Weather Forecast and Radar for Rock Falls, Illinois

Weather in Rock Falls, IL

Rock Falls, Illinois experiences a variety of weather throughout the year. The coldest months are typically December, January and February when temperatures average around 28°F. Snowfall can also be expected during these months.

As the seasons change, temperatures gradually increase. March to May sees temperatures range from 40°F to 70°F with moderate rainfall. The summer months of June to August are warm and humid with temperatures ranging from 70°F to 90°F.

September to November sees a decrease in temperatures again, with temperatures ranging from 50°F to 70°F. Light to moderate rainfall is common during these months.

Overall, Rock Falls experiences mild temperatures throughout the year, with temperatures rarely dropping below freezing or rising above 90°F.

Fast Facts About Rock Falls, IL

As of 2020, the city population is 8914.

Major Cities Nearby Rock Falls, IL

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