Total streamflow across the Chehalis River was last observed at 8,260 cfs, and is expected to yield approximately 16,384 acre-ft of water today; about 53% of normal. River levels are low and may signify a drought. Average streamflow for this time of year is 15,599 cfs, with recent peaks last observed on 2022-01-08 when daily discharge volume was observed at 112,610 cfs.

Maximum discharge along the river is currently at the Chehalis River Near Grand Mound reporting a streamflow rate of 8,040 cfs. However, the streamgauge with the highest stage along the river is the Chehalis River Near Doty with a gauge stage of 309.42 ft. This river is monitored from 4 different streamgauging stations along the Chehalis River, the highest being situated at an altitude of 324 ft, the Chehalis River Near Doty.

The Chehalis River is a 126-mile long river that flows through western Washington State. It has two main tributaries, the East Fork Chehalis and the West Fork Chehalis. The river was an important resource for Native American tribes such as the Chehalis and Chinook for centuries before European settlers arrived. Today, the Chehalis River is used for a variety of recreational activities such as fishing, kayaking, and camping. It is also used for agricultural purposes, with farms and pastureland located along its banks. The river is home to several reservoirs and dams, including the Mossyrock and Mayfield Dams, which provide hydroelectric power and flood control for surrounding communities. Despite these measures, the Chehalis River is prone to flooding during heavy rain events.