It will be a mainly cloudy Monday in Ottawa with temperatures slightly below average. Environment Canada’s weather forecast for the capital calls for a high of 13 C on Monday with a 30 per cent chance of showers in the morning and afternoon. Expect a few clouds this evening with an overnight low of 1 C. The average high for this time of year is around 15 C, while the average low is closer to 5 C. Tuesday’s forecast is sunny with a high of 13 C. Wednesday is looking cloudy with a 40 per cent chance of showers and a high of 18 C. Clouds and a chance of showers are also in the forecast to round out the workweek.