Patchy frost is expected tonight.
Temperatures are expected to fall to near the freezing mark for areas inland from the Great Lakes. Light to moderate southwesterly winds overnight may prevent frost formation in some areas.
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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.