Oshawa Sunday weather will bring a mix of sun and cloud and a high of 16 C, according to Environment Canada’s forecast issued at 11 a.m. EST on November 1, 2026.
The forecast lists a UV index of 3, or moderate. No alerts were in effect on the city’s federal forecast page when it was checked for this report.
Clearing overnight
Tonight is expected to be partly cloudy, with clearing near midnight and a low of 5 C.
Those figures come from the updated city-specific forecast rather than the earlier regional morning bulletin. Forecast conditions can change as new information becomes available.
Monday expected to reach 18 C
Environment Canada forecasts increasing cloudiness early Monday morning and a daytime high of 18 C. Monday night is expected to have cloudy periods and a low of 9 C.
Tuesday’s outlook is cloudy with a high of 17 C. The Oshawa Sunday weather forecast is a local outlook, not a guarantee of identical conditions across every Durham Region community.
Residents making outdoor or travel plans should consult the linked official forecast for the latest conditions and any subsequent alerts.
Featured image: original conceptual editorial illustration, not documentary weather photography.
