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 81% of normal, with the Penobscot River At West Enfield reporting the highest discharge in the state at 5,350 cfs and a gauge stage of 2.64 ft.
Meanwhile, the Kennebec River At The Forks is seeing a spike today — up 259% 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.
Active weather warnings for Maine
A Beach Hazards Statement remains in effect for coastal Hancock and Washington Counties through 8:00 PM EDT on July 17th. Despite warm air temperatures in the upper 70s to low 80s, water temperatures are dangerously cold at 50-55 degrees, creating significant risk of hypothermia for swimmers and water enthusiasts. Residents and visitors in coastal areas should exercise extreme caution, particularly those operating boats or paddlecraft. Additionally, thick wildfire smoke continues to impact Maine, creating unhealthy air quality conditions across the state. Severe thunderstorms remain possible throughout the region. All residents are advised to monitor local weather updates and take appropriate precautions near coastal waters and outdoors.
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 2.64 ft
Biggest 24h spike
Now 1,750 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
14 hours ago · USGS 01034500 |
5,040 cfs | 2.50 ft | · | 77°F | 125 ft | Lower Penobscot |
|
Kennebec River At North Sidney, Me
14 hours ago · USGS 01049265 |
3,210 cfs | 6.04 ft | · | 78°F | 20 ft | Lower Kennebec |
|
Androscoggin River Near Auburn, Me
14 hours ago · USGS 01059000 |
3,120 cfs | 3.09 ft | · | 78°F | 114 ft | Lower Androscoggin |
|
St. John River Below Fish R, Me
14 hours ago · USGS 01014000 |
2,400 cfs | 4.14 ft | · | 74°F | 495 ft | Fish |
|
Androscoggin River At Rumford, Me
13 hours ago · USGS 01054500 |
1,930 cfs | 3.57 ft | · | 77°F | 426 ft | Lower Androscoggin |
|
Kennebec River At Bingham, Me
14 hours ago · USGS 01046500 |
1,520 cfs | 7.29 ft | · | 75°F | 335 ft | Lower Kennebec |
|
St. Croix River At Baring, Me
13 hours ago · USGS 01021000 |
1,090 cfs | 4.92 ft | · | 77°F | 72 ft | · |
|
Saco River At Cornish, Me
13 hours ago · USGS 01066000 |
997 cfs | 2.72 ft | · | 81°F | 320 ft | Saco |
|
St. John River At Dickey, Me
13 hours ago · USGS 01010500 |
642 cfs | 4.01 ft | · | 75°F | 597 ft | Upper St. John |
|
Fish River Near Fort Kent, Me
13 hours ago · USGS 01013500 |
630 cfs | 3.77 ft | · | 74°F | 520 ft | Fish |
|
East Branch Penobscot River At Grindstone, Me
14 hours ago · USGS 01029500 |
577 cfs | 4.82 ft | · | 77°F | 353 ft | East Branch Penobscot |
|
St. Croix River At Vanceboro, Me
13 hours ago · USGS 01018500 |
551 cfs | 4.72 ft | · | · | 364 ft | · |
|
Allagash River Near Allagash, Me
14 hours ago · USGS 01011000 |
534 cfs | 2.36 ft | 65°F | 75°F | 611 ft | Allagash |
|
Aroostook River At Washburn, Me
14 hours ago · USGS 01017000 |
485 cfs | 1.43 ft | · | 74°F | 446 ft | Aroostook |
|
Kennebec River At The Forks, Me
13 hours ago · USGS 01042500 |
481 cfs | 1.97 ft | · | 73°F | 581 ft | Dead |
|
Grand Lake Stream At Grand Lake Stream, Me
14 hours ago · USGS 01019000 |
381 cfs | 2.60 ft | · | 75°F | 313 ft | St. Croix |
|
Mattawamkeag River Near Mattawamkeag, Me
14 hours ago · USGS 01030500 |
324 cfs | 4.67 ft | · | 76°F | 207 ft | Mattawamkeag |
|
Dead River Near Dead River, Me
13 hours ago · USGS 01043500 |
313 cfs | 3.63 ft | · | 73°F | 1,060 ft | Dead |
|
Aroostook River Near Masardis, Me
14 hours ago · USGS 01015800 |
281 cfs | 3.02 ft | · | 75°F | 542 ft | Aroostook |
|
Piscataquis River At Medford, Me
14 hours ago · USGS 01034000 |
248 cfs | 1.65 ft | · | 77°F | 278 ft | Piscataquis |
|
St. John River At Ninemile Bridge, Me
14 hours ago · USGS 01010000 |
243 cfs | · | · | 75°F | 933 ft | Upper St. John |
|
Sandy River Near Mercer, Me
14 hours ago · USGS 01048000 |
135 cfs | 2.94 ft | · | 77°F | 190 ft | Lower Kennebec |
|
Carrabassett River Near North Anson, Me
14 hours ago · USGS 01047000 |
120 cfs | 2.95 ft | · | 76°F | 306 ft | Lower Kennebec |
|
Spencer Stream At Mouth, Me
14 hours ago · USGS 01044550 |
73 cfs | 2.58 ft | · | 73°F | 1,056 ft | Dead |
|
North Branch Penobscot River Nr Pittston Farm, Me
13 hours ago · USGS 01027200 |
68 cfs | 4.02 ft | · | 71°F | 1,134 ft | West Branch Penobscot |
|
Narraguagus River At Cherryfield, Me
14 hours ago · USGS 01022500 |
68 cfs | 7.49 ft | 43°F | 79°F | 57 ft | Maine Coastal |
|
Piscataquis River Near Dover-Foxcroft, Me
14 hours ago · USGS 01031500 |
44 cfs | 1.72 ft | 32°F | 77°F | 360 ft | Piscataquis |
|
Seboeis River Near Shin Pond, Me
14 hours ago · USGS 01029200 |
39 cfs | 4.60 ft | · | 75°F | 553 ft | East Branch Penobscot |
|
Ellis River At South Andover, Me
14 hours ago · USGS 01054300 |
36 cfs | 4.77 ft | · | 76°F | 684 ft | Lower Androscoggin |
|
Big Black River Near Depot Mtn, Me
14 hours ago · USGS 01010070 |
36 cfs | 3.25 ft | · | 73°F | 901 ft | Upper St. John |
|
Wild River At Gilead, Me
13 hours ago · USGS 01054200 |
31 cfs | 1.26 ft | 33°F | 76°F | 722 ft | Lower Androscoggin |
|
Mousam River Near West Kennebunk, Me
13 hours ago · USGS 01069500 |
31 cfs | · | · | 82°F | 224 ft | Piscataqua-Salmon Falls |
|
Sheepscot River At North Whitefield, Me
13 hours ago · USGS 01038000 |
22 cfs | 1.80 ft | 35°F | 79°F | 126 ft | St. George-Sheepscot |
|
Swift River Near Roxbury, Me
14 hours ago · USGS 01055000 |
21 cfs | 1.09 ft | · | 75°F | 619 ft | Lower Androscoggin |
|
Meduxnekeag R Above S Br Medux. R Nr Houlton, Me
13 hours ago · USGS 01017960 |
19 cfs | 2.55 ft | · | 75°F | 404 ft | Meduxnekeag |
|
Cobbosseecontee Stream At Gardiner, Me
13 hours ago · USGS 01049500 |
18 cfs | 2.34 ft | · | 79°F | 46 ft | Lower Kennebec |
|
Piscataquis River At Blanchard, Me
14 hours ago · USGS 01031300 |
15 cfs | 3.48 ft | · | 76°F | 592 ft | Piscataquis |
|
Kingsbury Stream At Abbot Village, Me
14 hours ago · USGS 01031450 |
14 cfs | 5.57 ft | · | 77°F | 434 ft | Piscataquis |
|
Austin Stream At Bingham, Me
14 hours ago · USGS 01046000 |
12 cfs | 3.05 ft | · | 75°F | 361 ft | Lower Kennebec |
|
Kenduskeag Stream Near Bangor, Me
14 hours ago · USGS 01037000 |
11 cfs | 2.73 ft | · | 79°F | 74 ft | Lower Penobscot |
|
Old Stream Near Wesley, Me
14 hours ago · USGS 01021480 |
11 cfs | 3.73 ft | · | 76°F | 190 ft | Maine Coastal |
|
Little Androscoggin River Near South Paris, Me
14 hours ago · USGS 01057000 |
8 cfs | 1.94 ft | · | 76°F | 476 ft | Lower Androscoggin |
|
Libby Brook Near Northfield, Me
14 hours ago · USGS 01021470 |
5 cfs | 1.60 ft | · | 77°F | 149 ft | Maine Coastal |
|
Williams Brook At Phair, Me
13 hours ago · USGS 01017550 |
1 cfs | 1.33 ft | · | 74°F | 582 ft | Meduxnekeag |
|
Ducktrap River Near Lincolnville, Me
14 hours ago · USGS 01037380 |
1 cfs | 1.32 ft | 33°F | 77°F | 135 ft | Maine Coastal |
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.