Ottawa is set to receive a break from the rain over the next three days after another rainy day in the national capital. A total of 19.6 mm of rain was recorded at the Ottawa Airport on Wednesday, bringing the total rainfall for September to 55.6 mm. Ottawa only received 31.5 mm of rain in September 2025 and 44.3 mm of rain in September 2024. Environment Canada’s forecast calls for a mix of sun and cloud today. High 22 C with the humidex making it feel like 25. It will be clear tonight. Low 9 C. Friday will be sunny. High 22 C. Sunshine continues on Saturday. High 25 C. The outlook for Sunday calls for a mix of sun and cloud with a 60 per cent chance of showers. High 25 C. Monday will see a mix of sun and cloud with a 30 per cent chance of showers. High 21 C. The normal temperatures for this time of year are a high of 20 C and a low of 10 C.
