Environment Canada says it will be another Ottawa weekend marked by a mix of sunshine and rain. According to Environment Canada’s weather forecast, Saturday will be bright and sunny with a temperature high of 25 C. In the evening, expect showers with a risk of thunderstorms. Overnight, the temperature will drop to a low of 18 C. Sunday’s forecast predicts a cloudy day with a few showers early in the day and a high of 25 C. On Monday, expect a sunny day and a temperature high of 19 C. On Tuesday, expect a chance of showers and a high of 23 C.