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
78
State percent normal
83%
Paddle runs
0
Updated
Jul 19
Open the Massachusetts flow layer on the map
Every USGS streamgauge filtered to Massachusetts.
Open the map →
July
19
2026
Flow briefing
Streamflow levels across Massachusetts are currently 83% of normal, with the Connecticut River At Montague City reporting the highest discharge in the state at 7,050 cfs and a gauge stage of 9.27 ft.
Meanwhile, the Connecticut River At Montague City is seeing a spike today — up 90% 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.
River levels near Massachusetts towns
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
83%
100% is the historical norm. Below 70% indicates drought; above 130% can flag elevated flood risk.
Highest discharge
Connecticut River At Montague City
7,050 cfs
Gauge stage 9.27 ft
Biggest 24h spike
Connecticut River At Montague City
+90%
Now 7,050 cfs
Network coverage
Gauges + rivers tracked
78 + 0
USGS gauges feeding 0 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 |
|---|---|---|---|---|---|---|
|
Connecticut River At Montague City, Ma
1 day ago · USGS 01170500 |
7,050 cfs | 9.27 ft | · | 77°F | 111 ft | Middle Connecticut |
|
Connecticut R At Interstate 391 Bridge At Holyoke, Ma
1 day ago · USGS 01172010 |
3,510 cfs | 4.86 ft | · | 81°F | 43 ft | Middle Connecticut |
|
Merrimack River Bl Concord River At Lowell, Ma
1 day ago · USGS 01100000 |
1,480 cfs | 41.75 ft | · | 82°F | 50 ft | Merrimack |
|
Deerfield River Near West Deerfield, Ma
1 day ago · USGS 01170000 |
322 cfs | 2.16 ft | · | 77°F | 157 ft | Deerfield |
|
Chicopee River At Indian Orchard, Ma
1 day ago · USGS 01177000 |
238 cfs | 4.14 ft | · | 81°F | 126 ft | Chicopee |
|
Deerfield River At Charlemont, Ma
1 day ago · USGS 01168500 |
187 cfs | 1.93 ft | · | 78°F | 517 ft | Deerfield |
|
Housatonic River Nr Ashley Falls, Ma
1 day ago · USGS 01198125 |
183 cfs | 1.72 ft | · | 80°F | 646 ft | Housatonic |
|
Housatonic River Near Great Barrington, Ma
1 day ago · USGS 01197500 |
136 cfs | 1.82 ft | · | 78°F | 693 ft | Housatonic |
|
Concord R Below R Meadow Brook, Ma
1 day ago · USGS 01099500 |
98 cfs | 4.00 ft | · | 83°F | 67 ft | Merrimack |
|
Westfield River Near Westfield, Ma
1 day ago · USGS 01183500 |
96 cfs | 2.99 ft | · | 80°F | 140 ft | Westfield |
|
Millers River At Erving, Ma
1 day ago · USGS 01166500 |
81 cfs | 1.64 ft | · | 76°F | 378 ft | Miller |
|
Nashua River At East Pepperell, Ma
1 day ago · USGS 01096500 |
76 cfs | · | · | 83°F | 165 ft | Nashua |
|
Taunton River Near Bridgewater, Ma
1 day ago · USGS 01108000 |
67 cfs | 3.08 ft | 62°F | 83°F | 10 ft | Narragansett |
|
Hoosic River Near Williamstown, Ma
1 day ago · USGS 01332500 |
65 cfs | 5.32 ft | · | 79°F | 618 ft | Hudson-Hoosic |
|
Charles River At Waltham, Ma
1 day ago · USGS 01104500 |
58 cfs | · | · | 84°F | 16 ft | Charles |
|
Charles River At Dover, Ma
1 day ago · USGS 01103500 |
55 cfs | · | · | 84°F | 93 ft | Charles |
|
Charles River At Wellesley, Ma
1 day ago · USGS 01104200 |
54 cfs | 2.88 ft | · | 84°F | 67 ft | Charles |
|
Blackstone River, Ma
1 day ago · USGS 01109730 |
49 cfs | 1.64 ft | · | 80°F | 382 ft | Blackstone |
|
Neponset River At Milton Village, Ma
1 day ago · USGS 011055566 |
49 cfs | 3.05 ft | · | 83°F | 5 ft | Charles |
|
Quaboag River At West Brimfield, Ma
1 day ago · USGS 01176000 |
49 cfs | 2.60 ft | · | 79°F | 388 ft | Chicopee |
|
Swift River At West Ware, Ma
1 day ago · USGS 01175500 |
48 cfs | 2.18 ft | · | 79°F | 370 ft | Chicopee |
|
Ware River At Gibbs Crossing, Ma
1 day ago · USGS 01173500 |
47 cfs | 1.99 ft | · | 79°F | 380 ft | Chicopee |
|
Westfield River At Knightville, Ma
1 day ago · USGS 01179500 |
46 cfs | 2.67 ft | · | 78°F | 464 ft | Westfield |
|
North Nashua River Near Leominster, Ma
1 day ago · USGS 01094500 |
38 cfs | 1.95 ft | · | 82°F | 274 ft | Nashua |
|
Quinebaug R Bl Westville Dam Nr Southbridge, Ma
1 day ago · USGS 01123600 |
31 cfs | 3.32 ft | · | 79°F | 513 ft | Quinebaug |
|
Hoosic River At Adams, Ma
1 day ago · USGS 01331500 |
31 cfs | 5.75 ft | · | 80°F | 831 ft | Hudson-Hoosic |
|
Assabet River At Maynard, Ma
1 day ago · USGS 01097000 |
26 cfs | 1.39 ft | · | 83°F | 154 ft | Concord |
|
Hobbs Bk Below Cambridge Res Nr Kendall Green, Ma
1 day ago · USGS 01104430 |
23 cfs | 1.28 ft | 77°F | 83°F | 145 ft | Charles |
|
Stony Brook At Rt 20 At Waltham, Ma
1 day ago · USGS 01104460 |
23 cfs | 5.25 ft | 74°F | 83°F | 87 ft | Charles |
|
North River At Shattuckville, Ma
1 day ago · USGS 01169000 |
22 cfs | 1.19 ft | · | 77°F | 459 ft | Deerfield |
|
Ipswich River Near Ipswich, Ma
1 day ago · USGS 01102000 |
22 cfs | 2.84 ft | · | 82°F | 21 ft | Charles |
|
Sudbury River At Saxonville, Ma
1 day ago · USGS 01098530 |
21 cfs | 4.39 ft | · | 83°F | 116 ft | Concord |
|
West Branch Farmington River Near New Boston, Ma
1 day ago · USGS 01185500 |
20 cfs | 2.22 ft | · | 79°F | 776 ft | Farmington |
|
Ware River At Intake Works Near Barre, Ma
1 day ago · USGS 01173000 |
19 cfs | 3.20 ft | 72°F | 79°F | 639 ft | Chicopee |
|
Quinebaug R Bl E Brimfield Dam At Fiskdale, Ma
1 day ago · USGS 01123360 |
19 cfs | 2.23 ft | · | 79°F | 614 ft | Quinebaug |
|
West Branch Westfield River At Huntington, Ma
1 day ago · USGS 01181000 |
19 cfs | 2.98 ft | · | 78°F | 391 ft | Westfield |
|
Charles River At Medway, Ma
1 day ago · USGS 01103280 |
18 cfs | · | · | 83°F | 129 ft | Charles |
|
East Branch Housatonic River At Coltsville, Ma
1 day ago · USGS 01197000 |
18 cfs | · | · | 78°F | 996 ft | Housatonic |
|
Green River At Williamstown, Ma
1 day ago · USGS 01333000 |
18 cfs | 1.53 ft | · | 80°F | 614 ft | Hudson-Hoosic |
|
Neponset River At Greenlodge St Near Canton, Ma
1 day ago · USGS 01105554 |
17 cfs | 6.42 ft | · | 84°F | 46 ft | Charles |
|
Threemile River At North Dighton, Ma
1 day ago · USGS 01109060 |
17 cfs | 2.30 ft | · | 83°F | 12 ft | Narragansett |
|
Quashnet River At Waquoit Village, Ma
1 day ago · USGS 011058837 |
15 cfs | 2.04 ft | · | 77°F | 3 ft | Cape Cod |
|
Mother Brook At Dedham, Ma
1 day ago · USGS 01104000 |
14 cfs | 80.25 ft | · | 84°F | 87 ft | Charles |
|
Green River Near Great Barrington, Ma
1 day ago · USGS 01198000 |
14 cfs | · | · | 79°F | 694 ft | Housatonic |
|
Paskamanset River Near South Dartmouth, Ma
1 day ago · USGS 01105933 |
12 cfs | 8.54 ft | · | 76°F | 29 ft | Cape Cod |
|
Green River Near Colrain, Ma
1 day ago · USGS 01170100 |
11 cfs | 2.48 ft | 45°F | 77°F | 436 ft | Deerfield |
|
Squannacook River Near West Groton, Ma
1 day ago · USGS 01096000 |
11 cfs | 1.40 ft | · | 82°F | 246 ft | Nashua |
|
Jones River At Kingston, Ma
1 day ago · USGS 01105870 |
10 cfs | 2.88 ft | · | 82°F | 8 ft | Cape Cod |
|
Otter River At Otter River, Ma
1 day ago · USGS 01163200 |
9 cfs | · | · | 78°F | 901 ft | Miller |
|
Ware River Near Barre, Ma
1 day ago · USGS 01172500 |
9 cfs | 2.44 ft | · | 79°F | 738 ft | Chicopee |
|
Shawsheen River Near Wilmington, Ma
1 day ago · USGS 01100600 |
9 cfs | 2.05 ft | · | 83°F | 95 ft | Merrimack |
|
Mill River At Northampton, Ma
1 day ago · USGS 01171500 |
9 cfs | 5.37 ft | · | 79°F | 205 ft | Middle Connecticut |
|
North Nashua River At Fitchburg, Ma
1 day ago · USGS 01094400 |
8 cfs | 2.10 ft | · | 81°F | 399 ft | Nashua |
|
Indian Head River At Hanover, Ma
1 day ago · USGS 01105730 |
7 cfs | 1.30 ft | · | 83°F | 8 ft | Cape Cod |
|
South River Near Conway, Ma
1 day ago · USGS 01169900 |
7 cfs | 1.34 ft | · | 77°F | 456 ft | Deerfield |
|
Millers River Near Winchendon, Ma
1 day ago · USGS 01162000 |
6 cfs | 3.72 ft | · | 79°F | 834 ft | Miller |
|
Wading River Near Norton, Ma
1 day ago · USGS 01109000 |
6 cfs | 5.09 ft | · | 83°F | 63 ft | Narragansett |
|
Quinsigamond River At North Grafton, Ma
1 day ago · USGS 01110000 |
5 cfs | · | · | 81°F | 349 ft | Blackstone |
|
Neponset River At Norwood, Ma
1 day ago · USGS 01105000 |
5 cfs | 5.60 ft | · | 83°F | 51 ft | Charles |
|
East Branch Neponset River At Canton, Ma
1 day ago · USGS 01105500 |
4 cfs | · | 79°F | 84°F | 80 ft | Charles |
|
Ipswich River At South Middleton, Ma
1 day ago · USGS 01101500 |
4 cfs | 1.95 ft | · | 83°F | 49 ft | Charles |
|
Aberjona River At Winchester, Ma
1 day ago · USGS 01102500 |
4 cfs | 6.86 ft | · | 83°F | 14 ft | Charles |
|
Saugus R At Saugus Iron Works At Saugus, Ma
1 day ago · USGS 01102345 |
4 cfs | 1.23 ft | · | 83°F | 14 ft | Charles |
|
Stillwater River Near Sterling, Ma
1 day ago · USGS 01095220 |
3 cfs | 3.82 ft | 66°F | 81°F | 403 ft | Nashua |
|
East Branch Swift River Near Hardwick, Ma
1 day ago · USGS 01174500 |
3 cfs | 19.30 ft | · | 78°F | 520 ft | Chicopee |
|
Herring River At North Harwich, Ma
1 day ago · USGS 01105880 |
3 cfs | 1.87 ft | · | 76°F | 21 ft | Cape Cod |
|
Priest Brook Near Winchendon, Ma
1 day ago · USGS 01162500 |
2 cfs | 2.29 ft | · | 79°F | 852 ft | Miller |
|
Parker River At Byfield, Ma
1 day ago · USGS 01101000 |
2 cfs | · | · | 83°F | 25 ft | Charles |
|
Quinapoxet River At Canada Mills Near Holden, Ma
1 day ago · USGS 01095375 |
2 cfs | 6.25 ft | 64°F | 80°F | 569 ft | Nashua |
|
Lake Cochituate Outlet At Framingham, Ma
1 day ago · USGS 01098500 |
2 cfs | 1.07 ft | · | 83°F | 129 ft | Concord |
|
West Branch Swift River Near Shutesbury, Ma
1 day ago · USGS 01174565 |
2 cfs | 1.06 ft | · | 78°F | 536 ft | Chicopee |
|
Nashoba Brook Near Acton, Ma
1 day ago · USGS 01097300 |
1 cfs | 3.33 ft | · | 82°F | 155 ft | Concord |
|
Whitmans Pond, Ma
1 day ago · USGS 01105606 |
1 cfs | 71.80 ft | · | 83°F | 75 ft | Charles |
|
Whitmans Pond Fish Ladder At East Weymouth, Ma
1 day ago · USGS 01105608 |
1 cfs | 31.29 ft | · | 83°F | 52 ft | Charles |
|
Sevenmile River Near Spencer, Ma
1 day ago · USGS 01175670 |
0 cfs | 9.11 ft | · | 79°F | 650 ft | Chicopee |
|
Old Swamp River Near South Weymouth, Ma
1 day ago · USGS 01105600 |
0 cfs | 2.40 ft | · | 84°F | 87 ft | Cape Cod |
|
Segreganset River Near Dighton, Ma
1 day ago · USGS 01109070 |
0 cfs | 1.57 ft | · | 82°F | 36 ft | Narragansett |
|
Stony Brook Reservoir At Dam Near Waltham, Ma
1 day ago · USGS 01104480 |
0 cfs | · | 36°F | 84°F | 62 ft | Charles |
🔒 Premium
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
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.
Browse other states
Streamflow in every state
Alabama
Alaska
Arizona
Arkansas
California
Colorado
Connecticut
Delaware
District Of Columbia
Florida
Georgia
Hawaii
Idaho
Illinois
Indiana
Iowa
Kansas
Kentucky
Louisiana
Maine
Maryland
Massachusetts
Michigan
Minnesota
Mississippi
Missouri
Montana
Nebraska
Nevada
New Hampshire
New Jersey
New Mexico
New York
North Carolina
North Dakota
Ohio
Oklahoma
Oregon
Pennsylvania
Puerto Rico
Rhode Island
South Carolina
South Dakota
Tennessee
Texas
Utah
Vermont
Virgin Islands
Virginia
Washington
West Virginia
Wisconsin
Wyoming