The hot and humid temperatures will return for the final weekend of July, but there is a risk of rain on Sunday. Ottawa has experienced eight straight days of below seasonal daytime high temperatures. The normal temperatures for this time of year are a high of 27 C and a low of 16 C. Environment Canada’s forecast calls for increasing cloudiness today. High 27 C with the humidex making it feel like 32. It will be clear tonight. Low 13 C. Sunshine returns on Saturday. High 28 C. Sunday will see a mix of sun and cloud with a 40 per cent chance of showers. High 26 C. The outlook for Monday calls for mainly cloudy with a 60 per cent chance of showers. High 26 C. Tuesday will be cloudy with a 60 per cent chance of showers. High 26 C. The normal temperatures for this time of year are a high of 27 C and a low of 16 C.