Ottawa can expect a cloudy day with a risk of showers on Monday as September nears its end. Environment Canada’s weather forecast for the capital calls for a high of 19 C on Monday afternoon with a 40 per cent chance of showers. The evening is looking mainly cloudy with a 40 per cent chance of showers and a low of 10 C overnight. Tuesday’s forecast is mainly sunny with a high of 20 C. It’s looking sunny and warm on Tuesday, the National Day for Truth and Reconciliation. The high is 23 C. Thursday’s outlook is cloudy with a 30 per cent chance of showers and a high of 23 C to usher in October.