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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.
Live data from Open-Meteo · updates automatically ·
Tomorrow across southern Ontario, expect a mix of sun and cloud for Toronto and the surrounding GTA, with a high near 24°C and a chance of late-afternoon showers pushing in from Lake Ontario. The rest of Canada sees a cooler, damp start for the Prairies and a warm, dry day for the West Coast.
How will temperatures feel across the GTA tomorrow?
For those checking weather tomorrow near Scarborough, the lake breeze will keep readings a degree or two cooler than inland spots. In Mississauga and Brampton, expect a similar pattern: morning low near 14°C, afternoon high near 25°C, and a 40% chance of a passing shower by evening. North York and Ajax share that same risk, while Burlington and Milton will see slightly more sunshine before the clouds build. The humidity will be moderate, making it feel comfortable for most outdoor plans.
Are any weather warnings in effect for tomorrow?
No significant warnings are posted for southern Ontario as of this update. However, the live conditions above show patchy fog possible in low-lying areas around the Lake Ontario shoreline early tomorrow morning. Elsewhere in Canada, a low-pressure system over the Prairies may trigger a severe thunderstorm watch for parts of Manitoba; check the Weather Warning page for regional alerts.
Will it rain in Milton tomorrow?
Milton has about a 30% chance of an isolated shower in the late afternoon, similar to the rest of the GTA. Most of the day remains dry with intervals of sun, so a light jacket should be enough.
What is the UV index for Toronto tomorrow?
The UV index is forecast at 6 (high) during peak hours, 11 a.m. to 3 p.m. Sun protection is recommended, especially if you’re spending time near the lake or in open parks.
How windy will it be near Lake Ontario in Burlington?
Burlington will see a west-southwest wind at 15–20 km/h, with gusts up to 30 km/h near the shoreline. Boaters and shoreline walkers should be mindful of choppy conditions.
Sources
For a broader outlook across the country, visit Weather Forecast Canada or Weather Today for hourly updates.