April in Ft McMurray is the windiest and the cloudiest month of the year. In April, the weather in Ft McMurray is typically warm. Average daily high temperature in April is about 10 degrees above zero. On average, Ft McMurray has 11 partly cloudy, 7 sunny, 7 cloudy, 4 rainy, and 1 snowy day in April. The rains are usually light.