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