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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Civic Maple 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 in Oshawa, the live forecast above shows mainly cloudy skies with a chance of light showers. Temperatures will be near the seasonal average for this time of year, with a moderate breeze. Plan for a mix of clouds and a slight risk of precipitation throughout the day.
What will the morning and afternoon feel like?
The morning will start cool and overcast, with temperatures gradually rising toward the afternoon high shown in the forecast. By midday, any showers are most likely to be light and brief. Winds will remain moderate, so dress for the breeze if you are out. For hourly details, check the weather in Oshawa tomorrow hourly section of the live information above.
Should I expect any significant weather changes?
No major storms or drastic shifts are expected. The pattern is typical for autumn in southern Ontario, with the cloud cover keeping the day stable. For a longer view, the weather in Oshawa 10 days forecast indicates a similar trend into next week. The weather network Oshawa 14 days data also suggests this brief unsettled period will pass quickly.
Will it rain heavily tomorrow in Oshawa?
Light showers are possible, but heavy rain is not expected. The chance of measurable precipitation is low according to the live forecast. Any rain will likely be brief and not disrupt outdoor plans significantly.
What is the wind speed forecast?
Winds will be moderate, generally 15–25 kilometres per hour. This is enough to feel noticeable but not strong enough to cause concerns. The exact speed is shown in the live forecast above.
How does tomorrow compare to weather in Oshawa today?
Tomorrow will be slightly cooler and cloudier than today, with a small chance of showers. The overall pattern remains similar. For a longer view, the oshawa weather 30 days outlook shows gradual cooling ahead.
Sources
For more details, visit our Canada weather hub or the Toronto weather page for regional updates. For extended planning, see Weather 10 Days.