Massachusetts River Levels & Streamflow
As of Oct 1, 2026, Massachusetts rivers are running at 219% of normal across 79 USGS gauges — the highest is 8,120 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.
Massachusetts river map
See Massachusetts’s rivers on a live map
Every gauge, river and reservoir, one tap each:
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Massachusetts river conditions today
Where rivers are running versus normal, what’s spiking and what’s coming — refreshed daily from USGS and NOAA.
Streamflow levels across Massachusetts are currently 219% of normal, with the Connecticut R At Interstate 391 Bridge At Holyoke reporting the highest discharge in the state at 8,120 cfs and a gauge stage of 6.83 ft.
Meanwhile, the Connecticut R At Interstate 391 Bridge At Holyoke is seeing a spike today — up 115% 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.
How Massachusetts’s rivers compare to normal
Every gauge placed by its own percent of normal, and three years of the statewide trend.
Where every gauge actually sits
One dot per Massachusetts streamgauge, placed by its own percent of normal. The state average is a single line through all of it.
Percent of normal compares today's discharge with the historical average for this calendar day. Tap any dot to open that gauge.
Massachusetts streamflow, three water years
Statewide percent of normal, every day since Sep 2023. The dotted line is normal.
799 daily readings from 79 reporting gauges. Percent of normal is today's statewide discharge against the historical average for the same calendar day — 100% is normal, not "good". The axis tops out at 250%: 28 readings above that — including the 440% peak in Aug 2026 — are drawn along the top edge, so a few flood days cannot flatten three years of everything else. The line breaks in 2 places where the record skips more than five days — those are gaps in reporting, not readings of zero.
Massachusetts flow report
| Streamgage | Streamflow | Gage height | Water temp | Air temp | Elevation | Watershed |
|---|---|---|---|---|---|---|
|
Connecticut R At Interstate 391 Bridge At Holyoke, Ma
8 hours ago · USGS 01172010 |
8,470 cfs | 6.96 ft | · | 74°F | 43 ft | Middle Connecticut |
|
Merrimack River Bl Concord River At Lowell, Ma
8 hours ago · USGS 01100000 |
4,010 cfs | 42.90 ft | · | 74°F | 50 ft | Merrimack |
|
Connecticut River At Montague City, Ma
9 hours ago · USGS 01170500 |
2,720 cfs | 6.75 ft | · | 74°F | 111 ft | Middle Connecticut |
|
Taunton River Near Bridgewater, Ma
8 hours ago · USGS 01108000 |
1,670 cfs | 7.28 ft | 62°F | 74°F | 10 ft | Narragansett |
|
Blackstone River At Northbridge, Ma
3 days ago · USGS 01110500 |
1,010 cfs | 4.02 ft | · | 56°F | 260 ft | Blackstone |
|
Nashua River At East Pepperell, Ma
9 hours ago · USGS 01096500 |
824 cfs | 2.97 ft | · | 55°F | 165 ft | Nashua |
|
Neponset River At Milton Village, Ma
8 hours ago · USGS 011055566 |
660 cfs | 3.10 ft | · | 74°F | 5 ft | Charles |
|
Chicopee River At Indian Orchard, Ma
9 hours ago · USGS 01177000 |
618 cfs | 4.84 ft | · | 74°F | 126 ft | Chicopee |
|
Concord R Below R Meadow Brook, Ma
8 hours ago · USGS 01099500 |
593 cfs | 5.30 ft | · | 74°F | 67 ft | Merrimack |
|
Charles River At Dover, Ma
8 hours ago · USGS 01103500 |
549 cfs | 2.39 ft | · | 74°F | 93 ft | Charles |
|
Westfield River Near Westfield, Ma
9 hours ago · USGS 01183500 |
516 cfs | 4.01 ft | · | 73°F | 140 ft | Westfield |
|
Millers River At Erving, Ma
9 hours ago · USGS 01166500 |
508 cfs | 2.81 ft | · | 72°F | 378 ft | Miller |
|
Neponset River At Greenlodge St Near Canton, Ma
8 hours ago · USGS 01105554 |
456 cfs | 12.09 ft | · | 75°F | 46 ft | Charles |
|
Threemile River At North Dighton, Ma
9 hours ago · USGS 01109060 |
387 cfs | 4.22 ft | · | 74°F | 12 ft | Narragansett |
|
Charles River At Wellesley, Ma
8 hours ago · USGS 01104200 |
345 cfs | 3.64 ft | · | 74°F | 67 ft | Charles |
|
Charles River At Waltham, Ma
8 hours ago · USGS 01104500 |
339 cfs | 1.99 ft | · | 74°F | 16 ft | Charles |
|
Deerfield River Near West Deerfield, Ma
8 hours ago · USGS 01170000 |
328 cfs | 2.17 ft | · | 73°F | 157 ft | Deerfield |
|
Housatonic River Nr Ashley Falls, Ma
9 hours ago · USGS 01198125 |
327 cfs | 2.45 ft | · | 74°F | 646 ft | Housatonic |
|
Paskamanset River Near South Dartmouth, Ma
9 hours ago · USGS 01105933 |
291 cfs | 12.10 ft | · | 69°F | 29 ft | Cape Cod |
|
Assabet River At Maynard, Ma
9 hours ago · USGS 01097000 |
284 cfs | 3.06 ft | · | 73°F | 154 ft | Concord |
|
Deerfield River At Charlemont, Ma
8 hours ago · USGS 01168500 |
266 cfs | 2.12 ft | · | 69°F | 517 ft | Deerfield |
|
Housatonic River Near Great Barrington, Ma
8 hours ago · USGS 01197500 |
261 cfs | 2.18 ft | · | 73°F | 693 ft | Housatonic |
|
Ware River At Gibbs Crossing, Ma
8 hours ago · USGS 01173500 |
254 cfs | 2.78 ft | · | 72°F | 380 ft | Chicopee |
|
North Nashua River Near Leominster, Ma
9 hours ago · USGS 01094500 |
226 cfs | 3.06 ft | · | 73°F | 274 ft | Nashua |
|
Mother Brook At Dedham, Ma
9 hours ago · USGS 01104000 |
203 cfs | 82.54 ft | · | 75°F | 87 ft | Charles |
|
Charles River At Medway, Ma
8 hours ago · USGS 01103280 |
200 cfs | 1.90 ft | · | 74°F | 129 ft | Charles |
|
Westfield River At Knightville, Ma
8 hours ago · USGS 01179500 |
196 cfs | 3.32 ft | · | 71°F | 464 ft | Westfield |
|
Ware River At Intake Works Near Barre, Ma
9 hours ago · USGS 01173000 |
160 cfs | 4.53 ft | 60°F | 70°F | 639 ft | Chicopee |
|
Millers River Near Winchendon, Ma
9 hours ago · USGS 01162000 |
158 cfs | 4.75 ft | · | 70°F | 834 ft | Miller |
|
Sudbury River At Saxonville, Ma
9 hours ago · USGS 01098530 |
152 cfs | 5.78 ft | · | 74°F | 116 ft | Concord |
|
North Nashua River At Fitchburg, Ma
8 hours ago · USGS 01094400 |
149 cfs | 3.23 ft | · | 72°F | 399 ft | Nashua |
|
Wading River Near Norton, Ma
9 hours ago · USGS 01109000 |
146 cfs | 6.66 ft | · | 74°F | 63 ft | Narragansett |
|
Indian Head River At Hanover, Ma
8 hours ago · USGS 01105730 |
126 cfs | 2.74 ft | · | 75°F | 8 ft | Cape Cod |
|
Hoosic River Near Williamstown, Ma
9 hours ago · USGS 01332500 |
125 cfs | 5.49 ft | · | 72°F | 618 ft | Hudson-Hoosic |
|
Blackstone River, Ma
8 hours ago · USGS 01109730 |
124 cfs | 2.16 ft | · | 73°F | 382 ft | Blackstone |
|
Swift River At West Ware, Ma
9 hours ago · USGS 01175500 |
120 cfs | 2.85 ft | · | 72°F | 370 ft | Chicopee |
|
Squannacook River Near West Groton, Ma
9 hours ago · USGS 01096000 |
110 cfs | 2.66 ft | · | 73°F | 246 ft | Nashua |
|
Ware River Near Barre, Ma
8 hours ago · USGS 01172500 |
105 cfs | 3.41 ft | · | 70°F | 738 ft | Chicopee |
|
West Branch Farmington River Near New Boston, Ma
8 hours ago · USGS 01185500 |
103 cfs | 2.98 ft | · | 72°F | 776 ft | Farmington |
|
Neponset River At Norwood, Ma
9 hours ago · USGS 01105000 |
102 cfs | 6.62 ft | · | 74°F | 51 ft | Charles |
|
North River At Shattuckville, Ma
8 hours ago · USGS 01169000 |
101 cfs | 2.07 ft | · | 71°F | 459 ft | Deerfield |
|
Otter River At Otter River, Ma
9 hours ago · USGS 01163200 |
97 cfs | 1.61 ft | · | 70°F | 901 ft | Miller |
|
Quaboag River At West Brimfield, Ma
9 hours ago · USGS 01176000 |
83 cfs | 2.93 ft | · | 71°F | 388 ft | Chicopee |
|
Quinsigamond River At North Grafton, Ma
9 hours ago · USGS 01110000 |
81 cfs | 1.85 ft | · | 73°F | 349 ft | Blackstone |
|
Jones River At Kingston, Ma
9 hours ago · USGS 01105870 |
78 cfs | 3.56 ft | · | 73°F | 8 ft | Cape Cod |
|
East Branch Neponset River At Canton, Ma
9 hours ago · USGS 01105500 |
74 cfs | 1.78 ft | 79°F | 74°F | 80 ft | Charles |
|
Ipswich River Near Ipswich, Ma
8 hours ago · USGS 01102000 |
68 cfs | 3.31 ft | · | 74°F | 21 ft | Charles |
|
Stillwater River Near Sterling, Ma
8 hours ago · USGS 01095220 |
63 cfs | 4.81 ft | 59°F | 72°F | 403 ft | Nashua |
|
Hoosic River At Adams, Ma
8 hours ago · USGS 01331500 |
58 cfs | 5.87 ft | · | 73°F | 831 ft | Hudson-Hoosic |
|
West Branch Westfield River At Huntington, Ma
8 hours ago · USGS 01181000 |
57 cfs | 3.50 ft | · | 71°F | 391 ft | Westfield |
|
East Branch Housatonic River At Coltsville, Ma
8 hours ago · USGS 01197000 |
52 cfs | · | · | 71°F | 996 ft | Housatonic |
|
Shawsheen River Near Wilmington, Ma
8 hours ago · USGS 01100600 |
52 cfs | 2.77 ft | · | 75°F | 95 ft | Merrimack |
|
Quinebaug R Bl Westville Dam Nr Southbridge, Ma
8 hours ago · USGS 01123600 |
46 cfs | 3.49 ft | · | 72°F | 513 ft | Quinebaug |
|
Lake Cochituate Outlet At Framingham, Ma
9 hours ago · USGS 01098500 |
42 cfs | 4.68 ft | · | 74°F | 129 ft | Concord |
|
Segreganset River Near Dighton, Ma
8 hours ago · USGS 01109070 |
40 cfs | 2.48 ft | · | 73°F | 36 ft | Narragansett |
|
Mill River At Northampton, Ma
9 hours ago · USGS 01171500 |
39 cfs | 5.90 ft | · | 74°F | 205 ft | Middle Connecticut |
|
Green River Near Colrain, Ma
9 hours ago · USGS 01170100 |
39 cfs | 2.93 ft | 57°F | 72°F | 436 ft | Deerfield |
|
Quinapoxet River At Canada Mills Near Holden, Ma
8 hours ago · USGS 01095375 |
33 cfs | 6.92 ft | 59°F | 71°F | 569 ft | Nashua |
|
Quinebaug R Bl E Brimfield Dam At Fiskdale, Ma
8 hours ago · USGS 01123360 |
31 cfs | 2.54 ft | · | 72°F | 614 ft | Quinebaug |
|
East Branch Swift River Near Hardwick, Ma
8 hours ago · USGS 01174500 |
28 cfs | 19.49 ft | · | 71°F | 520 ft | Chicopee |
|
Whitmans Pond, Ma
9 hours ago · USGS 01105606 |
27 cfs | 72.92 ft | · | 75°F | 75 ft | Charles |
|
Green River At Williamstown, Ma
9 hours ago · USGS 01333000 |
27 cfs | 1.70 ft | · | 73°F | 614 ft | Hudson-Hoosic |
|
South River Near Conway, Ma
9 hours ago · USGS 01169900 |
25 cfs | 1.76 ft | · | 72°F | 456 ft | Deerfield |
|
Aberjona River At Winchester, Ma
9 hours ago · USGS 01102500 |
24 cfs | 7.53 ft | · | 74°F | 14 ft | Charles |
|
Priest Brook Near Winchendon, Ma
8 hours ago · USGS 01162500 |
22 cfs | 2.79 ft | · | 70°F | 852 ft | Miller |
|
Ipswich River At South Middleton, Ma
8 hours ago · USGS 01101500 |
17 cfs | 2.25 ft | · | 75°F | 49 ft | Charles |
|
Green River Near Great Barrington, Ma
8 hours ago · USGS 01198000 |
17 cfs | · | · | 73°F | 694 ft | Housatonic |
|
Quashnet River At Waquoit Village, Ma
9 hours ago · USGS 011058837 |
16 cfs | 2.22 ft | · | 67°F | 3 ft | Cape Cod |
|
West Branch Swift River Near Shutesbury, Ma
9 hours ago · USGS 01174565 |
13 cfs | 1.41 ft | · | 70°F | 536 ft | Chicopee |
|
Saugus R At Saugus Iron Works At Saugus, Ma
8 hours ago · USGS 01102345 |
13 cfs | 1.74 ft | · | 74°F | 14 ft | Charles |
|
Whitmans Pond Fish Ladder At East Weymouth, Ma
8 hours ago · USGS 01105608 |
12 cfs | 31.75 ft | · | 75°F | 52 ft | Charles |
|
Old Swamp River Near South Weymouth, Ma
9 hours ago · USGS 01105600 |
11 cfs | 2.86 ft | · | 76°F | 87 ft | Cape Cod |
|
Sevenmile River Near Spencer, Ma
8 hours ago · USGS 01175670 |
11 cfs | 9.47 ft | · | 71°F | 650 ft | Chicopee |
|
Stony Brook At Rt 20 At Waltham, Ma
8 hours ago · USGS 01104460 |
8 cfs | 4.84 ft | 60°F | 74°F | 87 ft | Charles |
|
Parker River At Byfield, Ma
8 hours ago · USGS 01101000 |
6 cfs | · | · | 75°F | 25 ft | Charles |
|
Nashoba Brook Near Acton, Ma
8 hours ago · USGS 01097300 |
3 cfs | 3.89 ft | · | 73°F | 155 ft | Concord |
|
Herring River At North Harwich, Ma
8 hours ago · USGS 01105880 |
2 cfs | 1.82 ft | · | 68°F | 21 ft | Cape Cod |
|
Hobbs Bk Below Cambridge Res Nr Kendall Green, Ma
8 hours ago · USGS 01104430 |
0 cfs | · | 59°F | 74°F | 145 ft | Charles |
|
Stony Brook Reservoir At Dam Near Waltham, Ma
8 hours ago · USGS 01104480 |
0 cfs | · | 36°F | 74°F | 62 ft | Charles |
About Massachusetts streamflow
What are river levels like in Massachusetts right now?
As of October 1, 2026, Massachusetts rivers are running at 219% of normal across 79 USGS streamgauges, and the Connecticut R At Interstate 391 Bridge At Holyoke is reporting the highest discharge at 8,120 cfs. The full sortable gauge table is below.
Which Massachusetts river is running highest right now?
As of October 1, 2026, the highest discharge in Massachusetts is 8,120 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.