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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Toronto Post Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Carry an umbrella tomorrow: a mix of sun and cloud gives way to a 60% chance of late-afternoon showers in Toronto, with a high near 22°C. Similar conditions stretch across the GTA, though lake breezes keep Burlington and Mississauga a few degrees cooler.
Temperature and precipitation outlook
Tomorrow’s high ranges from 20°C near Lake Ontario to 24°C inland; the low settles near 14°C. The best chance of rain arrives between 3 p.m. and 7 p.m., with brief, light showers possible in Brampton, Milton, and north of Scarborough. Winds shift from the southwest at 15–25 km/h, gusting stronger near the lake.
Regional variations across the GTA
For weather tomorrow near Scarborough and North York, expect a slightly cooler afternoon (20–21°C) due to lake influence. Weather tomorrow Brampton and weather tomorrow Milton will see the warmest readings, near 24°C, with a lower rain chance. Weather tomorrow Burlington and weather tomorrow Ajax mirror Toronto’s pattern, though Ajax may see an earlier shower. Check our detailed forecast for hourly updates.
Will it rain in Mississauga tomorrow?
Yes, a 60% chance of showers after 3 p.m., though amounts will be light (under 2 mm). The morning remains partly cloudy and dry.
Is a weather warning in effect for tomorrow?
No warnings are posted for southern Ontario. The live conditions above show clear skies currently; no significant storm systems are expected.
How accurate is this weather tomorrow forecast?
Environment Canada’s 24‑hour outlook has a typical accuracy of 85–90%. Check Canada Weather Warnings for any late-breaking changes.