Massachusetts River Levels & Streamflow
As of Aug 5, 2026, Massachusetts rivers are running at 329% of normal across 78 USGS gauges — the highest is 12,000 cfs on the Connecticut R At Interstate 391 Bridge At Holyoke. Live discharge, gauge height, and percent-of-normal for every USGS streamgauge in Massachusetts.
Streamflow levels across Massachusetts are currently 329% of normal, with the Connecticut R At Interstate 391 Bridge At Holyoke reporting the highest discharge in the state at 12,000 cfs and a gauge stage of 8.19 ft.
Meanwhile, the Stillwater River Near Sterling is seeing a spike today — up 3236% since yesterday and currently running near peak.
Tap any gauge below for the full hydrograph, paired weather forecast, and historical context. Use the rivers panel to jump into Massachusetts's named rivers.
State-wide streamflow overview
The Massachusetts flow picture in four data points -- where the state sits versus historical norms, what's flowing hardest, and what's spiking fastest.
Percent of normal
100% is the historical norm. Below 70% indicates drought; above 130% can flag elevated flood risk.
Highest discharge
Gauge stage 8.19 ft
Biggest 24h spike
Now 724 cfs
Network coverage
USGS gauges feeding 0 named rivers in Massachusetts.
Massachusetts USGS streamgauges
Every USGS gauge Snoflo tracks in Massachusetts. Sortable, quickly filterable. Numeric columns heat-mapped from light to deep. Tap any gauge for its full hydrograph and forecast.
| Streamgage | Streamflow | Gage height | Water temp | Air temp | Elevation | Watershed |
|---|---|---|---|---|---|---|
|
Connecticut River At Montague City, Ma
13 hours ago · USGS 01170500 |
13,400 cfs | 11.64 ft | · | 87°F | 111 ft | Middle Connecticut |
|
Connecticut R At Interstate 391 Bridge At Holyoke, Ma
12 hours ago · USGS 01172010 |
13,000 cfs | 8.49 ft | · | 86°F | 43 ft | Middle Connecticut |
|
Merrimack River Bl Concord River At Lowell, Ma
12 hours ago · USGS 01100000 |
6,360 cfs | 43.74 ft | · | 88°F | 50 ft | Merrimack |
|
Chicopee River At Indian Orchard, Ma
13 hours ago · USGS 01177000 |
1,790 cfs | 6.23 ft | · | 86°F | 126 ft | Chicopee |
|
Millers River At Erving, Ma
13 hours ago · USGS 01166500 |
1,730 cfs | 4.26 ft | · | 85°F | 378 ft | Miller |
|
Deerfield River Near West Deerfield, Ma
12 hours ago · USGS 01170000 |
1,700 cfs | 3.54 ft | · | 86°F | 157 ft | Deerfield |
|
Nashua River At East Pepperell, Ma
12 hours ago · USGS 01096500 |
1,670 cfs | 4.44 ft | · | 87°F | 165 ft | Nashua |
|
Housatonic River Nr Ashley Falls, Ma
13 hours ago · USGS 01198125 |
1,360 cfs | 5.83 ft | · | 82°F | 646 ft | Housatonic |
|
Deerfield River At Charlemont, Ma
12 hours ago · USGS 01168500 |
1,290 cfs | 3.47 ft | · | 81°F | 517 ft | Deerfield |
|
Westfield River Near Westfield, Ma
13 hours ago · USGS 01183500 |
1,270 cfs | 5.35 ft | · | 86°F | 140 ft | Westfield |
|
Housatonic River Near Great Barrington, Ma
12 hours ago · USGS 01197500 |
793 cfs | 3.14 ft | · | 81°F | 693 ft | Housatonic |
|
Ware River At Gibbs Crossing, Ma
12 hours ago · USGS 01173500 |
760 cfs | 3.52 ft | · | 84°F | 380 ft | Chicopee |
|
Ware River At Intake Works Near Barre, Ma
13 hours ago · USGS 01173000 |
684 cfs | 5.92 ft | 73°F | 83°F | 639 ft | Chicopee |
|
Taunton River Near Bridgewater, Ma
12 hours ago · USGS 01108000 |
631 cfs | 4.67 ft | 62°F | 86°F | 10 ft | Narragansett |
|
North Nashua River Near Leominster, Ma
13 hours ago · USGS 01094500 |
476 cfs | 4.11 ft | · | 86°F | 274 ft | Nashua |
|
Millers River Near Winchendon, Ma
13 hours ago · USGS 01162000 |
473 cfs | 6.46 ft | · | 83°F | 834 ft | Miller |
|
Ware River Near Barre, Ma
12 hours ago · USGS 01172500 |
472 cfs | 4.43 ft | · | 83°F | 738 ft | Chicopee |
|
Westfield River At Knightville, Ma
12 hours ago · USGS 01179500 |
441 cfs | 3.91 ft | · | 83°F | 464 ft | Westfield |
|
Concord R Below R Meadow Brook, Ma
12 hours ago · USGS 01099500 |
323 cfs | 4.75 ft | · | 88°F | 67 ft | Merrimack |
|
Quaboag River At West Brimfield, Ma
13 hours ago · USGS 01176000 |
279 cfs | 3.76 ft | · | 84°F | 388 ft | Chicopee |
|
North Nashua River At Fitchburg, Ma
12 hours ago · USGS 01094400 |
255 cfs | 3.71 ft | · | 86°F | 399 ft | Nashua |
|
Squannacook River Near West Groton, Ma
13 hours ago · USGS 01096000 |
241 cfs | 3.36 ft | · | 87°F | 246 ft | Nashua |
|
Hoosic River Near Williamstown, Ma
13 hours ago · USGS 01332500 |
224 cfs | 5.71 ft | · | 82°F | 618 ft | Hudson-Hoosic |
|
Stillwater River Near Sterling, Ma
12 hours ago · USGS 01095220 |
204 cfs | 5.76 ft | 70°F | 85°F | 403 ft | Nashua |
|
West Branch Westfield River At Huntington, Ma
12 hours ago · USGS 01181000 |
181 cfs | 4.15 ft | · | 84°F | 391 ft | Westfield |
|
Blackstone River, Ma
13 hours ago · USGS 01109730 |
178 cfs | 2.40 ft | · | 85°F | 382 ft | Blackstone |
|
Quinebaug R Bl Westville Dam Nr Southbridge, Ma
12 hours ago · USGS 01123600 |
165 cfs | 4.16 ft | · | 85°F | 513 ft | Quinebaug |
|
Otter River At Otter River, Ma
13 hours ago · USGS 01163200 |
155 cfs | 1.96 ft | · | 82°F | 901 ft | Miller |
|
East Branch Swift River Near Hardwick, Ma
12 hours ago · USGS 01174500 |
155 cfs | 19.84 ft | · | 83°F | 520 ft | Chicopee |
|
Priest Brook Near Winchendon, Ma
12 hours ago · USGS 01162500 |
152 cfs | 3.86 ft | · | 83°F | 852 ft | Miller |
|
Assabet River At Maynard, Ma
13 hours ago · USGS 01097000 |
144 cfs | 2.39 ft | · | 87°F | 154 ft | Concord |
|
Charles River At Dover, Ma
12 hours ago · USGS 01103500 |
142 cfs | 1.05 ft | · | 88°F | 93 ft | Charles |
|
North River At Shattuckville, Ma
12 hours ago · USGS 01169000 |
141 cfs | 2.48 ft | · | 83°F | 459 ft | Deerfield |
|
West Branch Farmington River Near New Boston, Ma
12 hours ago · USGS 01185500 |
131 cfs | 3.20 ft | · | 81°F | 776 ft | Farmington |
|
Quinebaug R Bl E Brimfield Dam At Fiskdale, Ma
12 hours ago · USGS 01123360 |
131 cfs | 3.53 ft | · | 84°F | 614 ft | Quinebaug |
|
Neponset River At Milton Village, Ma
12 hours ago · USGS 011055566 |
129 cfs | 1.60 ft | · | 89°F | 5 ft | Charles |
|
East Branch Housatonic River At Coltsville, Ma
12 hours ago · USGS 01197000 |
126 cfs | 1.34 ft | · | 81°F | 996 ft | Housatonic |
|
Threemile River At North Dighton, Ma
13 hours ago · USGS 01109060 |
119 cfs | 3.17 ft | · | 86°F | 12 ft | Narragansett |
|
Charles River At Waltham, Ma
12 hours ago · USGS 01104500 |
106 cfs | 1.22 ft | · | 89°F | 16 ft | Charles |
|
Sudbury River At Saxonville, Ma
13 hours ago · USGS 01098530 |
96 cfs | 5.31 ft | · | 88°F | 116 ft | Concord |
|
Indian Head River At Hanover, Ma
12 hours ago · USGS 01105730 |
94 cfs | 2.47 ft | · | 88°F | 8 ft | Cape Cod |
|
Charles River At Wellesley, Ma
12 hours ago · USGS 01104200 |
93 cfs | 3.02 ft | · | 89°F | 67 ft | Charles |
|
Green River Near Great Barrington, Ma
12 hours ago · USGS 01198000 |
92 cfs | 1.37 ft | · | 82°F | 694 ft | Housatonic |
|
Hoosic River At Adams, Ma
12 hours ago · USGS 01331500 |
84 cfs | 6.02 ft | · | 82°F | 831 ft | Hudson-Hoosic |
|
Charles River At Medway, Ma
12 hours ago · USGS 01103280 |
73 cfs | 1.26 ft | · | 86°F | 129 ft | Charles |
|
Green River At Williamstown, Ma
13 hours ago · USGS 01333000 |
72 cfs | 2.26 ft | · | 83°F | 614 ft | Hudson-Hoosic |
|
Shawsheen River Near Wilmington, Ma
12 hours ago · USGS 01100600 |
67 cfs | 2.97 ft | · | 88°F | 95 ft | Merrimack |
|
Jones River At Kingston, Ma
13 hours ago · USGS 01105870 |
67 cfs | 3.46 ft | · | 86°F | 8 ft | Cape Cod |
|
Mill River At Northampton, Ma
13 hours ago · USGS 01171500 |
61 cfs | 6.13 ft | · | 86°F | 205 ft | Middle Connecticut |
|
Neponset River At Greenlodge St Near Canton, Ma
12 hours ago · USGS 01105554 |
58 cfs | 7.41 ft | · | 88°F | 46 ft | Charles |
|
Segreganset River Near Dighton, Ma
12 hours ago · USGS 01109070 |
58 cfs | 2.66 ft | · | 86°F | 36 ft | Narragansett |
|
Green River Near Colrain, Ma
13 hours ago · USGS 01170100 |
52 cfs | 3.07 ft | 45°F | 84°F | 436 ft | Deerfield |
|
Swift River At West Ware, Ma
13 hours ago · USGS 01175500 |
51 cfs | 2.21 ft | · | 84°F | 370 ft | Chicopee |
|
Mother Brook At Dedham, Ma
13 hours ago · USGS 01104000 |
44 cfs | 80.83 ft | · | 89°F | 87 ft | Charles |
|
Aberjona River At Winchester, Ma
13 hours ago · USGS 01102500 |
41 cfs | 7.79 ft | · | 89°F | 14 ft | Charles |
|
Quinsigamond River At North Grafton, Ma
13 hours ago · USGS 01110000 |
40 cfs | 1.53 ft | · | 86°F | 349 ft | Blackstone |
|
Ipswich River Near Ipswich, Ma
13 hours ago · USGS 01102000 |
39 cfs | 3.06 ft | · | 88°F | 21 ft | Charles |
|
South River Near Conway, Ma
13 hours ago · USGS 01169900 |
38 cfs | 1.91 ft | · | 84°F | 456 ft | Deerfield |
|
West Branch Swift River Near Shutesbury, Ma
13 hours ago · USGS 01174565 |
38 cfs | 1.78 ft | · | 83°F | 536 ft | Chicopee |
|
Wading River Near Norton, Ma
13 hours ago · USGS 01109000 |
37 cfs | 5.68 ft | · | 86°F | 63 ft | Narragansett |
|
Quinapoxet River At Canada Mills Near Holden, Ma
12 hours ago · USGS 01095375 |
37 cfs | 7.03 ft | 71°F | 85°F | 569 ft | Nashua |
|
Paskamanset River Near South Dartmouth, Ma
13 hours ago · USGS 01105933 |
33 cfs | 9.04 ft | · | 83°F | 29 ft | Cape Cod |
|
Sevenmile River Near Spencer, Ma
12 hours ago · USGS 01175670 |
25 cfs | 9.80 ft | · | 84°F | 650 ft | Chicopee |
|
Ipswich River At South Middleton, Ma
12 hours ago · USGS 01101500 |
22 cfs | 2.32 ft | · | 88°F | 49 ft | Charles |
|
Lake Cochituate Outlet At Framingham, Ma
13 hours ago · USGS 01098500 |
19 cfs | 4.39 ft | · | 88°F | 129 ft | Concord |
|
East Branch Neponset River At Canton, Ma
13 hours ago · USGS 01105500 |
18 cfs | · | 79°F | 88°F | 80 ft | Charles |
|
Neponset River At Norwood, Ma
13 hours ago · USGS 01105000 |
18 cfs | 5.86 ft | · | 88°F | 51 ft | Charles |
|
Quashnet River At Waquoit Village, Ma
13 hours ago · USGS 011058837 |
15 cfs | 2.07 ft | · | 81°F | 3 ft | Cape Cod |
|
Saugus R At Saugus Iron Works At Saugus, Ma
12 hours ago · USGS 01102345 |
15 cfs | 1.83 ft | · | 88°F | 14 ft | Charles |
|
Stony Brook At Rt 20 At Waltham, Ma
12 hours ago · USGS 01104460 |
14 cfs | 5.04 ft | 71°F | 88°F | 87 ft | Charles |
|
Hobbs Bk Below Cambridge Res Nr Kendall Green, Ma
12 hours ago · USGS 01104430 |
6 cfs | · | 76°F | 88°F | 145 ft | Charles |
|
Nashoba Brook Near Acton, Ma
12 hours ago · USGS 01097300 |
6 cfs | 3.76 ft | · | 87°F | 155 ft | Concord |
|
Herring River At North Harwich, Ma
12 hours ago · USGS 01105880 |
4 cfs | 1.94 ft | · | 84°F | 21 ft | Cape Cod |
|
Old Swamp River Near South Weymouth, Ma
13 hours ago · USGS 01105600 |
3 cfs | 2.67 ft | · | 89°F | 87 ft | Cape Cod |
|
Whitmans Pond Fish Ladder At East Weymouth, Ma
12 hours ago · USGS 01105608 |
2 cfs | 31.38 ft | · | 89°F | 52 ft | Charles |
|
Parker River At Byfield, Ma
12 hours ago · USGS 01101000 |
1 cfs | · | · | 88°F | 25 ft | Charles |
|
Whitmans Pond, Ma
13 hours ago · USGS 01105606 |
1 cfs | 71.80 ft | · | 89°F | 75 ft | Charles |
|
Stony Brook Reservoir At Dam Near Waltham, Ma
12 hours ago · USGS 01104480 |
0 cfs | · | 36°F | 89°F | 62 ft | Charles |
See every Massachusetts gauge ranked against normal.
- Percentile rank & % of median for all 78 gauges
- 15-day PULSE forecast on every gauge
- Custom flow alerts & full daily history
About Massachusetts streamflow
What are river levels like in Massachusetts right now?
As of August 5, 2026, Massachusetts rivers are running at 329% of normal across 78 USGS streamgauges, and the Connecticut R At Interstate 391 Bridge At Holyoke is reporting the highest discharge at 12,000 cfs. The full sortable gauge table is below.
Which Massachusetts river is running highest right now?
As of August 5, 2026, the highest discharge in Massachusetts is 12,000 cfs on the Connecticut R At Interstate 391 Bridge At Holyoke. See the sortable gauge table for the full statewide ranking.
Are Massachusetts rivers high or low right now?
Compare the statewide percent-of-normal on this page: above 100% means Massachusetts rivers are running higher than the seasonal average for the date, below 100% means lower (a dry spell or drought). Each gauge also shows its own percent of median.
Where does the Massachusetts streamflow data come from?
The U.S. Geological Survey National Water Information System. USGS streamgauges report continuously (every 15 minutes) and the data is the canonical real-time record for U.S. rivers. Snoflo pulls the latest readings and joins them to a 7-day NOAA weather forecast for each station.
What is cfs?
Cubic feet per second — the standard unit for streamflow. One cfs is about 7.5 gallons per second. Small creeks run at single-digit cfs; the Mississippi at hundreds of thousands.
What does Gauge Height mean?
The water level at the gauge in feet above the reference datum. Used together with discharge to track river state. Flood stage and runnable levels are typically expressed in gauge height (e.g., "flood at 16 ft").
How fresh is the Massachusetts data?
USGS streamgauges report every 15 minutes; Snoflo re-pulls throughout the day. The AI briefing regenerates daily.
Can I get a flow alert for a Massachusetts gauge?
Yes. Save any USGS gauge as a favorite in the Snoflo iOS app, set a discharge or stage threshold (e.g. "alert me when discharge crosses 2,000 cfs"), and you'll get a push the moment it crosses.
Is this a substitute for an NWS flood warning?
No. Snoflo is informational. For flood life-safety decisions always follow guidance from your local NWS forecast office and state emergency management. Snoflo data is one input among several.