Weather Forecast and Radar for Monticello, Illinois

Weather in Monticello, IL

Monticello, Illinois, located in the Midwest, experiences all four seasons. The summers in Monticello are usually hot and humid with temperatures ranging from the low 70s to the high 90s. Occasional thunderstorms can bring cooler air and rainfall during the summer months. Winters in Monticello are cold with temperatures that can drop as low as the single digits and highs that rarely exceed the mid-40s. Snowfall is typical throughout the winter, but snow accumulation is generally low and melts quickly. Spring and fall in Monticello are mild with temperatures ranging from the mid-40s to the mid-70s. Rainfall is common during these transitional seasons.

Fast Facts About Monticello, IL

As of 2020, the city population is 5815.

Major Cities Nearby Monticello, IL

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