July in Rouyn-Noranda is the warmest month of the year. In July, the weather in Rouyn-Noranda is typically warm. Average daily high temperature in July is about 21 degrees above zero. On average, Rouyn-Noranda has 14 rainy, 6 sunny, 6 cloudy, and 5 partly cloudy days in July. The rains are usually heavy.