Active Weather Alerts
Yellow Advisory - Frost
Issued: 3:05 PM Sep. 20, 2026 – Environment and Climate Change Canada
Freezing temperatures with frost are expected tonight. Patchy frost is expected early Monday morning as temperatures fall to near the freezing mark. Patchy frost is possible early Tuesday morning as well. ### Damage to plants, trees, and crops is possible. 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 social media using #ONStorm.
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