Weather Forecast and Radar for Mount Vernon, Illinois

Weather in Mount Vernon, IL

Mount Vernon, Illinois has a humid continental climate, which means the area experiences four distinct seasons throughout the year. In the summer months, temperatures range from an average low of 64°F to an average high of 87°F. This can be oppressive, as the area often experiences high humidity levels and the occasional thunderstorm. During the spring, temperatures range from an average low of 43°F to an average high of 68°F. Although the temperatures are mild, the area still experiences periods of rain.

In fall, temperatures range from an average low of 39°F to an average high of 66°F. The area experiences some rain, but there are also periods of clear weather. The winter months bring temperatures ranging from an average low of 27°F to an average high of 49°F. The area experiences cold temperatures, but usually does not experience heavy snowfall.

Fast Facts About Mount Vernon, IL

As of 2020, the city population is 14769.

Major Cities Nearby Mount Vernon, IL

This map shows the current & 7-day weather forecast, weather alerts, and weather radar for Mount Vernon, Illinois.