Sangamon River at Decatur, IL
River level and flood forecast · Macon County
Normal2.1 ftas of Mon 2:45 PM
Flow: 23 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Sun, Dec 31, 6 PM. Forecasts change as rain falls and as upstream water arrives.
Highest crests on record
- 24.43 ft — September 14, 2008
- 24.33 ft — May 12, 2002
- 23.89 ft — June 5, 2008
- 23.13 ft — December 29, 2015
- 23.04 ft — May 2, 1983
Recent crests: 17.28 ft (August 20, 2026) · 16.75 ft (June 18, 2026) · 14.1 ft (April 28, 2026) · 12.2 ft (July 16, 2024) · 15.08 ft (January 28, 2024)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (DCRI2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.