April in Fort MacKay is the rainiest month of the year. In April, the weather in Fort MacKay is typically cold. Average daily high temperature in April is about 5 degrees above zero. On average, Fort MacKay has 15 cloudy, 7 rainy, 4 sunny, 3 partly cloudy, and 1 snowy day in April. The rains are usually light. April as well as January, February, and December is considered the most uncomfortable time to visit Fort MacKay.