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 71% of normal, with the Penobscot River At West Enfield reporting the highest discharge in the state at 6,150 cfs and a gauge stage of 2.98 ft.
Meanwhile, the Grand Lake Stream At Grand Lake Stream is seeing a spike today — up 80% 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 2.98 ft
Biggest 24h spike
Now 393 cfs
Network coverage
USGS gauges feeding 0 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 |
|---|---|---|---|---|---|---|
|
Penobscot River At West Enfield, Me
1 day ago · USGS 01034500 |
6,150 cfs | 2.98 ft | · | 83°F | 125 ft | Lower Penobscot |
|
St. John River Below Fish R, Me
1 day ago · USGS 01014000 |
3,480 cfs | 4.51 ft | · | 81°F | 495 ft | Fish |
|
Kennebec River At North Sidney, Me
1 day ago · USGS 01049265 |
3,100 cfs | 5.99 ft | · | 83°F | 20 ft | Lower Kennebec |
|
Androscoggin River At Rumford, Me
1 day ago · USGS 01054500 |
2,210 cfs | 3.74 ft | · | 85°F | 426 ft | Lower Androscoggin |
|
Androscoggin River Near Auburn, Me
1 day ago · USGS 01059000 |
2,060 cfs | 2.42 ft | · | 82°F | 114 ft | Lower Androscoggin |
|
Kennebec River At Bingham, Me
1 day ago · USGS 01046500 |
1,940 cfs | 7.47 ft | · | 80°F | 335 ft | Lower Kennebec |
|
Saco River At Cornish, Me
1 day ago · USGS 01066000 |
1,130 cfs | 2.90 ft | · | 84°F | 320 ft | Saco |
|
St. John River At Dickey, Me
1 day ago · USGS 01010500 |
916 cfs | 4.24 ft | · | 81°F | 597 ft | Upper St. John |
|
St. Croix River At Baring, Me
1 day ago · USGS 01021000 |
913 cfs | 4.69 ft | · | 81°F | 72 ft | · |
|
Fish River Near Fort Kent, Me
1 day ago · USGS 01013500 |
893 cfs | 4.04 ft | · | 81°F | 520 ft | Fish |
|
East Branch Penobscot River At Grindstone, Me
1 day ago · USGS 01029500 |
845 cfs | 5.16 ft | · | 82°F | 353 ft | East Branch Penobscot |
|
Aroostook River At Washburn, Me
1 day ago · USGS 01017000 |
753 cfs | 1.80 ft | · | 81°F | 446 ft | Aroostook |
|
Allagash River Near Allagash, Me
1 day ago · USGS 01011000 |
685 cfs | 2.54 ft | 69°F | 81°F | 611 ft | Allagash |
|
Kennebec River At The Forks, Me
1 day ago · USGS 01042500 |
503 cfs | 2.00 ft | · | 81°F | 581 ft | Dead |
|
St. Croix River At Vanceboro, Me
1 day ago · USGS 01018500 |
489 cfs | 4.58 ft | · | · | 364 ft | · |
|
Mattawamkeag River Near Mattawamkeag, Me
1 day ago · USGS 01030500 |
467 cfs | 5.01 ft | · | 82°F | 207 ft | Mattawamkeag |
|
Aroostook River Near Masardis, Me
1 day ago · USGS 01015800 |
439 cfs | 3.42 ft | · | 81°F | 542 ft | Aroostook |
|
Grand Lake Stream At Grand Lake Stream, Me
1 day ago · USGS 01019000 |
393 cfs | 2.63 ft | · | 81°F | 313 ft | St. Croix |
|
Piscataquis River At Medford, Me
1 day ago · USGS 01034000 |
346 cfs | 1.86 ft | · | 83°F | 278 ft | Piscataquis |
|
Dead River Near Dead River, Me
1 day ago · USGS 01043500 |
325 cfs | 3.67 ft | · | 82°F | 1,060 ft | Dead |
|
St. John River At Ninemile Bridge, Me
1 day ago · USGS 01010000 |
296 cfs | 1.01 ft | · | 81°F | 933 ft | Upper St. John |
|
Sandy River Near Mercer, Me
1 day ago · USGS 01048000 |
200 cfs | 3.15 ft | · | 82°F | 190 ft | Lower Kennebec |
|
Carrabassett River Near North Anson, Me
1 day ago · USGS 01047000 |
158 cfs | 3.13 ft | · | 82°F | 306 ft | Lower Kennebec |
|
Spencer Stream At Mouth, Me
1 day ago · USGS 01044550 |
112 cfs | 2.75 ft | · | 81°F | 1,056 ft | Dead |
|
North Branch Penobscot River Nr Pittston Farm, Me
1 day ago · USGS 01027200 |
79 cfs | 4.08 ft | · | 80°F | 1,134 ft | West Branch Penobscot |
|
Narraguagus River At Cherryfield, Me
1 day ago · USGS 01022500 |
78 cfs | 7.57 ft | 43°F | 79°F | 57 ft | Maine Coastal |
|
Piscataquis River Near Dover-Foxcroft, Me
1 day ago · USGS 01031500 |
65 cfs | 1.86 ft | 32°F | 82°F | 360 ft | Piscataquis |
|
Seboeis River Near Shin Pond, Me
1 day ago · USGS 01029200 |
63 cfs | 4.79 ft | · | 81°F | 553 ft | East Branch Penobscot |
|
Ellis River At South Andover, Me
1 day ago · USGS 01054300 |
54 cfs | 4.97 ft | · | 83°F | 684 ft | Lower Androscoggin |
|
Big Black River Near Depot Mtn, Me
1 day ago · USGS 01010070 |
41 cfs | 3.30 ft | · | 80°F | 901 ft | Upper St. John |
|
Mousam River Near West Kennebunk, Me
1 day ago · USGS 01069500 |
41 cfs | · | · | 83°F | 224 ft | Piscataqua-Salmon Falls |
|
Wild River At Gilead, Me
1 day ago · USGS 01054200 |
36 cfs | 1.34 ft | 33°F | 83°F | 722 ft | Lower Androscoggin |
|
Swift River Near Roxbury, Me
1 day ago · USGS 01055000 |
32 cfs | 1.25 ft | · | 83°F | 619 ft | Lower Androscoggin |
|
Sheepscot River At North Whitefield, Me
1 day ago · USGS 01038000 |
31 cfs | 1.92 ft | 35°F | 83°F | 126 ft | St. George-Sheepscot |
|
Meduxnekeag R Above S Br Medux. R Nr Houlton, Me
1 day ago · USGS 01017960 |
31 cfs | 2.74 ft | · | 81°F | 404 ft | Meduxnekeag |
|
Kingsbury Stream At Abbot Village, Me
1 day ago · USGS 01031450 |
24 cfs | 5.81 ft | · | 82°F | 434 ft | Piscataquis |
|
Piscataquis River At Blanchard, Me
1 day ago · USGS 01031300 |
21 cfs | 3.60 ft | · | 81°F | 592 ft | Piscataquis |
|
Little Androscoggin River Near South Paris, Me
1 day ago · USGS 01057000 |
20 cfs | 2.26 ft | · | 80°F | 476 ft | Lower Androscoggin |
|
Cobbosseecontee Stream At Gardiner, Me
1 day ago · USGS 01049500 |
18 cfs | 2.36 ft | · | 84°F | 46 ft | Lower Kennebec |
|
Austin Stream At Bingham, Me
1 day ago · USGS 01046000 |
17 cfs | 3.18 ft | · | 80°F | 361 ft | Lower Kennebec |
|
Kenduskeag Stream Near Bangor, Me
1 day ago · USGS 01037000 |
15 cfs | 2.79 ft | · | 83°F | 74 ft | Lower Penobscot |
|
Old Stream Near Wesley, Me
1 day ago · USGS 01021480 |
14 cfs | 3.80 ft | · | 81°F | 190 ft | Maine Coastal |
|
Libby Brook Near Northfield, Me
1 day ago · USGS 01021470 |
5 cfs | 1.60 ft | · | 81°F | 149 ft | Maine Coastal |
|
Ducktrap River Near Lincolnville, Me
1 day ago · USGS 01037380 |
2 cfs | 1.48 ft | 33°F | 81°F | 135 ft | Maine Coastal |
|
Williams Brook At Phair, Me
1 day ago · USGS 01017550 |
1 cfs | 1.38 ft | · | 80°F | 582 ft | Meduxnekeag |
See every Maine gauge ranked against normal.
- Percentile rank & % of median for all 45 gauges
- 15-day PULSE forecast on every gauge
- Custom flow alerts & full daily history
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+ |
See when every Maine run is runnable.
- Runnable-window alerts on every river run
- 15-day PULSE flow forecast per run
- Full whitewater class & gauge history
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.