Flow report
Massachusetts streamflow
Live discharge, gauge height, water temperature, and percent-of-normal readings from every USGS streamgauge in Massachusetts. Built for paddlers, anglers, water managers, and flood researchers.
USGS gauges
89
State percent normal
62%
Paddle runs
0
Updated
May 30
Open the Massachusetts flow layer on the map
Every USGS streamgauge filtered to Massachusetts.
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May
30
2026
Flow briefing
Streamflow levels across Massachusetts are currently 62% of normal, with the Connecticut R At Interstate 391 Bridge At Holyoke reporting the highest discharge in the state at 13,400 cfs and a gauge stage of 8.63 ft.
Meanwhile, the Concord R Below R Meadow Brook is seeing a spike today — up 6% 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.
Massachusetts at a glance
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
62%
100% is the historical norm. Below 70% indicates drought; above 130% can flag elevated flood risk.
Highest discharge
Connecticut R At Interstate 391 Bridge At Holyoke
13,400 cfs
Gauge stage 8.63 ft
Biggest 24h spike
Concord R Below R Meadow Brook
+6%
Now 335 cfs
Network coverage
Gauges + rivers tracked
89 + 47
USGS gauges feeding 47 named rivers in Massachusetts.
Full streamgauge inventory
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 |
|---|---|---|---|---|---|---|
|
Shawsheen River At Hanscom Field Near Bedford, Ma
2 years ago · USGS 01100568 |
7 cfs | · | 40°F | 44°F | 124 ft | Merrimack |
|
Shawsheen River Near Wilmington, Ma
7 days ago · USGS 01100600 |
20 cfs | 2.36 ft | · | 66°F | 95 ft | Merrimack |
|
Merrimack River Bl Concord River At Lowell, Ma
7 days ago · USGS 01100000 |
8,390 cfs | 44.38 ft | · | 67°F | 50 ft | Merrimack |
|
Quinapoxet River At Canada Mills Near Holden, Ma
7 days ago · USGS 01095375 |
19 cfs | 6.70 ft | 60°F | 66°F | 569 ft | Nashua |
|
Stillwater River Near Sterling, Ma
7 days ago · USGS 01095220 |
12 cfs | 4.19 ft | 60°F | 66°F | 403 ft | Nashua |
|
North Nashua River Near Leominster, Ma
7 days ago · USGS 01094500 |
95 cfs | 2.42 ft | · | 67°F | 274 ft | Nashua |
|
North Nashua River At Fitchburg, Ma
7 days ago · USGS 01094400 |
65 cfs | 2.68 ft | · | 67°F | 399 ft | Nashua |
|
Squannacook River Near West Groton, Ma
7 days ago · USGS 01096000 |
64 cfs | 2.20 ft | · | 68°F | 246 ft | Nashua |
|
Nashua River At East Pepperell, Ma
7 days ago · USGS 01096500 |
398 cfs | 1.67 ft | · | 68°F | 165 ft | Nashua |
|
Lake Cochituate Outlet At Framingham, Ma
7 days ago · USGS 01098500 |
18 cfs | 4.45 ft | · | 66°F | 129 ft | Concord |
|
Sudbury River At Saxonville, Ma
7 days ago · USGS 01098530 |
117 cfs | 5.47 ft | · | 66°F | 116 ft | Concord |
|
Assabet River At Maynard, Ma
7 days ago · USGS 01097000 |
90 cfs | 2.24 ft | · | 67°F | 154 ft | Concord |
|
Nashoba Brook Near Acton, Ma
7 days ago · USGS 01097300 |
7 cfs | 3.72 ft | · | 67°F | 155 ft | Concord |
|
Concord R Below R Meadow Brook, Ma
7 days ago · USGS 01099500 |
335 cfs | 4.78 ft | · | 67°F | 67 ft | Merrimack |
|
Connecticut R At Interstate 391 Bridge At Holyoke, Ma
7 days ago · USGS 01172010 |
13,400 cfs | 8.63 ft | · | 70°F | 43 ft | Middle Connecticut |
|
Mill River At Northampton, Ma
7 days ago · USGS 01171500 |
32 cfs | 5.78 ft | · | 69°F | 205 ft | Middle Connecticut |
|
Connecticut River At Montague City, Ma
7 days ago · USGS 01170500 |
9,430 cfs | 10.23 ft | · | 68°F | 111 ft | Middle Connecticut |
|
Otter River At Otter River, Ma
7 days ago · USGS 01163200 |
51 cfs | 1.23 ft | · | 66°F | 901 ft | Miller |
|
Millers River At Erving, Ma
7 days ago · USGS 01166500 |
481 cfs | 2.85 ft | · | 67°F | 378 ft | Miller |
|
Millers River At South Royalston, Ma
8 years ago · USGS 01164000 |
39 cfs | 3.69 ft | · | 68°F | 793 ft | Miller |
|
Birch Hill Reservoir At South Royalston, Ma
8 years ago · USGS 01163500 |
30 cfs | 1.29 ft | · | 68°F | 863 ft | Miller |
|
East Branch Tully River Near Athol, Ma
8 years ago · USGS 01165000 |
5 cfs | 2.55 ft | · | 70°F | 630 ft | Miller |
|
Priest Brook Near Winchendon, Ma
7 days ago · USGS 01162500 |
25 cfs | 2.87 ft | · | 66°F | 852 ft | Miller |
|
Millers River Near Winchendon, Ma
7 days ago · USGS 01162000 |
78 cfs | 4.37 ft | · | 66°F | 834 ft | Miller |
|
Deerfield River Near West Deerfield, Ma
7 days ago · USGS 01170000 |
358 cfs | 2.22 ft | · | 68°F | 157 ft | Deerfield |
|
South River Near Conway, Ma
7 days ago · USGS 01169900 |
18 cfs | 1.67 ft | · | 67°F | 456 ft | Deerfield |
|
Deerfield River At Charlemont, Ma
7 days ago · USGS 01168500 |
223 cfs | 2.02 ft | · | 66°F | 517 ft | Deerfield |
|
North River At Shattuckville, Ma
7 days ago · USGS 01169000 |
62 cfs | 1.88 ft | · | 66°F | 459 ft | Deerfield |
|
Green River Near Colrain, Ma
7 days ago · USGS 01170100 |
38 cfs | 2.92 ft | 42°F | 66°F | 436 ft | Deerfield |
|
Chicopee River At Indian Orchard, Ma
7 days ago · USGS 01177000 |
813 cfs | 5.10 ft | · | 69°F | 126 ft | Chicopee |
|
Quaboag River At West Brimfield, Ma
7 days ago · USGS 01176000 |
222 cfs | 3.55 ft | · | 67°F | 388 ft | Chicopee |
|
Ware River At Gibbs Crossing, Ma
7 days ago · USGS 01173500 |
181 cfs | 2.70 ft | · | 67°F | 380 ft | Chicopee |
|
Sevenmile River Near Spencer, Ma
7 days ago · USGS 01175670 |
12 cfs | 9.56 ft | · | 65°F | 650 ft | Chicopee |
|
Swift River At West Ware, Ma
7 days ago · USGS 01175500 |
43 cfs | 2.17 ft | · | 68°F | 370 ft | Chicopee |
|
Ware River At Intake Works Near Barre, Ma
7 days ago · USGS 01173000 |
103 cfs | 4.12 ft | 66°F | 66°F | 639 ft | Chicopee |
|
East Branch Swift River Near Hardwick, Ma
7 days ago · USGS 01174500 |
50 cfs | 19.58 ft | · | 65°F | 520 ft | Chicopee |
|
Ware River Near Barre, Ma
7 days ago · USGS 01172500 |
63 cfs | 3.15 ft | · | 66°F | 738 ft | Chicopee |
|
West Branch Swift River Near Shutesbury, Ma
7 days ago · USGS 01174565 |
9 cfs | 1.35 ft | · | 66°F | 536 ft | Chicopee |
|
Westfield River Near Westfield, Ma
7 days ago · USGS 01183500 |
287 cfs | 3.63 ft | · | 70°F | 140 ft | Westfield |
|
West Branch Westfield River At Huntington, Ma
7 days ago · USGS 01181000 |
51 cfs | 3.44 ft | · | 67°F | 391 ft | Westfield |
|
Middle B Westfield River At Goss Heights, Ma
8 years ago · USGS 01180500 |
8 cfs | 1.20 ft | · | 68°F | 401 ft | Westfield |
|
Westfield River At Knightville, Ma
7 days ago · USGS 01179500 |
122 cfs | 3.08 ft | · | 66°F | 464 ft | Westfield |
|
West Branch Farmington River Near New Boston, Ma
7 days ago · USGS 01185500 |
36 cfs | 2.51 ft | · | 67°F | 776 ft | Farmington |
|
Charles River At Medway, Ma
7 days ago · USGS 01103280 |
58 cfs | 1.15 ft | · | 66°F | 129 ft | Charles |
|
East Branch Neponset River At Canton, Ma
7 days ago · USGS 01105500 |
15 cfs | · | 79°F | 65°F | 80 ft | Charles |
|
Neponset River At Norwood, Ma
7 days ago · USGS 01105000 |
20 cfs | 5.90 ft | · | 65°F | 51 ft | Charles |
|
Old Swamp River Near South Weymouth, Ma
7 days ago · USGS 01105600 |
3 cfs | 2.63 ft | · | 61°F | 87 ft | Cape Cod |
|
Neponset River At Greenlodge St Near Canton, Ma
7 days ago · USGS 01105554 |
67 cfs | 7.60 ft | · | 64°F | 46 ft | Charles |
|
Whitmans Pond, Ma
7 days ago · USGS 01105606 |
7 cfs | 72.60 ft | · | 61°F | 75 ft | Charles |
|
Whitmans Pond Fish Ladder At East Weymouth, Ma
7 days ago · USGS 01105608 |
3 cfs | 31.50 ft | · | 61°F | 52 ft | Charles |
|
Mother Brook At Dedham, Ma
7 days ago · USGS 01104000 |
58 cfs | 81.42 ft | · | 64°F | 87 ft | Charles |
|
Charles River At Dover, Ma
7 days ago · USGS 01103500 |
154 cfs | 1.12 ft | · | 65°F | 93 ft | Charles |
|
Neponset River At Milton Village, Ma
8 days ago · USGS 011055566 |
146 cfs | 1.75 ft | · | 63°F | 5 ft | Charles |
|
Charles River At Wellesley, Ma
7 days ago · USGS 01104200 |
99 cfs | 3.04 ft | · | 64°F | 67 ft | Charles |
|
Stony Brook Reservoir At Dam Near Waltham, Ma
7 days ago · USGS 01104480 |
0 cfs | · | 36°F | 65°F | 62 ft | Charles |
|
Stony Brook At Rt 20 At Waltham, Ma
7 days ago · USGS 01104460 |
21 cfs | 5.22 ft | 62°F | 65°F | 87 ft | Charles |
|
Charles River At Waltham, Ma
7 days ago · USGS 01104500 |
112 cfs | 1.25 ft | · | 65°F | 16 ft | Charles |
|
Hobbs Bk Below Cambridge Res Nr Kendall Green, Ma
7 days ago · USGS 01104430 |
8 cfs | · | 65°F | 65°F | 145 ft | Charles |
|
Hobbs Brook At Mill St Nr Lincoln, Ma
10 years ago · USGS 01104405 |
0 cfs | 1.65 ft | 34°F | 22°F | 175 ft | Charles |
|
Aberjona River At Winchester, Ma
7 days ago · USGS 01102500 |
7 cfs | 7.24 ft | · | 64°F | 14 ft | Charles |
|
Saugus R At Saugus Iron Works At Saugus, Ma
7 days ago · USGS 01102345 |
6 cfs | 1.41 ft | · | 62°F | 14 ft | Charles |
|
Ipswich River At South Middleton, Ma
7 days ago · USGS 01101500 |
16 cfs | 2.20 ft | · | 63°F | 49 ft | Charles |
|
Ipswich River Near Ipswich, Ma
7 days ago · USGS 01102000 |
66 cfs | 3.16 ft | · | 62°F | 21 ft | Charles |
|
Parker River At Byfield, Ma
7 days ago · USGS 01101000 |
6 cfs | · | · | 63°F | 25 ft | Charles |
|
Paskamanset River Near South Dartmouth, Ma
7 days ago · USGS 01105933 |
7 cfs | 8.52 ft | · | 63°F | 29 ft | Cape Cod |
|
Quashnet River At Waquoit Village, Ma
7 days ago · USGS 011058837 |
16 cfs | 2.19 ft | · | 61°F | 3 ft | Cape Cod |
|
Herring River At North Harwich, Ma
7 days ago · USGS 01105880 |
8 cfs | 2.18 ft | · | 60°F | 21 ft | Cape Cod |
|
Jones River At Kingston, Ma
7 days ago · USGS 01105870 |
13 cfs | 3.03 ft | · | 60°F | 8 ft | Cape Cod |
|
Indian Head River At Hanover, Ma
7 days ago · USGS 01105730 |
21 cfs | 1.63 ft | · | 61°F | 8 ft | Cape Cod |
|
West River Below West Hill Dam, Ma
8 years ago · USGS 01111200 |
1 cfs | 0.99 ft | · | 71°F | 235 ft | Blackstone |
|
Blackstone River At Northbridge, Ma
2 months ago · USGS 01110500 |
1,000 cfs | 3.38 ft | · | 66°F | 260 ft | Blackstone |
|
Blackstone River, Ma
7 days ago · USGS 01109730 |
88 cfs | 1.95 ft | · | 66°F | 382 ft | Blackstone |
|
Quinsigamond River At North Grafton, Ma
7 days ago · USGS 01110000 |
11 cfs | 1.11 ft | · | 67°F | 349 ft | Blackstone |
|
Segreganset River Near Dighton, Ma
7 days ago · USGS 01109070 |
2 cfs | 1.82 ft | · | 66°F | 36 ft | Narragansett |
|
Threemile River At North Dighton, Ma
7 days ago · USGS 01109060 |
56 cfs | 2.66 ft | · | 66°F | 12 ft | Narragansett |
|
Taunton River Near Bridgewater, Ma
7 days ago · USGS 01108000 |
162 cfs | 3.58 ft | 62°F | 65°F | 10 ft | Narragansett |
|
Wading River Near Norton, Ma
7 days ago · USGS 01109000 |
22 cfs | 5.46 ft | · | 66°F | 63 ft | Narragansett |
|
French River At Webster, Ma
8 years ago · USGS 01125000 |
7 cfs | 4.30 ft | · | 71°F | 423 ft | Quinebaug |
|
Quinebaug R Bl Westville Dam Nr Southbridge, Ma
7 days ago · USGS 01123600 |
115 cfs | 3.97 ft | · | 66°F | 513 ft | Quinebaug |
|
Quinebaug R Bl E Brimfield Dam At Fiskdale, Ma
7 days ago · USGS 01123360 |
69 cfs | 3.08 ft | · | 66°F | 614 ft | Quinebaug |
|
Little River Near Oxford, Ma
8 years ago · USGS 01124500 |
4 cfs | 2.30 ft | · | 71°F | 468 ft | Quinebaug |
|
French River Below Dam, Ma
8 years ago · USGS 01124350 |
3 cfs | 0.66 ft | · | 71°F | 475 ft | Quinebaug |
|
Housatonic River Nr Ashley Falls, Ma
7 days ago · USGS 01198125 |
393 cfs | 2.73 ft | · | 69°F | 646 ft | Housatonic |
|
Green River Near Great Barrington, Ma
7 days ago · USGS 01198000 |
18 cfs | · | · | 69°F | 694 ft | Housatonic |
|
Housatonic River Near Great Barrington, Ma
7 days ago · USGS 01197500 |
208 cfs | 2.10 ft | · | 69°F | 693 ft | Housatonic |
|
East Branch Housatonic River At Coltsville, Ma
7 days ago · USGS 01197000 |
29 cfs | · | · | 68°F | 996 ft | Housatonic |
|
Hoosic River At Adams, Ma
7 days ago · USGS 01331500 |
45 cfs | 5.84 ft | · | 69°F | 831 ft | Hudson-Hoosic |
|
Hoosic River Near Williamstown, Ma
7 days ago · USGS 01332500 |
125 cfs | 5.49 ft | · | 69°F | 618 ft | Hudson-Hoosic |
|
Green River At Williamstown, Ma
7 days ago · USGS 01333000 |
56 cfs | 1.98 ft | · | 69°F | 614 ft | Hudson-Hoosic |
By river
Explore Massachusetts's named rivers
Rivers across Massachusetts with USGS gauge coverage. Tap any one to see every gauge that reports on it -- great for paddlers, anglers, and watershed researchers narrowing in on a specific drainage.
Aberjona River
Assabet River
Blackstone River
Charles River
Chicopee River
Concord River
Connecticut River
Deerfield River
French River
Green River
Herring River
Hoosic River
Housatonic River
Indian Head River
Ipswich River
Jones River
Little River
Merrimack River
Mill River
Millers River
Nashua River
Neponset River
North Nashua River
North River
Otter River
Parker River
Paskamanset River
Quaboag River
Quashnet River
Quinapoxet River
Quinebaug River
Quinsigamond River
Saugus River
Segreganset River
Sevenmile River
Shawsheen River
South River
Squannacook River
Stillwater River
Sudbury River
Swift River
Taunton River
Threemile River
Wading River
Ware River
West River
Westfield River
Flow report FAQ
About Massachusetts streamflow
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.
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