South Branch Kishwaukee River at De Kalb

1. 17.50 ftBethany Road threatened.
2. 16.00 ftMultiple structures threatened at Northern Illinois University. DeKalb Sanitary District property threatened.
3. 15.50 ftColtonville Road threatened north of DeKalb. Park Avenue (IL-72) and Madison Avenue may be threatened in Genoa.
4. 15.00 ftAnnie Glidden Road threatened near Taylor Street.
5. 14.50 ftRoadways and structures threatened at Edgebrook Mobile Home Park. First Street threatened.
6. 14.00 ftIL-64 is threatened west of Sycamore.
7. 13.50 ftFlood waters overtop levee north of Hillcrest Street in DeKalb.
8. 13.00 ftWater overtops the levee at the east lagoon at Northern Illinois University. Castle Drive and Lucinda Avenue threatened.
9. 12.50 ftA few structures threatened at Northern Illinois University.
10. 12.00 ftLow-lying portions of River Heights Golf Course inundated.
11. 11.00 ftClifford Drive is threatened near Prairie Park in DeKalb. Creek Court threatened south of DeKalb.
12. 10.50 ftResidences threatened near the river on Taylor Street. Fairview Drive is threatened near the river south of DeKalb.
13. 9.00 ftTaylor Street is threatened. Low-lying portions of Lions Park inundated in DeKalb.
14. 8.50 ftWater overtops low-lying banks in DeKalb.
15. 7.50 ftGurler Road threatened southwest of DeKalb.
16. 6.00 ftDeKalb Nature Trail is threatened near and south of Lincoln Highway.

Chance of flooding, September to November

The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 25, 2026.

Most recent crests

• July 16, 2024: 7.89 ft
• May 15, 2020: 11.25 ft
• March 29, 2020: 8.61 ft
• September 13, 2019: 7.38 ft
• March 10, 2019: 8.22 ft
• February 20, 2018: 8.15 ft
• May 1, 2017: 7.71 ft
• May 12, 2016: 10.70 ft
• June 16, 2015: 9.52 ft
• March 12, 2014: 7.92 ft

• DownstreamSouth Branch Kishwaukee River at Fairdale
• Ferson Creek at St Charles
• Mill Creek (IL) at Batavia
• Kishwaukee River at Perryville
• Kishwaukee River at Belvidere
• Blackberry Creek at Montgomery
• Blackberry Creek at Yorkville
• Fox River at South Elgin Dam

Forecasts by the North Central River Forecast Center. Forecasts are issued as needed during times of high water, but are not routinely available. River forecasts for this location take into account past and future precipitation. The stages/flows that will occur may be different if future rainfall is different than forecast.

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.