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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Civic Maple Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.
For London, Ontario, the live forecast above shows the current temperature and conditions. This area has a humid continental climate with warm summers and cold, snowy winters, so expect distinct seasonal shifts.
What is the weather for London Ontario today?
The live forecast above gives the current temperature, humidity, and wind for today. London’s weather changes quickly due to its location near the Great Lakes. Check the UV index and humidex in the live data to plan outdoor activities. For a broader view of conditions across the country, visit our Canada weather hub.
What is the weather London Ontario 7 days?
For a reliable outlook, refer to the live forecast above, which includes a 7‑day trend. London’s weather can shift from mild to snowy in winter, and from warm to stormy in summer. For an extended look, see our Weather 10 Days page.
When does London Ontario get the most rain?
June is usually the wettest month, with about 100 mm of rain. Thunderstorms are common in late spring and summer, often bringing heavy downpours in short periods.
How cold does London Ontario get in winter?
January is the coldest month, with average lows around -9°C. Wind chill can push daytime temperatures below -20°C, especially during Arctic air outbreaks. Always dress in layers and check the live forecast.
Is London Ontario prone to severe storms?
Yes, particularly in summer. The region sees thunderstorms, some with hail or tornadoes. The live forecast above and Environment Canada alerts are the best ways to stay aware of severe weather warnings.