From: 16/03/2026, 22:38
To: 17/03/2026, 08:03

Snow heralding a sudden return to winter.

What: 5 to 15 cm of accumulating snow, with the lowest amounts expected towards extreme eastern Ontario.

When: Tonight into Tuesday morning.

Additional information: Rain over eastern Ontario will turn to snow tonight as temperatures drop. A general snowfall of 5 to 15 cm is expected by Tuesday morning.

Travel will likely be challenging.

Prepare for quickly changing and deteriorating travel conditions.

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Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to [email protected] or post reports on X using #ONStorm.