July in Cadillac is the sunniest and the warmest month of the year. In July, the weather in Cadillac is typically warm. Average daily high temperature in July is about 24 degrees above zero. On average, Cadillac has 17 sunny, 7 rainy, and 7 partly cloudy days in July. The rains are usually moderate. July as well as August and September is considered the most comfortable time to visit Cadillac.