MASSACHUSETTS FLOW REPORT

Last Updated: December 24, 2025

The Commonwealth of Massachusetts is experiencing a noticeable decline in river streamflow across the state, with many rivers and streams reporting flow values well below normal for this period. Notably, the Nashua River at East Pepperell has seen a substantial drop in streamflow with a current measurement of 201 cubic feet per second (cfs), which is -79.06% of the typical flow, reflecting a significant decrease of -36.99 cfs in the last 24 hours. The Merrimack River near Lowell, a major waterway for northeastern Massachusetts, also shows a decreased flow rate at 4040 cfs, -68.73% of its normal flow, which could affect recreational activities and ecosystems dependent on the river. River enthusiasts and communities along these rivers, including Lowell, Concord, and Pepperell, should be aware of the diminished water levels that could affect boating and aquatic habitats.

In contrast, the Blackstone River at Northbridge is an outlier with streamflow at 1240 cfs, which is slightly above the normal at +5.98%, with a recent increase of 12.73 cfs. This could indicate localized rainfall or watershed-specific factors affecting flow. However, overall, the current gage heights across the state, such as the elevated 82.06 feet at Mother Brook in Dedham or the low 1.35 feet at Nashua River in East Pepperell, reflect the variability and challenges facing Massachusetts' rivers. While the data does not currently indicate immediate flooding concerns, the trends in reduced streamflow could potentially lead to flow droughts if the pattern persists. Whitewater trails and recreational river use may be impacted, and residents in affected areas should remain informed on water levels and any subsequent impacts on water resource management and conservation efforts.