River stage
Marshalltown, Iowa River
- River level
- 12.67 ft
- Status
- Below flood stage
- 7-day change
- -1.77 ft
- Recent high
- 18.67 ft
- Recent low
- 9.73 ft
Last reported 2026-10-13 | NWS MIWI4
- 30-day change
- +2.94 ft
- Average
- 11.98 ft
- Readings
- 122
- Data span
- 122 days
- Record crest
- 22.25 ft
In brief
The Iowa River at Marshalltown, IA read 12.67 ft on Oct 13, 2026, 1.33 ft below action stage. That is 2.94 ft higher than 30 days earlier.
Source: National Weather Service gauge MIWI4
River level timeline
Stage threshold profile
Highest crests on record
| Rank | Crest | Date |
|---|---|---|
| 1 | 22.25 ft | 2014-07-02 |
| 2 | 22.08 ft | 2013-05-30 |
| 3 | 21.79 ft | 2008-06-13 |
| 4 | 20.77 ft | 1993-08-17 |
| 5 | 20.38 ft | 1990-06-18 |
| 6 | 20.38 ft | 2015-12-15 |
| 7 | 20.32 ft | 2019-03-15 |
| 8 | 20.13 ft | 2007-06-24 |
Flood crests recorded at this gauge by the National Weather Service.
What happens at each level
- 14.00 ft
Lowland flooding occurs north of town near Iowa 14.
- 15.00 ft
Water approaches the bridge crossing from the County Three Bridges Rd east of Marshalltown. Water affects agricultural land.
- 16.00 ft
Water affects the access road serving north portions of Timmons Grove County Park.
- 16.50 ft
Water affects the underside of the primary concrete support span of Iowa 14.
- 17.00 ft
Water threatens roads within Timmons Grove County Park as well as the bicycle path along 18th Ave in Marshalltown.
- 18.00 ft
Widespread agricultural and lowland flooding occur along Iowa 330 south of Albion.
- 19.00 ft
Water affects Iowa 14 north of the river as well as Iowa 330 south of Albion.
- 19.50 ft
Water affects the southbound lanes of Iowa 14 as well as Iowa 330 south of Albion.
- 20.00 ft
Water approaches the top of the concrete bridge piers of the Iowa 14 bridge.
- 20.50 ft
In Albion...water affects parts of Marsh Ave...Stanley Mill Rd and 160th St. Water threatens Iowa 330 near the Linn Creek overpass which is located west of Marshalltown...or about two miles northeast of the US 30 junction.
Written by the local National Weather Service forecast office for this exact gauge.
Frequently asked questions
Is the Iowa River flooding at Marshalltown?
No. The Iowa River at Marshalltown is at 12.67 ft, 1.33 ft below action stage.
What is the flood stage at Marshalltown?
The National Weather Service sets action stage 14 ft, minor flooding 19 ft, moderate flooding 23 ft and major flooding 26 ft.
What is the highest the Iowa River has been at Marshalltown?
The highest crest on record is 22.25 ft, on 2014-07-02.
Is the Iowa River high or low right now at Marshalltown?
At 12.67 ft it is higher than 70% of readings over the last 122 days.
Stage and flood information from the NOAA National Weather Service (gauge MIWI4); daily history from the U.S. Geological Survey (site 05451500). Last reading 2026-10-13. For flood safety decisions always follow official National Weather Service warnings.