Maximum discharge along the river is currently at the reporting a streamflow rate of cfs. This is also the highest stage along the Watonwan River, with a gauge stage of ft at this location. This river is monitored from 1 different streamgauging stations along the Watonwan River, the highest being situated at an altitude of ft, the .
| Streamgauge | Streamflow | Gauge Stage | 24hr Change (%) | % Normal | Minimum (cfs) | Maximum (cfs) | Air Temp | Elevation |
|---|---|---|---|---|---|---|---|---|
|
Watonwan River Near Garden City
USGS 05319500 |
82 cfs | 0.96 ft | 65.93 |
The Watonwan River is a tributary of the Blue Earth River, 113 miles (182 km) long, in southern Minnesota in the United States. Via the Blue Earth and Minnesota rivers, it is part of the watershed of the Mississippi River, draining an area of 878 square miles (2,270 km2) in an agricultural region. The Watonwan drains about a quarter of the Blue Earth River's watershed.The river was the site of the capture of Bob, Cole and Jim Younger (members of the James–Younger Gang) near Madelia in 1876.