Weather Forecast and Radar for Mendota, Illinois

Weather in Mendota, IL

Mendota, Illinois has a humid continental climate with hot summers and cold winters.

Summer in Mendota typically lasts from June to September, with average temperatures ranging from 63°F (17°C) in June to 85°F (29°C) in August. The area also experiences some high humidity during this season, with average relative humidity levels of 75%.

Autumn in Mendota begins in October and lasts until late November. Average temperatures during this season range from 48°F (9°C) in October to 28°F (-2°C) in November. Relative humidity levels drop to an average of 65%.

Winter in Mendota usually lasts from December to March, with average temperatures ranging from 21°F (-6°C) in December to 39°F (4°C) in March. Relative humidity levels remain low during this season, at an average of 60%.

Spring in Mendota begins in April and lasts until May. Average temperatures during this season range from 40°F (4°C) in April to 63°F (17°C) in May. Relative humidity levels increase to an average of 70%.

Fast Facts About Mendota, IL

As of 2020, the city population is 6927.

Major Cities Nearby Mendota, IL

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