Des Moines River near Swan, IA
River level and flood forecast · Marion County
Normal53.7 ftas of Mon 3:15 PM
Flow: 25,000 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Sun, Dec 31, 6 PM. Forecasts change as rain falls and as upstream water arrives.
Highest crests on record
- 79.26 ft — July 5, 2010
- 76.39 ft — June 28, 2011
- 75.72 ft — May 31, 2019
- 70.57 ft — July 1, 2015
- 67.76 ft — June 27, 2015
Recent crests: 55.4 ft (August 14, 2025) · 53.37 ft (July 21, 2025) · 59.05 ft (July 19, 2024) · 51.14 ft (March 2, 2023) · 52.52 ft (June 9, 2022)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (SWNI4); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.