Weather Forecast and Radar for Peoria, Illinois

Weather in Peoria, IL

Peoria, Illinois, United States experiences four distinct seasons throughout the year. In the spring, temperatures average around 50 degrees Fahrenheit (10 degrees Celsius) but can reach highs of over 80 degrees Fahrenheit (26 degrees Celsius) in late spring. The summer months are hot and humid, with temperatures reaching up to 90 degrees Fahrenheit (32 degrees Celsius). The fall months are mild, with temperatures averaging around 50 degrees Fahrenheit (10 degrees Celsius) in the day and dropping to around 35 degrees Fahrenheit (2 degrees Celsius) in the night. Winter is cold and snowy, with temperatures averaging around 20 degrees Fahrenheit (-6 degrees Celsius) and lows of 0 degrees Fahrenheit (-18 degrees Celsius).

Fast Facts About Peoria, IL

As of 2020, the city population is 253461.

Major Cities Nearby Peoria, IL

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