July weather forecast in Hattiesburg

July in Hattiesburg is the rainiest, the cloudiest, and the hottest month of the year. In July, the weather in Hattiesburg is typically hot. Average daily high temperature in July is about 31 degrees above zero. On average, Hattiesburg has 20 rainy, 9 sunny, and 2 partly cloudy days in July. The rains are usually heavy. July as well as January and August is considered the most uncomfortable time to visit Hattiesburg.