Some light rain is expected in Ottawa all day Wednesday, but the temperature is expected to be higher than average. The weather forecast from Environment Canada calls for a high of 18 C on Wednesday, about four degrees warmer than the usual high for this time of year. There is a 30 per cent chance of showers in the morning, becoming a 70 per cent chance in the afternoon with a risk of a thunderstorm. Expect a 40 per cent chance of showers in the evening and overnight with a low of 8 C, which is about three degrees above the average. Thursday’s forecast is mainly cloudy with a 40 per cent chance of showers and a high of 16 C. Friday’s outlook is cloudy with a 40 per cent chance of showers and a high of 15 C. Sunshine is expected to return by the weekend.