Illinois River at Henry, IL

Marshall County, Illinois · USGS gauge 05558300 · NWS HNYI2 · Illinois River flood status · Illinois river levels

Is Illinois River at Henry, IL flooding right now?

Illinois River at Henry, IL measured 17.84 ft on 2026-09-22 20:45:00 UTC. That observation was 5.2 ft below its 23 ft flood stage. This is the latest available reading, not a guarantee of current conditions.

Gauge height
17.84 ft
as of 49 min ago
Streamflow
32,400 cfs
data refreshed 3 min ago

Minor flooding here begins at 23 ft, with major flooding at 31 ft. The highest crest on record was 32.94 ft on Mon, Apr 22, 2013.

Flood forecast

NWS forecast, issued 5 hours ago. Forecasts are issued for select river points and update through the day.

Flood stages at this gauge

CategoryStageCurrent distance
Action22 ft4.2 ft below
Minor flood23 ft5.2 ft below
Moderate flood24 ft6.2 ft below
Major flood31 ft13.2 ft below

New to these numbers? What does flood stage mean? · How to read a river gauge · Why is the river rising?

Highest crests on record

StageDate
32.94 ft2013-04-22
32.67 ft1979-03-22
32.2 ft1943-05-23
32.02 ft1985-03-07
31.62 ft2020-05-21

Last 7 days

flood stage 23 ft

Past 7 days · 14.24–23.00 ft

Nearby gauges

GaugeDistanceCounty
Senachwine Creek at Chillicothe, IL13.8 miPeoria County
East Bureau Creek near Bureau, IL15.8 miBureau County
Big Bureau Creek at Princeton, IL19.4 miBureau County
Vermilion River near Leonore, IL23.2 miLaSalle County
Indian Creek near Wyoming, IL25.7 miStark County
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.

Sources: USGS monitoring location · NWS gauge & forecast