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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.
Toornto’s skies this afternoon will be shaped by the system shown in the live forecast above, with a mix of cloud and sun and a high near the mark indicated. A lake-breeze off Ontario will keep the shoreline a few degrees cooler than inland neighbourhoods.
How will the lake breeze affect my part of the city?
Neighbourhoods from Etobicoke to Scarborough that sit within a few kilometres of Lake Ontario often see a sharp temperature drop when the breeze kicks up mid-afternoon. Inland communities such as Vaughan and Markham stay warmer, but may catch a few extra clouds as the flow pushes moisture westward.
When can I expect the next chance of rain?
The live forecast above shows a low-pressure trough sliding east of the Great Lakes overnight. That keeps Toornto mainly dry through the evening, though a stray shower cannot be ruled out near the lake after midnight. Wednesday looks brighter as high pressure builds back in from the northwest.
Is the humidex expected to drop later this week?
Yes. A cooler air mass arrives Thursday behind a weak cold front, cutting the humidex back to the mid‑20s. Overnight lows will fall to around 12°C by Friday morning.
Should I expect any weather warnings for Toornto?
No warnings are in effect right now. The live forecast above shows no severe conditions. Check our weather warning page for any updates if a system develops.
How does this compare to the seasonal average for late September?
Highs this week run about 2°C above the 30‑year normal of 19°C. The lake breeze is typical for this time of year, keeping the immediate shoreline noticeably cooler than the rest of the GTA.
Sources
For a full look at conditions across the country, visit our Canada weather hub. Find the latest for Toronto Weather or check on Ottawa Weather.