Iowa River at Marshalltown, IA

Marshall County, Iowa · USGS gauge 05451500 · NWS MIWI4 · Iowa River flood status · Iowa river levels

Nearby: river levels near Marshalltown

Is Iowa River at Marshalltown, IA flooding right now?

Iowa River at Marshalltown, IA measured 9.82 ft on 2026-09-11 01:00:00 UTC. That observation was 9.2 ft below its 19 ft flood stage. This is the latest available reading, not a guarantee of current conditions.

Gauge height
9.82 ft
as of 70 min ago
Streamflow
260 cfs
data refreshed 8 min ago

Minor flooding here begins at 19 ft, with major flooding at 26 ft. The highest crest on record was 22.25 ft on Wed, Jul 2, 2014.

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
Action14 ft4.2 ft below
Minor flood19 ft9.2 ft below
Moderate flood23 ft13.2 ft below
Major flood26 ft16.2 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
22.25 ft2014-07-02
22.08 ft2013-05-30
21.79 ft2008-06-13
20.77 ft1993-08-17
20.38 ft1990-06-18

Nearby gauges

GaugeDistanceCounty
Timber Creek near Marshalltown, IA4.8 miMarshall County
Iowa River at County Highway E49 near Tama, IA15.6 miTama County
South Fork Iowa River NE of New Providence, IA21.3 miHardin County
Richland Creek near Haven, IA25.0 miTama County
Iowa River at Steamboat Rock, IA25.1 miHardin 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