Weather Forecast and Radar for Monmouth, Illinois

Weather in Monmouth, IL

Monmouth, Illinois experiences four distinct seasons throughout the year. In the winter months (December through February), temperatures are generally in the range of 20-35 degrees Fahrenheit. Snowfall is not uncommon, with an average of 19 inches of snow per year. Spring (March through May) brings warmer temperatures, ranging from 40-60 degrees Fahrenheit. Rainfall increases during this season, with an average of 5-7 inches of rain each month. Summer (June through August) is hot and humid, with temperatures typically between 75-90 degrees Fahrenheit. Rainfall is generally lower during this time of year, with an average of 2-4 inches of rain each month. Fall (September through November) is mild and pleasant, with temperatures usually between 55-75 degrees Fahrenheit. Rainfall is slightly higher than the summer months, with an average of 3-5 inches of rain each month.

Fast Facts About Monmouth, IL

As of 2020, the city population is 8837.

Major Cities Nearby Monmouth, IL

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