Oshawa Monday weather is expected to be mild, with a high of 18 C and a chance of passing showers on November 2, according to Environment Canada’s forecast issued at 5 a.m. EST.
The forecast calls for a mix of sun and cloud, with a 30 per cent chance of showers during the morning and early afternoon. The UV index is 2, or low.
A mild start to the week
At Oshawa Executive Airport at 5 a.m., the reported temperature was 5.3 C under cloudy skies. Winds were from the north at 5 km/h, and visibility was 16 kilometres. Those observations describe conditions at the airport at that time, rather than conditions throughout Durham Region.
The forecast high is above the normal maximum of 8 C shown on Environment Canada’s Oshawa page. Its listed normal minimum is 1 C.
Showers remain possible overnight
Tonight is expected to be mainly cloudy, with a 40 per cent chance of showers late in the evening and overnight. The forecast low is 11 C.
Tuesday’s outlook is mainly cloudy with a 40 per cent chance of showers in the morning and early afternoon, followed by a high of 19 C. The longer-range forecast remains subject to change.
No weather alerts were displayed for Oshawa when the official forecast was checked. Residents can consult the live forecast below for subsequent updates before making outdoor plans.
Source
Environment Canada: Oshawa forecast, issued November 2, 2026, at 5 a.m. EST
Featured image: original editorial illustration, not documentary photography.




