August in Hershey is the sunniest month of the year. In August, the weather in Hershey is typically warm. Average daily high temperature in August is about 26 degrees above zero. On average, Hershey has 18 sunny, 7 partly cloudy, and 6 rainy days in August. The rains are usually moderate. August as well as September is considered the most comfortable time to visit Hershey.