March in Coeur d'Alene is the rainiest month of the year. In March, the weather in Coeur d'Alene is typically cold. Average daily high temperature in March is about 6 degrees above zero. On average, Coeur d'Alene has 27 rainy, 3 sunny, and 1 cloudy day in March. The rains are usually heavy. March as well as February, April, and November is considered the most uncomfortable time to visit Coeur d'Alene.