It will be a sunny and hot start to the first weekend of June in Ottawa, but you will need to keep the umbrella nearby if you’re heading outside this weekend. The temperature hit 30 C on Thursday for the first time in 2026. Environment Canada says the temperature warmed up to 30.1 C. The forecast calls for a high of 31 C today, with the humidex making it feel like 34. It will be mainly sunny today. Increasing cloudiness expected this evening with a 70 per cent chance of showers. Low 18 C. Saturday will be cloudy with a 70 per cent change of showers. There is a risk of a thunderstorm in the afternoon. High 25 C. Sunday will see a mix of sun and cloud with a 30 per cent chance of showers. High 26 C. The outlook for Monday calls for sunshine. High 26 C. Tuesday will be sunny. High 30 C. The normal temperatures for this time of year are a high of 23 C and a low of 12 C.
