In March, the weather in Montrose is typically warm. Average daily high temperature in March is about 10 degrees above zero. On average, Montrose has 13 sunny, 9 partly cloudy, 5 rainy, 3 cloudy, and 1 snowy day in March. The rains are usually light. March as well as January, February, November, and December is considered the most uncomfortable time to visit Montrose.