A bright, sunny sky is in store for Ottawa this Tuesday. Environment Canada’s weather forecast for the capital calls for a high of 29 C with a humidex of 35. The UV index is 8, or very high. Tuesday evening is looking clear, with a low of 18 C overnight. Wednesday’s forecast is mainly sunny with a high of 30 C and a humidex of 37. Clouds return Thursday, bringing a 40 per cent chance of showers and a high of 29 C. Friday’s outlook is mainly cloudy with a 30 per cent chance of showers and a high of 27 C. Saturday is looking sunny, but Sunday could be cloudy.