July weather forecast in Mississauga

July in Mississauga is the sunniest and the warmest month of the year. In July, the weather in Mississauga is typically warm. Average daily high temperature in July is about 26 degrees above zero. On average, Mississauga has 11 rainy, 11 sunny, 7 partly cloudy, and 2 cloudy days in July. The rains are usually heavy.