In May, the weather in Pisgah Forest is typically warm. Average daily high temperature in May is about 20 degrees above zero. On average, Pisgah Forest has 19 rainy, 8 sunny, 3 partly cloudy, and 1 cloudy day in May. The rains are usually heavy. May as well as January, February, March, and July is considered the most uncomfortable time to visit Pisgah Forest.