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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.
Live data from Open-Meteo · updates automatically ·
Mississauga’s weather today, as shown in the live forecast above, is typical for a spring day in the Greater Toronto Area: expect a mix of clouds and sun with a chance of showers, and temperatures near seasonal norms. The real story is how quickly conditions can shift as lake breezes off Lake Ontario influence the city’s microclimate.
What’s driving today’s conditions in Mississauga?
A trough of low pressure moving across southern Ontario is interacting with a cooler airmass over the lake, creating scattered showers that may be light and brief. Winds will be southwesterly at 20 to 30 km/h, gusting a bit higher near the shoreline. The UV index is moderate, so if you’re stepping out for a walk along the Credit River or Port Credit, a light jacket and an umbrella are sensible.
How does Mississauga’s weather differ from downtown Toronto?
While Mississauga shares the same regional weather pattern, its position further from the lake’s immediate fetch means it can be a couple of degrees warmer on a spring afternoon than lakeside Toronto neighbourhoods. That said, the city’s sprawling suburban layout can also trap heat in paved areas, making the evening cool-down less pronounced. For a broader look at conditions across the region, see our Toronto Weather page.
Will the showers last all day in Mississauga?
No, the showers are tied to the passing trough and should diminish by mid-afternoon. Skies will become partly cloudy, with a drier evening expected. Keep an eye on the live forecast above for any updates.
Is there any risk of severe weather in Mississauga today?
No severe weather is expected. The system is weak and fast-moving. Thunderstorm risk is near zero. If conditions shift, we’ll publish updates on our Weather Warning page.
How does today compare to Mississauga’s spring average?
Today’s high is near the seasonal norm of 12°C. The chance of showers is a little above average due to the trough, but no records are threatened. For a full seasonal outlook, see our Canada weather hub.