Kishwaukee River near Perryville, IL
Is Kishwaukee River near Perryville, IL flooding right now?
Kishwaukee River near Perryville, IL measured 8.79 ft on 2026-09-22 20:30:00 UTC. That observation was 3.2 ft below its 12 ft flood stage. This is the latest available reading, not a guarantee of current conditions.
Gauge height
8.79 ft
Streamflow
2,970 cfs
Minor flooding here begins at 12 ft, with major flooding at 22 ft. The highest crest on record was 23.54 ft on Thu, Jul 18, 1996.
Streamflow outlook
Flood stages at this gauge
| Category | Stage | Current distance |
|---|---|---|
| Action | 11.5 ft | 2.7 ft below |
| Minor flood | 12 ft | 3.2 ft below |
| Moderate flood | 18 ft | 9.2 ft below |
| Major flood | 22 ft | 13.2 ft below |
Highest crests on record
| Stage | Date |
|---|---|
| 23.54 ft | 1996-07-18 |
| 20.71 ft | 1994-02-21 |
| 20.48 ft | 1979-03-21 |
| 19.76 ft | 1997-02-22 |
| 19.65 ft | 1973-04-22 |
Nearby gauges
| Gauge | Distance | County |
|---|---|---|
| Keith Creek at Eighth Street at Rockford, IL | 6.0 mi | Winnebago County |
| Rock River above Dam at Rockford, IL | 7.0 mi | Winnebago County |
| Rock River at Auburn St at Rockford | 7.3 mi | Winnebago County |
| South Branch Kishwaukee River near Fairdale IL | 7.7 mi | DeKalb County |
| Kishwaukee River at Belvidere, IL | 8.1 mi | Boone County |
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Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.