Wisconsin River River Levels

Last Updated: December 25, 2025

The Wisconsin River is a major tributary of the Mississippi River, stretching over 430 miles from its source in northern Wisconsin to its confluence with the Mississippi River.


Summary

Total streamflow across the Wisconsin River was last observed at 15,992 cfs, and is expected to yield approximately 31,720 acre-ft of water today; about 93% of normal. Average streamflow for this time of year is 17,227 cfs, with recent peaks last observed on 2019-04-19 when daily discharge volume was observed at 190,510 cfs.

Maximum discharge along the river is currently at the Wisconsin River At Muscoda reporting a streamflow rate of 9,560 cfs. However, the streamgauge with the highest stage along the river is the Wisconsin River At Rothschild with a gauge stage of 13.21 ft. This river is monitored from 6 different streamgauging stations along the Wisconsin River, the highest being situated at an altitude of 1,582 ft, the Wisconsin River @ Rainbow Lake Nr Lake Tomahawk.

River Details

Last Updated 2025-12-25
Discharge Volume 31,720 ACRE-FT
Streamflow 15,992.0 cfs
-31.0 cfs (-0.19%)
Percent of Normal 92.83%
Maximum 190,510.0 cfs
2019-04-19
Seasonal Avg 17,227 cfs
       
River Streamflow Levels
Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Wisconsin River @ Rainbow Lake Nr Lake Tomahawk
USGS 05391000
572 cfs 1.88 ft -0.17
Wisconsin River At Merrill
USGS 05395000
1740 cfs 4.65 ft 1.16
Wisconsin River At Rothschild
USGS 05398000
1810 cfs 13.21 ft -14.22
Wisconsin River At Wisconsin Rapids
USGS 05400760
2310 cfs 2.89 ft 1.32
Wisconsin River Near Wisconsin Dells
USGS 05404000
2840 cfs 2.19 ft -8.68
Wisconsin River At Muscoda
USGS 05407000
9560 cfs 2.67 ft 2.36
Seasonal Discharge Comparison
Maximum Streamflow Discharge
Streamflow Elevation Profile

The Wisconsin River is a tributary of the Mississippi River in the U.S. state of Wisconsin. At approximately 430 miles (692 km) long, it is the state's longest river. The river's name, first recorded in 1673 by Jacques Marquette as "Meskousing", is rooted in the Algonquian languages used by the area's American Indian tribes, but its original meaning is obscure. French explorers who followed in the wake of Marquette later modified the name to "Ouisconsin", and so it appears on Guillaume de L'Isle's map (Paris, 1718). This was simplified to "Wisconsin" in the early 19th century before being applied to Wisconsin Territory and finally the state of Wisconsin.
The Wisconsin River originates in the forests of the North Woods Lake District of northern Wisconsin, in Lac Vieux Desert near the border of the Upper Peninsula of Michigan. It flows south across the glacial plain of central Wisconsin, passing through Wausau, Stevens Point, and Wisconsin Rapids. In southern Wisconsin it encounters the terminal moraine formed during the last ice age, where it forms the Dells of the Wisconsin River. North of Madison at Portage, the river turns to the west, flowing through Wisconsin's hilly Western Upland and joining the Mississippi approximately 3 miles (4.8 km) south of Prairie du Chien.
The highest waterfall on the river is Grandfather Falls in Lincoln County.