July weather forecast in Lyons

July in Lyons is the rainiest, the cloudiest, and the hottest month of the year. In July, the weather in Lyons is typically hot. Average daily high temperature in July is about 32 degrees above zero. On average, Lyons has 19 rainy, 6 sunny, and 6 partly cloudy days in July. The rains are usually heavy. July as well as August is considered the most uncomfortable time to visit Lyons.