Trempealeau River

Last Updated: April 14, 2026

Total streamflow across the Trempealeau River was last observed at 1,770 cfs, and is expected to yield approximately 3,511 acre-ft of water today; about 119% of normal. Average streamflow for this time of year is 1,486 cfs, with recent peaks last observed on 2017-07-21 when daily discharge volume was observed at 10,510 cfs.

Maximum discharge along the river is currently at the Trempealeau River At Arcadia reporting a streamflow rate of 1,770 cfs. However, the streamgauge with the highest stage along the river is the Trempealeau River At Dodge with a gauge stage of 7.8 ft. This river is monitored from 2 different streamgauging stations along the Trempealeau River, the highest being situated at an altitude of 728 ft, the Trempealeau River At Arcadia.

The Trempealeau River runs for 116 miles through western Wisconsin, beginning near Osseo and flowing into the Mississippi River.


15-Day Long Term Forecast


River Details

Last Updated 2026-04-14
Discharge Volume 3,511 ACRE-FT
Streamflow 1,770.0 cfs
Past 24 Hours: +857.0 cfs (+93.87%)
Percent of Normal 119.15%
Maximum 10,510.0 cfs
2017-07-21
Seasonal Avg 1,486 cfs
       
River Streamflow Levels
Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Trempealeau River At Arcadia
USGS 05379400
1770 cfs 6.52 ft 93.87
Trempealeau River At Dodge
USGS 05379500
1140 cfs 7.8 ft 29.55
Seasonal Discharge Comparison
Maximum Streamflow Discharge
Streamflow Elevation Profile

The Trempealeau River (pronounced TREM-puh-lo) is an 81.5-mile-long (131.2 km) tributary of the Mississippi River in the Driftless Area of western Wisconsin in the United States.