Total streamflow across the Jefferson River was last observed at 3,380 cfs, and is expected to yield approximately 6,704 acre-ft of water today; about 92% of normal. Average streamflow for this time of year is 3,665 cfs, with recent peaks last observed on 2011-06-12 when daily discharge volume was observed at 30,300 cfs.

Maximum discharge along the river is currently at the Jefferson River Near Three Forks Mt reporting a streamflow rate of 1,740 cfs. However, the streamgauge with the highest stage along the river is the Jefferson River Near Twin Bridges Mt with a gauge stage of 4.3 ft. This river is monitored from 2 different streamgauging stations along the Jefferson River, the highest being situated at an altitude of 4,588 ft, the Jefferson River Near Twin Bridges Mt.

The Jefferson River is a tributary of the Missouri River, located in the western United States. It is approximately 83 miles long and runs through Montana. The river was named after Thomas Jefferson, who sent Meriwether Lewis and William Clark on an expedition to explore the river and its surroundings. The Jefferson River originates in the mountains of southwestern Montana and flows north through the Jefferson Valley. The river is primarily used for irrigation and agriculture, but there are also several recreational activities available, such as fishing, kayaking, and rafting. There are several dams and reservoirs along the Jefferson River, including the Canyon Ferry Dam and Reservoir and the Blacktail Dam, which provide hydroelectric power and irrigation water. Overall, the Jefferson River is an important natural resource for Montana's economy and environment.