Sunshine and warm temperatures expected in Ottawa this week, with smoke drifting in on Saturday

The Rideau Canoe Club can be seen along the shore of the Rideau River across from Mooney's Bay in Ottawa on July 28, 2025. (CTV News Ottawa)

Sunshine and warm temperatures are in the forecast for the August long weekend, but smoke from wildfires in northern Ontario and western Canada is expected to drift into the national capital region on Saturday.

Environment Canada’s forecast calls for a high of 24 C on Friday, then 28 C on Saturday, 31 C on Sunday and 29 C on Monday.

The normal temperatures for this time of year are a high of 26 C and a low of 16 C.

It will be mainly sunny today. High 24 C.

Clear tonight. Low 11 C.

Saturday will be sunny. Environment Canada says there will be “local smoke” late in the morning and in the afternoon. High 28 C, with the humidex making it feel like 30.

According to firesmoke.ca, smoke from wildfires will drift into Ottawa early Saturday morning.

The air quality index is expected to be “5-moderate risk” on Saturday.

Sunshine on Sunday for the Ironman Canada-Ottawa triathlon. High 31 C.

The outlook for Monday calls for a mix of sun and cloud. High 29 C.

Tuesday will see a mix of sun and cloud. High 29 C.