February in Twin Falls is the cloudiest month of the year. In February, the weather in Twin Falls is typically cold. Average daily high temperature in February is about 5 degrees above zero. On average, Twin Falls has 14 partly cloudy, 7 sunny, 4 rainy, and 4 cloudy days in February. The rains are usually light. February as well as January, March, and December is considered the most uncomfortable time to visit Twin Falls.