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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.
For most of Canada tonight, the live forecast above shows a mix of clearing skies over the Interior and a band of rain pushing into the Atlantic provinces, with temperatures dipping a few degrees below seasonal across the Prairies.
What’s the overnight outlook for my region?
In Ottawa, expect clearing skies after a damp afternoon, with lows near freezing – a typical late-winter pattern along the Ottawa River. Out west, Lethbridge sees a sharp cool-down under a starry sky, while Saint John remains cloudy and damp into the morning commute. For a detailed look at your city, check the weather in Ottawa today or the Calgary Weather page for Alberta conditions.
Will tonight bring any warnings?
Environment and Climate Change Canada has not issued widespread alerts, but pockets of freezing drizzle are possible in the Ottawa Valley. For the latest updates, see the Weather Warning page. Those planning travel in the Maritimes should also check the weather in Edmonton if connecting through western hubs.
Is it going to rain tonight in Ottawa?
Radar shows a weak system moving east of the city by midnight, leaving mainly cloudy skies with a slight chance of drizzle. The live forecast above suggests precipitation will end well before morning, making for a dry (if cool) commute.
What’s the overnight low in Lethbridge tonight?
Lethbridge can expect a low near −6°C under clear skies, with a light southerly wind. This is close to the 14‑day average for late winter – you can compare with the weather in Calgary for a similar inland profile.
Will the weather in Saint John be messy tomorrow morning?
Yes – the same system bringing rain tonight will linger into the early hours, so the morning commute could be wet. Check the weather in Ottawa tomorrow for a benchmark of how the system moves east.