June in Midvale is the sunniest month of the year. In June, the weather in Midvale is typically warm. Average daily high temperature in June is about 24 degrees above zero. On average, Midvale has 26 sunny, 3 partly cloudy, and 1 rainy day in June. The rains are usually light. June as well as September is considered the most comfortable time to visit Midvale.