Fairmont City Weather Today

Fairmont City is a small town located in Madison County, Illinois, United States. The town is situated at the confluence of the Mississippi and Illinois rivers. The climate in Fairmont City is generally mild and humid, with four distinct seasons. In the spring and summer months, temperatures range from the upper-50s to mid-80s Fahrenheit, while in the fall and winter months, temperatures can dip into the 20s and 30s. Rainfall is abundant throughout the year, with an average of about 36 inches annually. Snowfall is also common in the winter months, with an average of about 18 inches yearly.