January weather forecast in Willmar

January in Willmar is the cloudiest and the most freezing month of the year. In January, the weather in Willmar is typically freezing. Average daily high temperature in January is about 8 degrees below zero. On average, Willmar has 20 cloudy, 5 snowy, 3 sunny, and 3 partly cloudy days in January. The snowfalls are usually light. January as well as March, April, and November is considered the most uncomfortable time to visit Willmar.