January in Sault Ste. Marie is the snowiest and the most freezing month of the year. In January, the weather in Sault Ste. Marie is typically freezing. Average daily high temperature in January is about 5 degrees below zero. On average, Sault Ste. Marie has 13 snowy, 8 cloudy, 6 partly cloudy, 3 sunny, and 1 rainy day in January. The snowfalls are usually moderate.