In January, the weather in Ft McMurray is typically freezing. Average daily high temperature in January is about 12 degrees below zero. On average, Ft McMurray has 23 cloudy, 3 snowy, 3 sunny, and 2 partly cloudy days in January. The snowfalls are usually light. January as well as February, April, and December is considered the most uncomfortable time to visit Ft McMurray.