Total streamflow across the Millers River was last observed at 1,394 cfs, and is expected to yield approximately 2,765 acre-ft of water today; about 98% of normal. Average streamflow for this time of year is 1,422 cfs, with recent peaks last observed on 2021-07-19 when daily discharge volume was observed at 6,340 cfs.

Maximum discharge along the river is currently at the Millers River At Erving reporting a streamflow rate of 1,110 cfs. However, the streamgauge with the highest stage along the river is the Millers River Near Winchendon with a gauge stage of 5.63 ft. This river is monitored from 3 different streamgauging stations along the Millers River, the highest being situated at an altitude of 834 ft, the Millers River Near Winchendon.

The Millers River is a 52-mile-long river located in northern Massachusetts. The river has a rich history of use for agriculture, industry, and recreation. The river begins in Ashburnham and flows through several towns, including Royalston, Athol, Orange, and Erving, before joining the Connecticut River in Montague. The Millers River is part of the Connecticut River watershed and has several reservoirs and dams along its length, including the Birch Hill Dam in Royalston, the Tully Lake Dam in Athol, and the Farley Mill Dam in Orange. These dams provide hydroelectric power and help regulate water flow. The river is also used for recreational activities, such as fishing, boating, and swimming, and supports agriculture in the surrounding areas.