Total streamflow across the Trempealeau River was last observed at 1,063 cfs, and is expected to yield approximately 2,108 acre-ft of water today; about 86% of normal. Average streamflow for this time of year is 1,232 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 Dodge reporting a streamflow rate of 576 cfs. This is also the highest stage along the Trempealeau River, with a gauge stage of 5.89 ft at this location. 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. It has a rich history, as it was an important transportation route for Native American tribes and early European settlers. The river's hydrology is varied, with many areas of rapids, quiet pools, and sandbars. There are several reservoirs and dams along the river, including the Upper and Lower Beaver Creek dams and the Neshonoc Dam. These dams provide hydroelectric power and recreational opportunities like swimming, boating, and fishing. Agriculture is a major use of the land surrounding the river, with crops like corn and soybeans grown in the fertile soil. The Trempealeau River is a valuable resource for both the environment and the communities it flows through.