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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Canada Perspective Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.
Keep an umbrella handy tomorrow near Scarborough—a cool, showery day is expected as a low-pressure system drifts south of Lake Ontario, with temperatures several degrees below the seasonal average according to the live forecast above.
What will the weather feel like tomorrow?
Expect a damp and grey morning across Scarborough, with rain tapering to scattered showers by midday. The live forecast above shows a northeast breeze off the lake adding a chill, so a light jacket will be useful. Those checking the scarborough weather environment canada data will see similar conditions in the official warnings.
How does this compare to the longer-range outlook?
Tomorrow’s cooldown is a short break—the scarborough weather 30 days trend shows a return to milder temperatures later in the week. For finer detail, the weather network scarborough 7 day forecast and the weather network scarborough 14 days outlook both indicate a turn toward sunnier skies by the weekend. The weather in scarborough ontario tomorrow hourly can be tracked on our Toronto Weather page.
Should I expect any lake-effect rain overnight?
Light lake-effect showers are possible near the shoreline as cool air passes over Lake Ontario, but significant accumulation is unlikely. Most areas will see drizzle or brief showers, tapering before dawn.
How reliable is the 14-day forecast for Scarborough?
Beyond 7 days, weather patterns become less certain. The weather network scarborough 14 days outlook offers a useful trend but should be checked again closer to the date. Our Canada weather hub links to Environment Canada’s official updates for the most reliable short-term data.
Will tomorrow’s rain affect travel on the 401 or GO Transit?
Wet roads and reduced visibility may slow travel during the morning rush. Allow extra time if commuting through Scarborough. No major hazards are expected, but check Weather Warning pages for any updates.