Mississippi River at McGregor, IA
River level and flood forecast · Clayton County
Normal6.7 ftas of Mon 2:45 PM
The river is 9.3 ft below flood stage (16 ft).
Forecast to hold near 6.7 ft through Mon, Oct 19, 7 AM.
The last 7 days and the forecast
NWS forecast issued Mon, Oct 12, 8:49 AM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Major flood stage | 22 ft |
| Moderate flood stage | 19 ft |
| Flood stage | 16 ft |
| Action stage | 13 ft |
| Record crest (April 24, 1965) | 25.38 ft |
What floods at each level
From the National Weather Service, highest first.
- 27.9 ftThe water overtops the levee.
- 25.4 ftThe water reaches the flood of record set in 1965.
- 25 ftMajor flooding occurs in McGregor.
- 23.5 ftThe road near the casino in Marquette is closed.
- 22 ftWater covers the north end of Main Street.
- 21.5 ftRailroad tracks near the casino in Marquette are closed.
- 19.6 ftThe road to the Prairie du Chien waste water treatment facility is flooded.
- 19 ftFlooding of some residential areas begin.
- 18 ftPumping operations begin at the Prairie du Chien waste water treatment facility.
- 17 ftMinor lowland flooding begins, and access to parks near the river in Prairie du Chien is affected.
- 16.5 ftWater may begin to go over the road covering part of Highway C near Highway 18.
- 16 ftThe Washington Street Bridge to Saint Feriole Island begins to flood and is closed. Pumping operations are underway.
Highest crests on record
- 25.38 ft — April 24, 1965
- 23.75 ft — April 20, 2001
- 22.91 ft — April 28, 2023
- 21.98 ft — June 29, 1993
- 21.75 ft — April 26, 2019
Recent crests: 20.75 ft (July 5, 2024) · 22.91 ft (April 28, 2023) · 16.77 ft (October 12, 2019) · 19.09 ft (June 2, 2019) · 21.75 ft (April 26, 2019)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (MCGI4); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.