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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Northern Focus Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.
London, Ontario, enjoys a humid continental climate with four distinct seasons. The live forecast above shows today’s conditions—expect a mix of sun and clouds with temperatures near the seasonal average. Check the details below for what’s ahead.
What’s the weather like today in London?
Based on the live forecast above, London is experiencing conditions typical for this time of year. Morning clouds may give way to afternoon sunshine, with a light breeze from the southwest. The temperature will hover close to the seasonal norm, making it a good day for a walk along the Thames River or a visit to Victoria Park. Keep an eye on the forecast if you’re heading out later—occasional showers are possible.
How does London’s weather change through the year?
Winters are cold and snowy, with January highs averaging around -2°C and frequent lake-effect snow from Lake Huron and Lake Erie. Summers are warm and humid, often reaching the high 20s°C, with occasional thunderstorms. Spring and fall are transitional, with mild temperatures and variable conditions. The city’s inland location means it can see sharp temperature swings when cold fronts move through.
How much snow does London get each winter?
London averages about 200 centimetres of snow per season, with lake-effect snow boosting totals, especially in areas north and east of the city. Snowfall is common from December through March, and occasional heavy squalls can reduce visibility on area highways.
When is the best time to visit London for pleasant weather?
Late spring (May–June) and early autumn (September–October) offer the most comfortable conditions, with mild temperatures and lower humidity. Summer can be hot and muggy, while winter is best for those who enjoy snow sports or cozy indoor activities.
Does London get severe thunderstorms?
Yes, especially in late spring and summer. Severe storms can bring damaging winds, hail, and heavy rain. The region is also at risk for tornadoes, though they are infrequent. Always check local alerts when storms are in the forecast.
Sources
For more weather information across Canada, visit our Canada weather hub. If you’re travelling east, check the Toronto weather page for conditions in the Greater Toronto Area.