Thanksgiving Day is on the horizon, and Ottawa is in store for a stretch of cloudy weather and possibly showers. According to Environment Canada’s weather forecast, Sunday is expected to be mainly cloudy. The temperature will reach a high of 17 C, and overnight, it will reach a low of 9 C. Thanksgiving Monday will be cloudy with a chance of showers beginning in the afternoon. The temperature is expected to reach a high of 18 C. Tuesday will be cooler, only reaching a temperature high of 9 C, and Environment Canada predicts a chance of showers. Wednesday is expected to be cloudy with a high of 12 C.