The weather should be mostly pleasant in Ottawa on Sunday, with a mix of both sun and clouds and temperatures in the mid-20s; however, the weekend will ultimately conclude with a chance of showers. According to Environment Canada’s weather forecast, Sunday’s temperature will reach a high of 25 C, and the humidex will hit 33. Expect a mix of sun and clouds throughout the day. Starting around 8 p.m., there is a 40 per cent chance of rain. Overnight, the temperature will dip to 12 C. On Monday, expect a high of 18 C and a mix of sun and clouds. Tuesday will be cloudy with a temperature high of 20 C. On Wednesday, expect a sunny day with a temperature high of 23 C.