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Live readings · updated daily

Water temperature in Maine

The latest readings from USGS real-time water sensors across Maine, warmest first. Snapshot updated October 19, 2026.

Warmest sensor reading right now

52°F11°C

USGS gauge West Grand Lake at Grand Lake Stream, Maine · as of 19 hrs ago

All reporting stations (warmest 50 of 75)

StationWater tempStreamflowGage heightObserved
West Grand Lake at Grand Lake Stream, MaineUSGS gauge52°F11°C——19 hrs ago
St. Croix River at Milltown, MaineUSGS gauge50°F10°C——19 hrs ago
Lewy Lake at Princeton, MaineUSGS gauge49°F10°C——19 hrs ago
E. Br. Penobscot River below Grand Lake MatagamonUSGS gauge49°F9°C190 ft³/s2.48 ft19 hrs ago
Wild River at Gilead, MaineUSGS gauge44°F7°C62 ft³/s1.64 ft19 hrs ago
Meduxnekeag River at Lowery Rd. nr Houlton, MaineUSGS gauge40°F4°C38 ft³/s1.62 ft19 hrs ago
Allagash River near Allagash, MaineUSGS gauge—558 ft³/s2.39 ft20 hrs ago
Androscoggin River at Bethel, MaineUSGS gauge——4.44 ft19 hrs ago
Androscoggin River at Rumford, MaineUSGS gauge—2,130 ft³/s3.69 ft19 hrs ago
Androscoggin River near Auburn, MaineUSGS gauge—2,130 ft³/s2.47 ft19 hrs ago
Aroostook River at Washburn, MaineUSGS gauge—423 ft³/s1.37 ft19 hrs ago
Aroostook River near Masardis, MaineUSGS gauge—191 ft³/s2.75 ft19 hrs ago
Austin Stream at Bingham, MaineUSGS gauge—81 ft³/s3.99 ft19 hrs ago
Big Black River near Depot Mtn, MaineUSGS gauge—138 ft³/s3.93 ft20 hrs ago
Black Stream near Dover-Foxcroft, MaineUSGS gauge—7 ft³/s2.61 ft19 hrs ago
Branch Brook near Kennebunk, MaineUSGS gauge—8 ft³/s1.66 ft19 hrs ago
Carrabassett River near North Anson, MaineUSGS gauge—176 ft³/s3.20 ft20 hrs ago
Cobbosseecontee Stream at Gardiner, MaineUSGS gauge—8 ft³/s2.03 ft19 hrs ago
Dead River near Dead River, MaineUSGS gauge—357 ft³/s3.77 ft19 hrs ago
Ducktrap River near Lincolnville, MaineUSGS gauge—1 ft³/s1.40 ft19 hrs ago
East Branch Penobscot River at Grindstone, MaineUSGS gauge—438 ft³/s4.65 ft20 hrs ago
East Branch Wesserunsett Stream near Athens, MaineUSGS gauge—17 ft³/s2.84 ft20 hrs ago
Ellis River at South Andover, MaineUSGS gauge—95 ft³/s5.35 ft19 hrs ago
Fish River near Fort Kent, MaineUSGS gauge—128 ft³/s2.99 ft19 hrs ago
Grand Lake Stream at Grand Lake Stream, MaineUSGS gauge—369 ft³/s2.57 ft19 hrs ago
Hardwood Brook below Glidden Brk nr Caribou, MaineUSGS gauge—2 ft³/s1.23 ft19 hrs ago
Kenduskeag Stream near Bangor, MaineUSGS gauge—37 ft³/s3.11 ft19 hrs ago
Kennebec River at Bingham, MaineUSGS gauge—1,680 ft³/s7.36 ft19 hrs ago
Kennebec River at Calumet Bridge at Augusta, MaineUSGS gauge——0.47 ft19 hrs ago
Kennebec River at Gardiner, MaineUSGS gauge——0.85 ft20 hrs ago
Kennebec River at Hallowell, MaineUSGS gauge——0.74 ft19 hrs ago
Kennebec River at North Sidney, MaineUSGS gauge—2,600 ft³/s5.64 ft19 hrs ago
Kennebec River at The Forks, MaineUSGS gauge—474 ft³/s1.96 ft19 hrs ago
Kennebec River near Madison, MaineUSGS gauge—2,030 ft³/s3.36 ft19 hrs ago
Kennebunk River near Kennebunk, MaineUSGS gauge—7 ft³/s2.32 ft19 hrs ago
Kingsbury Stream at Abbot Village, MaineUSGS gauge—47 ft³/s6.17 ft19 hrs ago
Libby Brook near Northfield, MaineUSGS gauge—9 ft³/s1.75 ft19 hrs ago
Little Androscoggin River near South Paris, MaineUSGS gauge—32 ft³/s2.47 ft19 hrs ago
Little Madawaska River at Caribou, MaineUSGS gauge—109 ft³/s3.55 ft19 hrs ago
Mattawamkeag River near Mattawamkeag, MaineUSGS gauge—74 ft³/s3.64 ft19 hrs ago
Meduxnekeag R above S Br Medux. R nr Houlton, MEUSGS gauge—11 ft³/s2.38 ft19 hrs ago
Mousam River at Route 4 near Sanford, MaineUSGS gauge—62 ft³/s1.78 ft19 hrs ago
Mousam River near West Kennebunk, MaineUSGS gauge—88 ft³/s1.03 ft19 hrs ago
Narraguagus River at Cherryfield, MaineUSGS gauge—164 ft³/s8.11 ft19 hrs ago
North Branch Penobscot River nr Pittston Farm, MEUSGS gauge—234 ft³/s4.63 ft19 hrs ago
Old Stream near Wesley, MaineUSGS gauge—12 ft³/s3.83 ft19 hrs ago
Otter Creek near Bar Harbor, MaineUSGS gauge—3 ft³/s1.91 ft20 hrs ago
Pearce Brook at Route 1 at Houlton, MaineUSGS gauge——1.75 ft19 hrs ago
Penobscot River at Bangor, MaineUSGS gauge——4.32 ft20 hrs ago
Penobscot River at Eddington, MaineUSGS gauge——2.34 ft19 hrs ago

Station links open the official monitoring page with charts and history.

About these readings

Readings come from USGS real-time monitoring stations — 6 sensors are currently reporting a water temperature in Maine. Each figure is a point measurement at one sensor, usually on a river or stream — it doesn’t describe a whole lake or shoreline, and coverage varies across the state. Data is provisional and can be revised by the USGS.

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Conditions are for general information only and can change quickly. Always judge the water in person and follow posted advisories and local guidance before swimming or paddling.