MASSACHUSETTS FLOW REPORT

Last Updated: January 1, 2026

Massachusetts river enthusiasts, take note of the latest streamflow conditions across the state's waterways, which reveal a varied hydrological landscape. Most rivers are currently experiencing lower than normal streamflow levels, with the Merrimack River at Lowell displaying a flow of 6760 cubic feet per second (cfs), a significant 45.76% below what's typical for this season. Similarly, the Nashua River at East Pepperell and the Sudbury River at Saxonville are flowing at 294 cfs and 117 cfs, respectively, which are 69.47% and 64.08% less than their average flows. This trend of reduced streamflow extends across many rivers, including the Assabet, Concord, and Connecticut Rivers, potentially impacting local ecosystems and water availability in nearby cities such as Lowell, Worcester, and Springfield. Despite recent increases in gage height along the Charles River at Medway and substantial streamflow changes in the Quaboag River at West Brimfield, the prevailing low flows could signal a concern for upcoming recreational activities, including whitewater trails.

Particularly noticeable is the Blackstone River at Northbridge, which deviates from the trend with a current streamflow of 1240 cfs, 5.98% above the norm, suggesting a closer watch for any potential flooding or impact on whitewater conditions. The Connecticut River, a major watershed, is also seeing a dip in its flow with levels at Montague City and near the Interstate 391 Bridge at Holyoke reaching 15600 cfs and 16600 cfs, down 22.59% and 23.73%, respectively. These figures, along with observed gage heights, indicate that while there is no immediate threat of widespread flooding, localized issues could arise with any significant weather events. As streamflows continue to fluctuate, river and water enthusiasts should stay informed on current conditions to ensure the safety and enjoyment of Massachusetts' rivers and streams.