Maine streamflow
Live discharge, gauge height, water temperature, and percent-of-normal readings from every USGS streamgauge in Maine. Built for paddlers, anglers, water managers, and flood researchers.
Streamflow levels across Maine are currently 60% of normal, with the Penobscot River At West Enfield reporting the highest discharge in the state at 11,300 cfs and a gauge stage of 4.77 ft.
Meanwhile, the Penobscot River At West Enfield is seeing a spike today — up 1% 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 Maine's named rivers.
State-wide streamflow overview
The Maine 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 4.77 ft
Biggest 24h spike
Now 11,300 cfs
Network coverage
USGS gauges feeding 26 named rivers in Maine.
Maine USGS streamgauges
Every USGS gauge Snoflo tracks in Maine. 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 |
|---|---|---|---|---|---|---|
|
St. John River At Ninemile Bridge, Me
7 days ago · USGS 01010000 |
1,110 cfs | 2.07 ft | · | 60°F | 933 ft | Upper St. John |
|
Big Black River Near Depot Mtn, Me
7 days ago · USGS 01010070 |
130 cfs | 3.88 ft | · | 59°F | 901 ft | Upper St. John |
|
St. John River At Dickey, Me
7 days ago · USGS 01010500 |
2,750 cfs | 5.30 ft | · | 60°F | 597 ft | Upper St. John |
|
St. John River Below Fish R, Me
7 days ago · USGS 01014000 |
9,310 cfs | 6.38 ft | · | 59°F | 495 ft | Fish |
|
Allagash River Near Allagash, Me
7 days ago · USGS 01011000 |
1,810 cfs | 3.56 ft | 52°F | 60°F | 611 ft | Allagash |
|
Fish River Near Fort Kent, Me
7 days ago · USGS 01013500 |
2,530 cfs | 5.43 ft | · | 59°F | 520 ft | Fish |
|
Aroostook River Near Masardis, Me
7 days ago · USGS 01015800 |
1,200 cfs | 4.80 ft | · | 62°F | 542 ft | Aroostook |
|
Aroostook River At Washburn, Me
7 days ago · USGS 01017000 |
2,050 cfs | 3.00 ft | · | 60°F | 446 ft | Aroostook |
|
Meduxnekeag River Near Houlton, Me
10 years ago · USGS 01018000 |
222 cfs | 3.33 ft | · | 69°F | 344 ft | Meduxnekeag |
|
Meduxnekeag R Above S Br Medux. R Nr Houlton, Me
7 days ago · USGS 01017960 |
92 cfs | 3.29 ft | · | 63°F | 404 ft | Meduxnekeag |
|
Williams Brook At Phair, Me
7 days ago · USGS 01017550 |
4 cfs | 1.55 ft | · | 60°F | 582 ft | Meduxnekeag |
|
North Branch Penobscot River Nr Pittston Farm, Me
7 days ago · USGS 01027200 |
185 cfs | 4.49 ft | · | 59°F | 1,134 ft | West Branch Penobscot |
|
East Branch Penobscot River At Grindstone, Me
7 days ago · USGS 01029500 |
2,020 cfs | 6.18 ft | · | 64°F | 353 ft | East Branch Penobscot |
|
Seboeis River Near Shin Pond, Me
7 days ago · USGS 01029200 |
294 cfs | 5.86 ft | · | 62°F | 553 ft | East Branch Penobscot |
|
Mattawamkeag River Near Mattawamkeag, Me
7 days ago · USGS 01030500 |
1,940 cfs | 6.89 ft | · | 64°F | 207 ft | Mattawamkeag |
|
Piscataquis River Near Dover-Foxcroft, Me
7 days ago · USGS 01031500 |
266 cfs | 2.60 ft | 32°F | 67°F | 360 ft | Piscataquis |
|
Kingsbury Stream At Abbot Village, Me
7 days ago · USGS 01031450 |
88 cfs | 6.61 ft | · | 67°F | 434 ft | Piscataquis |
|
Piscataquis River At Medford, Me
7 days ago · USGS 01034000 |
1,540 cfs | 3.26 ft | · | 66°F | 278 ft | Piscataquis |
|
Piscataquis River At Blanchard, Me
7 days ago · USGS 01031300 |
113 cfs | 4.38 ft | · | 65°F | 592 ft | Piscataquis |
|
Kenduskeag Stream Near Bangor, Me
7 days ago · USGS 01037000 |
125 cfs | 3.67 ft | · | 67°F | 74 ft | Lower Penobscot |
|
Penobscot River At West Enfield, Me
7 days ago · USGS 01034500 |
11,300 cfs | 4.77 ft | · | 66°F | 125 ft | Lower Penobscot |
|
Kennebec River At The Forks, Me
7 days ago · USGS 01042500 |
660 cfs | 2.19 ft | · | 64°F | 581 ft | Dead |
|
Dead River Near Dead River, Me
7 days ago · USGS 01043500 |
361 cfs | 3.78 ft | · | 63°F | 1,060 ft | Dead |
|
Spencer Stream At Mouth, Me
7 days ago · USGS 01044550 |
258 cfs | 3.22 ft | · | 63°F | 1,056 ft | Dead |
|
Cobbosseecontee Stream At Gardiner, Me
7 days ago · USGS 01049500 |
713 cfs | 5.24 ft | · | 68°F | 46 ft | Lower Kennebec |
|
Kennebec River At North Sidney, Me
7 days ago · USGS 01049265 |
4,910 cfs | 6.73 ft | · | 69°F | 20 ft | Lower Kennebec |
|
Sandy River Near Mercer, Me
7 days ago · USGS 01048000 |
815 cfs | 4.19 ft | · | 69°F | 190 ft | Lower Kennebec |
|
Sebasticook River Near Pittsfield, Me
12 years ago · USGS 01049000 |
594 cfs | 3.17 ft | · | 62°F | 144 ft | Lower Kennebec |
|
Carrabassett River Near North Anson, Me
7 days ago · USGS 01047000 |
517 cfs | 4.08 ft | · | 68°F | 306 ft | Lower Kennebec |
|
Kennebec River At Bingham, Me
7 days ago · USGS 01046500 |
4,610 cfs | 8.32 ft | · | 65°F | 335 ft | Lower Kennebec |
|
Austin Stream At Bingham, Me
7 days ago · USGS 01046000 |
74 cfs | 3.96 ft | · | 65°F | 361 ft | Lower Kennebec |
|
Androscoggin River Near Auburn, Me
7 days ago · USGS 01059000 |
6,660 cfs | 4.71 ft | · | 68°F | 114 ft | Lower Androscoggin |
|
Nezinscot River At Turner Center, Me
8 months ago · USGS 01055500 |
43 cfs | 1.21 ft | · | 61°F | 284 ft | Lower Androscoggin |
|
Little Androscoggin River Near South Paris, Me
7 days ago · USGS 01057000 |
98 cfs | 3.07 ft | · | 66°F | 476 ft | Lower Androscoggin |
|
Wild River At Gilead, Me
7 days ago · USGS 01054200 |
133 cfs | 2.09 ft | 33°F | 66°F | 722 ft | Lower Androscoggin |
|
Androscoggin River At Rumford, Me
7 days ago · USGS 01054500 |
3,900 cfs | 4.60 ft | · | 68°F | 426 ft | Lower Androscoggin |
|
Ellis River At South Andover, Me
7 days ago · USGS 01054300 |
226 cfs | 6.38 ft | · | 67°F | 684 ft | Lower Androscoggin |
|
Swift River Near Roxbury, Me
7 days ago · USGS 01055000 |
132 cfs | 1.95 ft | · | 67°F | 619 ft | Lower Androscoggin |
|
St. Croix River At Baring, Me
7 days ago · USGS 01021000 |
1,150 cfs | 4.99 ft | · | 66°F | 72 ft | · |
|
Grand Lake Stream At Grand Lake Stream, Me
7 days ago · USGS 01019000 |
317 cfs | 2.43 ft | · | 65°F | 313 ft | St. Croix |
|
Ducktrap River Near Lincolnville, Me
7 days ago · USGS 01037380 |
19 cfs | 2.21 ft | 33°F | 68°F | 135 ft | Maine Coastal |
|
Narraguagus River At Cherryfield, Me
7 days ago · USGS 01022500 |
230 cfs | 8.41 ft | 43°F | 67°F | 57 ft | Maine Coastal |
|
Libby Brook Near Northfield, Me
7 days ago · USGS 01021470 |
6 cfs | 1.65 ft | · | 66°F | 149 ft | Maine Coastal |
|
East Br Bear Brook Near Beddington, Me
9 years ago · USGS 01022294 |
0 cfs | 4.98 ft | · | 60°F | 942 ft | Maine Coastal |
|
West Br Bear Brook Near Beddington, Me
13 years ago · USGS 01022295 |
1 cfs | 5.56 ft | · | 60°F | 964 ft | Maine Coastal |
|
Dennys River At Dennysville, Me
13 years ago · USGS 01021200 |
1,010 cfs | 4.33 ft | · | 59°F | 74 ft | Maine Coastal |
|
Old Stream Near Wesley, Me
7 days ago · USGS 01021480 |
27 cfs | 4.01 ft | · | 65°F | 190 ft | Maine Coastal |
|
Sheepscot River At North Whitefield, Me
7 days ago · USGS 01038000 |
230 cfs | 2.92 ft | 35°F | 68°F | 126 ft | St. George-Sheepscot |
|
Presumpscot River At Westbrook, Me
5 years ago · USGS 01064118 |
· | 4.74 ft | · | 42°F | 48 ft | Presumpscot |
|
Saco River At Cornish, Me
7 days ago · USGS 01066000 |
5,720 cfs | 6.21 ft | · | 69°F | 320 ft | Saco |
|
Mousam River Near West Kennebunk, Me
7 days ago · USGS 01069500 |
162 cfs | 1.32 ft | · | 65°F | 224 ft | Piscataqua-Salmon Falls |
Maine river runs
Paddleable river sections in Maine keyed to USGS gauges, with live streamflow and whitewater class.
| River run | Status | Streamflow | Air temp | Class |
|---|---|---|---|---|
| Kennebec Gorge | · | · | 45°F | III TO IV+ |
Explore Maine's named rivers
Rivers across Maine 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.
About Maine streamflow
Where does the Maine 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 Maine 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 Maine 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.