Massachusetts River Levels & Streamflow
As of Aug 4, 2026, Massachusetts rivers are running at 191% of normal across 78 USGS gauges — the highest is 8,580 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 191% of normal, with the Connecticut R At Interstate 391 Bridge At Holyoke reporting the highest discharge in the state at 8,580 cfs and a gauge stage of 7.00 ft.
Meanwhile, the Chicopee River At Indian Orchard is seeing a spike today — up 24% 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.
Active weather warnings for Massachusetts
Massachusetts residents, particularly those in Washington, Southern Bristol, Dukes, and Nantucket counties, should exercise extreme caution near coastal waters today. The National Weather Service has issued a Rip Current Statement in effect from 5 AM through 9 PM EDT on August 4th. Dangerous rip currents are expected along affected beaches, capable of sweeping even experienced swimmers away from shore into deeper water. Additionally, a flash flood warning has been issued for parts of southeastern Massachusetts as severe storms move through the region. Beachgoers should avoid swimming in flagged areas, and residents in flood-prone zones should monitor local conditions and be prepared to relocate if necessary. Check NWS Boston updates regularly for the latest warnings.
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 7.00 ft
Biggest 24h spike
Now 851 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 R At Interstate 391 Bridge At Holyoke, Ma
11 hours ago · USGS 01172010 |
12,000 cfs | 8.19 ft | · | 84°F | 43 ft | Middle Connecticut |
|
Merrimack River Bl Concord River At Lowell, Ma
11 hours ago · USGS 01100000 |
6,030 cfs | 43.63 ft | · | 85°F | 50 ft | Merrimack |
|
Connecticut River At Montague City, Ma
11 hours ago · USGS 01170500 |
5,470 cfs | 8.54 ft | · | 84°F | 111 ft | Middle Connecticut |
|
Chicopee River At Indian Orchard, Ma
11 hours ago · USGS 01177000 |
2,870 cfs | 7.33 ft | · | 84°F | 126 ft | Chicopee |
|
Deerfield River Near West Deerfield, Ma
11 hours ago · USGS 01170000 |
2,670 cfs | 4.11 ft | · | 83°F | 157 ft | Deerfield |
|
Westfield River Near Westfield, Ma
11 hours ago · USGS 01183500 |
1,790 cfs | 5.98 ft | · | 84°F | 140 ft | Westfield |
|
Millers River At Erving, Ma
11 hours ago · USGS 01166500 |
1,680 cfs | 4.21 ft | · | 82°F | 378 ft | Miller |
|
Deerfield River At Charlemont, Ma
11 hours ago · USGS 01168500 |
1,570 cfs | 3.72 ft | · | 78°F | 517 ft | Deerfield |
|
Housatonic River Nr Ashley Falls, Ma
11 hours ago · USGS 01198125 |
1,310 cfs | 5.71 ft | · | 83°F | 646 ft | Housatonic |
|
Ware River At Gibbs Crossing, Ma
11 hours ago · USGS 01173500 |
1,290 cfs | 4.24 ft | · | 81°F | 380 ft | Chicopee |
|
Nashua River At East Pepperell, Ma
11 hours ago · USGS 01096500 |
1,180 cfs | 3.59 ft | · | 84°F | 165 ft | Nashua |
|
North Nashua River Near Leominster, Ma
11 hours ago · USGS 01094500 |
1,020 cfs | 6.00 ft | · | 83°F | 274 ft | Nashua |
|
Housatonic River Near Great Barrington, Ma
11 hours ago · USGS 01197500 |
807 cfs | 3.16 ft | · | 82°F | 693 ft | Housatonic |
|
Stillwater River Near Sterling, Ma
11 hours ago · USGS 01095220 |
724 cfs | 7.37 ft | 69°F | 82°F | 403 ft | Nashua |
|
Westfield River At Knightville, Ma
11 hours ago · USGS 01179500 |
712 cfs | 4.44 ft | · | 81°F | 464 ft | Westfield |
|
Taunton River Near Bridgewater, Ma
12 hours ago · USGS 01108000 |
650 cfs | 4.71 ft | 62°F | 83°F | 10 ft | Narragansett |
|
North Nashua River At Fitchburg, Ma
11 hours ago · USGS 01094400 |
570 cfs | 4.65 ft | · | 83°F | 399 ft | Nashua |
|
Millers River Near Winchendon, Ma
11 hours ago · USGS 01162000 |
524 cfs | 6.72 ft | · | 81°F | 834 ft | Miller |
|
West Branch Westfield River At Huntington, Ma
11 hours ago · USGS 01181000 |
411 cfs | 4.77 ft | · | 81°F | 391 ft | Westfield |
|
Squannacook River Near West Groton, Ma
11 hours ago · USGS 01096000 |
408 cfs | 3.94 ft | · | 84°F | 246 ft | Nashua |
|
Hoosic River Near Williamstown, Ma
11 hours ago · USGS 01332500 |
387 cfs | 6.00 ft | · | 80°F | 618 ft | Hudson-Hoosic |
|
Ware River At Intake Works Near Barre, Ma
11 hours ago · USGS 01173000 |
357 cfs | 5.30 ft | 71°F | 80°F | 639 ft | Chicopee |
|
North River At Shattuckville, Ma
11 hours ago · USGS 01169000 |
302 cfs | 3.21 ft | · | 80°F | 459 ft | Deerfield |
|
Concord R Below R Meadow Brook, Ma
11 hours ago · USGS 01099500 |
300 cfs | 4.69 ft | · | 85°F | 67 ft | Merrimack |
|
Quaboag River At West Brimfield, Ma
11 hours ago · USGS 01176000 |
293 cfs | 3.81 ft | · | 81°F | 388 ft | Chicopee |
|
East Branch Housatonic River At Coltsville, Ma
11 hours ago · USGS 01197000 |
239 cfs | 1.74 ft | · | 80°F | 996 ft | Housatonic |
|
East Branch Swift River Near Hardwick, Ma
11 hours ago · USGS 01174500 |
221 cfs | 19.96 ft | · | 81°F | 520 ft | Chicopee |
|
Blackstone River, Ma
11 hours ago · USGS 01109730 |
207 cfs | 2.51 ft | · | 82°F | 382 ft | Blackstone |
|
West Branch Farmington River Near New Boston, Ma
11 hours ago · USGS 01185500 |
180 cfs | 3.43 ft | · | 82°F | 776 ft | Farmington |
|
Threemile River At North Dighton, Ma
11 hours ago · USGS 01109060 |
180 cfs | 3.49 ft | · | 84°F | 12 ft | Narragansett |
|
Indian Head River At Hanover, Ma
11 hours ago · USGS 01105730 |
179 cfs | 3.08 ft | · | 85°F | 8 ft | Cape Cod |
|
Quinebaug R Bl Westville Dam Nr Southbridge, Ma
11 hours ago · USGS 01123600 |
171 cfs | 4.18 ft | · | 82°F | 513 ft | Quinebaug |
|
Neponset River At Milton Village, Ma
12 hours ago · USGS 011055566 |
165 cfs | 1.76 ft | · | 85°F | 5 ft | Charles |
|
Charles River At Dover, Ma
12 hours ago · USGS 01103500 |
154 cfs | 1.08 ft | · | 84°F | 93 ft | Charles |
|
Otter River At Otter River, Ma
11 hours ago · USGS 01163200 |
153 cfs | 1.95 ft | · | 80°F | 901 ft | Miller |
|
Mill River At Northampton, Ma
11 hours ago · USGS 01171500 |
152 cfs | 6.75 ft | · | 83°F | 205 ft | Middle Connecticut |
|
Hoosic River At Adams, Ma
12 hours ago · USGS 01331500 |
142 cfs | 6.20 ft | · | 81°F | 831 ft | Hudson-Hoosic |
|
Sudbury River At Saxonville, Ma
11 hours ago · USGS 01098530 |
141 cfs | 5.76 ft | · | 85°F | 116 ft | Concord |
|
Priest Brook Near Winchendon, Ma
12 hours ago · USGS 01162500 |
131 cfs | 3.74 ft | · | 81°F | 852 ft | Miller |
|
Green River Near Great Barrington, Ma
11 hours ago · USGS 01198000 |
130 cfs | 1.56 ft | · | 82°F | 694 ft | Housatonic |
|
Assabet River At Maynard, Ma
11 hours ago · USGS 01097000 |
128 cfs | 2.29 ft | · | 84°F | 154 ft | Concord |
|
Charles River At Waltham, Ma
11 hours ago · USGS 01104500 |
121 cfs | 1.29 ft | · | 85°F | 16 ft | Charles |
|
West Branch Swift River Near Shutesbury, Ma
11 hours ago · USGS 01174565 |
115 cfs | 2.45 ft | · | 81°F | 536 ft | Chicopee |
|
Quinebaug R Bl E Brimfield Dam At Fiskdale, Ma
11 hours ago · USGS 01123360 |
103 cfs | 3.31 ft | · | 81°F | 614 ft | Quinebaug |
|
Ware River Near Barre, Ma
12 hours ago · USGS 01172500 |
100 cfs | 3.38 ft | · | 80°F | 738 ft | Chicopee |
|
Charles River At Wellesley, Ma
11 hours ago · USGS 01104200 |
99 cfs | 3.04 ft | · | 85°F | 67 ft | Charles |
|
Green River At Williamstown, Ma
11 hours ago · USGS 01333000 |
97 cfs | 2.46 ft | · | 81°F | 614 ft | Hudson-Hoosic |
|
Aberjona River At Winchester, Ma
11 hours ago · USGS 01102500 |
97 cfs | 8.37 ft | · | 85°F | 14 ft | Charles |
|
Green River Near Colrain, Ma
11 hours ago · USGS 01170100 |
94 cfs | 3.38 ft | 45°F | 81°F | 436 ft | Deerfield |
|
Segreganset River Near Dighton, Ma
12 hours ago · USGS 01109070 |
83 cfs | 2.92 ft | · | 84°F | 36 ft | Narragansett |
|
Charles River At Medway, Ma
12 hours ago · USGS 01103280 |
82 cfs | 1.31 ft | · | 83°F | 129 ft | Charles |
|
Jones River At Kingston, Ma
11 hours ago · USGS 01105870 |
81 cfs | 3.58 ft | · | 83°F | 8 ft | Cape Cod |
|
South River Near Conway, Ma
11 hours ago · USGS 01169900 |
79 cfs | 2.32 ft | · | 81°F | 456 ft | Deerfield |
|
Neponset River At Greenlodge St Near Canton, Ma
11 hours ago · USGS 01105554 |
72 cfs | 7.70 ft | · | 85°F | 46 ft | Charles |
|
Mother Brook At Dedham, Ma
11 hours ago · USGS 01104000 |
64 cfs | 81.19 ft | · | 85°F | 87 ft | Charles |
|
Quinapoxet River At Canada Mills Near Holden, Ma
11 hours ago · USGS 01095375 |
62 cfs | 7.36 ft | 71°F | 82°F | 569 ft | Nashua |
|
Quinsigamond River At North Grafton, Ma
11 hours ago · USGS 01110000 |
54 cfs | 1.67 ft | · | 83°F | 349 ft | Blackstone |
|
Swift River At West Ware, Ma
11 hours ago · USGS 01175500 |
54 cfs | 2.24 ft | · | 82°F | 370 ft | Chicopee |
|
Wading River Near Norton, Ma
11 hours ago · USGS 01109000 |
48 cfs | 5.80 ft | · | 84°F | 63 ft | Narragansett |
|
Ipswich River Near Ipswich, Ma
11 hours ago · USGS 01102000 |
39 cfs | 3.06 ft | · | 84°F | 21 ft | Charles |
|
Shawsheen River Near Wilmington, Ma
11 hours ago · USGS 01100600 |
37 cfs | 2.64 ft | · | 85°F | 95 ft | Merrimack |
|
East Branch Neponset River At Canton, Ma
11 hours ago · USGS 01105500 |
34 cfs | 1.26 ft | 79°F | 84°F | 80 ft | Charles |
|
Sevenmile River Near Spencer, Ma
11 hours ago · USGS 01175670 |
34 cfs | 9.93 ft | · | 81°F | 650 ft | Chicopee |
|
Ipswich River At South Middleton, Ma
11 hours ago · USGS 01101500 |
32 cfs | 2.49 ft | · | 84°F | 49 ft | Charles |
|
Paskamanset River Near South Dartmouth, Ma
11 hours ago · USGS 01105933 |
32 cfs | 9.02 ft | · | 81°F | 29 ft | Cape Cod |
|
Saugus R At Saugus Iron Works At Saugus, Ma
11 hours ago · USGS 01102345 |
24 cfs | 2.11 ft | · | 85°F | 14 ft | Charles |
|
Lake Cochituate Outlet At Framingham, Ma
11 hours ago · USGS 01098500 |
21 cfs | 4.44 ft | · | 84°F | 129 ft | Concord |
|
Stony Brook At Rt 20 At Waltham, Ma
11 hours ago · USGS 01104460 |
21 cfs | 5.21 ft | 71°F | 84°F | 87 ft | Charles |
|
Quashnet River At Waquoit Village, Ma
11 hours ago · USGS 011058837 |
16 cfs | 2.09 ft | · | 79°F | 3 ft | Cape Cod |
|
Neponset River At Norwood, Ma
11 hours ago · USGS 01105000 |
13 cfs | 5.79 ft | · | 85°F | 51 ft | Charles |
|
Old Swamp River Near South Weymouth, Ma
11 hours ago · USGS 01105600 |
12 cfs | 2.92 ft | · | 85°F | 87 ft | Cape Cod |
|
Nashoba Brook Near Acton, Ma
11 hours ago · USGS 01097300 |
7 cfs | 3.83 ft | · | 84°F | 155 ft | Concord |
|
Herring River At North Harwich, Ma
12 hours ago · USGS 01105880 |
4 cfs | 1.97 ft | · | 81°F | 21 ft | Cape Cod |
|
Parker River At Byfield, Ma
11 hours ago · USGS 01101000 |
2 cfs | · | · | 85°F | 25 ft | Charles |
|
Whitmans Pond Fish Ladder At East Weymouth, Ma
12 hours ago · USGS 01105608 |
1 cfs | 31.37 ft | · | 85°F | 52 ft | Charles |
|
Whitmans Pond, Ma
11 hours ago · USGS 01105606 |
1 cfs | 71.80 ft | · | 85°F | 75 ft | Charles |
|
Hobbs Bk Below Cambridge Res Nr Kendall Green, Ma
11 hours ago · USGS 01104430 |
0 cfs | · | 68°F | 84°F | 145 ft | Charles |
|
Stony Brook Reservoir At Dam Near Waltham, Ma
11 hours ago · USGS 01104480 |
0 cfs | · | 36°F | 85°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 4, 2026, Massachusetts rivers are running at 191% of normal across 78 USGS streamgauges, and the Connecticut R At Interstate 391 Bridge At Holyoke is reporting the highest discharge at 8,580 cfs. The full sortable gauge table is below.
Which Massachusetts river is running highest right now?
As of August 4, 2026, the highest discharge in Massachusetts is 8,580 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.