Minnesota River at Mankato

1. 26.60 ftFlood waters begin to impact Highway 169 in North Mankato.
2. 25.00 ftHighway 169 between St Peter and Mankato impacted in several locations. Barriers placed on east shoulder US 169 just north of St Peter at Rogers Creek or locally known as Robarts Creek. Hwy 22 bridge south of st peter closed (Spring flood impacts.)
3. 24.50 ftHWY 99 east of St Peter closed (estimated level for spring floods)
4. 21.00 ftDike patrolling begins in Mankato.

Chance of flooding, September to November

The three-month chances are the River Forecast Centers’ long-range flood outlook, issued August 28, 2026.

Most recent crests

• June 26, 2024: 29.76 ft
• May 17, 2023: 24.29 ft
• April 23, 2023: 20.86 ft
• May 19, 2022: 17.83 ft
• March 27, 2021: 10.20 ft
• April 2, 2020: 17.92 ft
• March 22, 2019: 26.24 ft
• June 27, 2018: 23.33 ft
• October 10, 2017: 16.13 ft
• May 26, 2017: 16.26 ft

• UpstreamMinnesota River at Judson
• DownstreamMinnesota River at St Peter
• Le Sueur River at Rapidan
• Seven Mile Creek (MN) at St. Peter 6S
• Blue Earth River at Rapidan
• Le Sueur River at St. Clair
• Watonwan River at Garden City
• Maple River at Sterling Center 2NE

Forecasts by the North Central River Forecast Center. Forecasts are issued as needed during times of high water, but are not routinely available. River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time. River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time. Stage may be affected by ice.

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.