Illinois State Water Survey - University of Illinois at Urbana-Champaign

State Climatologist Office for Illinois

Current Conditions

High Resolution Precipitation Maps for Illinois

Dr. Jim Angel, State Climatologist

High resolution precipitation maps based on NWS radar-estimated precipitation, adjusted using available rain gauge data. This results in 4 km (or 2.5 mile) resolution maps of precipitation. These are typically updated by 4:15 pm each day for conditions through this morning. It takes a lot of behind-the-scenes processing to make this happen. Finally, there were some changes made in the links on May 2, 2018.


24-Hours ending in the morning - click to enlarge

This Month (actual, departure, percent)

Last 7 Days (actual, departure, percent)

Last 30 Days (actual, departure, percent)

Last 90 Days (actual, departure, percent)

Year to Date (actual, departure, percent)

For other detailed precipitation reports of Illinois visit our Current Conditions page or visit the Community Collaborative Rain, Hail, and Snow network (CoCoRaHS).