February in Lewiston is the cloudiest month of the year. In February, the weather in Lewiston is typically cold. Average daily high temperature in February is about 5 degrees above zero. On average, Lewiston has 20 rainy, 7 cloudy, and 2 sunny days in February. The rains are usually moderate. February as well as January, March, April, and November is considered the most uncomfortable time to visit Lewiston.