Total streamflow across the Little Menomonee River was last observed at 31 cfs, and is expected to yield approximately 62 acre-ft of water today; about 119% of normal. Average streamflow for this time of year is 26 cfs, with recent peaks last observed on 2024-04-03 when daily discharge volume was observed at 547 cfs.

Maximum discharge along the river is currently at the Little Menomonee River At Milwaukee reporting a streamflow rate of 15.8 cfs. This is also the highest stage along the Little Menomonee River, with a gauge stage of 4.23 ft at this location. This river is monitored from 2 different streamgauging stations along the Little Menomonee River, the highest being situated at an altitude of 729 ft, the Little Menomonee River Near Freistadt.