July in Menomonie is the sunniest and the warmest month of the year. In July, the weather in Menomonie is typically warm. Average daily high temperature in July is about 26 degrees above zero. On average, Menomonie has 21 sunny, 7 partly cloudy, and 3 rainy days in July. The rains are usually heavy. July as well as August and September is considered the most comfortable time to visit Menomonie.