The above-seasonal temperatures will continue into the weekend in Ottawa, but there is a risk of rain over the next five days. Ottawa has seen temperatures hit 20 C over the past two days, including 20.2 C on Thursday. Environment Canada’s forecast calls for a mainly cloudy day today with a 60 per cent chance of showers this afternoon. High 15 C. It will be cloudy tonight with a 60 per cent chance of showers. Low 8 C. The mainly cloudy conditions will continue on Saturday. There is a 60 per cent chance of showers. High 10 C. Sunday will see a mix of sun and cloud with a chance of showers. High 9 C. The outlook for Monday and Tuesday calls for a mix of sun and cloud with a 30 per cent chance of showers on both days. The high will be 7 C on Monday and 10 C on Tuesday. The normal temperatures for this time of year are a high of 7 C and a low of -1 C.