Weather Ottawa, ON 15°C : °C A few clouds : 2km/h SE : 101.8 kPa : 13°C : 88% : 14°C / : 22°C Tuesday morning 15°C Cloudy with sunny breaks Tuesday afternoon 22°C Risk of a thunderstorm Tuesday evening 20°C Light rain 22°C : 40% 19°C : 30% 19°C : 30% 22°C : 10%