In February, the weather in Rexburg is typically cold. Average daily high temperature in February is about 1 degree above zero. On average, Rexburg has 11 partly cloudy, 8 sunny, 6 cloudy, 3 snowy, and 1 rainy day in February. The snowfalls are usually light. February as well as January, March, April, and November is considered the most uncomfortable time to visit Rexburg.