnight lows of 18 to 21 degrees Celsius, providing little relief from the heat. When: Now to Monday night. Additional information: A cold front is expected to push through the region Monday night, but there is some uncertainty with how far south this front will get. Should it remain farther north, the heat event may continue for Tuesday primarily for Sudbury, West Nipissing, North Bay and Espanola - Killarney regions. ### 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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