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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Canada Edition Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.
Tonight, a cold front pushes across southern Ontario, bringing showers and a risk of thunderstorms, while Atlantic Canada stays mild under mainly cloudy skies. Environment Canada weather advisories are posted for parts of the region, with cooler air expected to arrive by morning.
What’s the forecast for southern Ontario and the Toronto area?
Southern Ontario weather warnings today cover a band from Lake Huron to the Ottawa Valley, with the heaviest rain likely near the Greater Toronto Area. Toronto itself can expect periods of rain tapering after midnight, temperatures around 12 °C, and a light northwest wind. The Toronto weather page has hourly details for commuters. Farther east, Ottawa sees a similar pattern, with lows near 10 °C and a chance of lingering showers.
A weather warning remains in effect for some southern counties until early Thursday morning.
What about the Maritimes and western Canada?
Corner Brook weather 14 day outlook shows a settled night, with cloud and a low of 8 °C – no significant rain expected. For Vancouver, a ridge of high pressure keeps skies clear and temperatures near 14 °C, though the Vancouver weather page notes a shift toward wetter conditions later this week. In Calgary and Edmonton, mostly clear skies allow temperatures to drop to around 2 °C, so a jacket will be handy.
Is there a weather warning tonight for my area?
Check the weather warning page for up-to-date alerts. As of this evening, rainfall warnings cover portions of southern Ontario, while most of western and Atlantic Canada are warning-free.
How long will the rain last in Toronto?
The rain should diminish after 2 a.m., leaving mostly cloudy skies for the morning commute. A few lingering showers are possible near Lake Ontario until dawn, but no heavy rain is expected beyond midnight.
What’s the outlook for Corner Brook this week?
Corner Brook weather 14 day shows a dry, mild pattern through the weekend, with highs near 15 °C and lows around 7 °C. No significant storms are in the forecast, though coastal fog may develop overnight.