Upper Iowa River at Decorah, IA

Winneshiek County, Iowa · USGS gauge 05387500 · NWS DEHI4 · Upper Iowa River flood status · Iowa river levels

Is Upper Iowa River at Decorah, IA flooding right now?

Upper Iowa River at Decorah, IA measured 1.76 ft on 2026-09-11 00:45:00 UTC. That observation was 10.2 ft below its 12 ft flood stage. This is the latest available reading, not a guarantee of current conditions.

Gauge height
1.76 ft
as of 85 min ago
Streamflow
165 cfs
data refreshed 8 min ago

Minor flooding here begins at 12 ft, with major flooding at 14 ft. The highest crest on record was 17.9 ft on Mon, Jun 9, 2008.

Streamflow outlook

NOAA National Water Model forecast, issued 14 hours ago. The NWM models discharge for every river reach in the country, including the many gauges the National Weather Service does not forecast individually. It is a model, not an official NWS river forecast, and it predicts flow rather than water level.

Flood stages at this gauge

CategoryStageCurrent distance
Action9 ft7.2 ft below
Minor flood12 ft10.2 ft below
Moderate flood13 ft11.2 ft below
Major flood14 ft12.2 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
17.9 ft2008-06-09
14.35 ft1993-08-17
13.68 ft2016-08-24
13.08 ft1961-03-27
12.31 ft2000-06-01

Nearby gauges

GaugeDistanceCounty
Upper Iowa River at Bluffton, IA8.8 miWinneshiek County
Turkey River at Spillville, IA10.3 miWinneshiek County
Upper Iowa River at Kendallville, IA15.3 miWinneshiek County
Upper Iowa River near Dorchester, IA16.5 miAllamakee County
Turkey River near Eldorado, IA17.3 miFayette 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