South Fork Sangamon River near Rochester, IL
River level and flood forecast · Sangamon County
Normal5.2 ftas of Mon 2:45 PM
Flow: 6 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
- 36.68 ft — December 29, 2015
- 32.55 ft — May 13, 2002
- 32.4 ft — April 14, 1994
- 31.92 ft — April 14, 1979
- 30.79 ft — February 26, 1985
Recent crests: 18.78 ft (June 25, 2026) · 15.81 ft (June 12, 2026) · 22.67 ft (May 2, 2026) · 15.74 ft (May 21, 2025) · 18.91 ft (April 11, 2025)
Up and down the river, and nearby
- South Fork Sangamon River below Rochester - AUX, IL
- Sugar Creek (W-Central IL) near Springfield, IL
- Sangamon River at Riverton, IL
- Spring Creek (IL) at Springfield, IL
- Sangamon River near Springfield, IL
- Lake Fork (Central IL) near Cornland, IL
- Sangamon River at Petersburg, IL
- Salt Creek (IL) near Greenview, IL
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (ROCI2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.