Ottawa will experience a sunny day today, before cooler temperatures and cloudy conditions arrive for the weekend. Environment Canada’s forecast calls for a mainly sunny day on Thursday. High 5 C. It will be partly cloudy tonight. Low -2 C with the wind chill making it feel like -6. Friday will be cloudy with a 30 per cent chance of flurries or rain showers. High 4 C. Saturday will see mainly cloudy conditions with a 40 per cent chance of showers. High 5 C. The outlook for Sunday calls for mainly cloudy conditions. High 5 C. Sunshine returns on Monday. High 2 C. The normal temperatures for this time of year are a high of 5 C and a low of -2 C.