New Hampshire river levels

66 active gauges · data refreshed 8 min ago (NWS backup feed)

33 gauges with a water-level reading and an official flood stage; 0 at action level below flood stage. 17 gauges without a usable water-level reading; 16 with a reading but no published minor flood stage.

This summary uses the latest available readings, which may be delayed. Check each gauge’s observation time below. Below-stage readings do not rule out flooding elsewhere, including streets and unmonitored waterways.

Rivers: Connecticut River · Ashuelot River · Androscoggin River · Merrimack River · Contoocook River · Saco River · Cocheco River · Lamprey River · Exeter River · Pemigewasset River · Suncook River · Piscataquog River · Spicket River · Ammonoosuc River

Towns: Goffstown · Dover · Keene · Conway · Peterborough

GaugeStatusStageFlowUpdated
Ammonoosuc River at Bethlehem Junction, NHNo flooding1.53 ft78 cfs
Androscoggin River near Gorham, NHNo flooding2.78 ft1,110 cfs
Ashuelot River above the Branch, at Keene, NHNo flooding64.91 ft
Ashuelot River at Hinsdale, NHNo flooding3.03 ft87 cfs
Ashuelot River at West Swanzey, NHNo flooding5.04 ft63 cfs
Ashuelot River near Gilsum, NHNo flooding1.47 ft9 cfs
Baker River near Rumney, NHNo flooding0.52 ft50 cfs
Cockermouth River below Hardy Brook, at Groton, NHNo flooding1.42 ft12 cfs
Cold River at High Street, at Alstead, NHNo flooding1.69 ft16 cfs
Connecticut River at North Stratford, NHNo flooding3.70 ft818 cfs
Connecticut River at North Walpole, NHNo flooding6.85 ft2,860 cfs
Connecticut River at West Lebanon, NHNo flooding4.57 ft1,760 cfs
Connecticut River near Dalton, NHNo flooding8.13 ft1,240 cfs
Contoocook River at Peterborough, NHNo flooding1.30 ft25 cfs
Contoocook River near Henniker, NHNo flooding4.81 ft104 cfs
Lamprey River near Newmarket, NHNo flooding0.60 ft8 cfs
Merrimack River near Goffs Falls, below Manchester, NHNo flooding3.52 ft1,750 cfs
Merrimack River at Franklin Junction, NHNo flooding3.67 ft524 cfs
Merrimack River at Nashua, NHNo flooding4.63 ft2,580 cfs
Pemigewasset River at Plymouth, NHNo flooding0.80 ft282 cfs
Pemigewasset River at Woodstock, NHNo flooding2.74 ft228 cfs
Piscataquog River near Goffstown, NHNo flooding3.08 ft19 cfs
Saco River at River Street, at Bartlett, NHNo flooding2.85 ft100 cfs
Saco River near Conway, NHNo flooding2.33 ft179 cfs
Smith River near Bristol, NHNo flooding1.97 ft34 cfs
Souhegan River (Site Wlr-1) near Milford, NHNo flooding2.95 ft14 cfs
Souhegan River at Merrimack, NHNo flooding2.26 ft38 cfs
Spicket River near Methuen, MANo flooding3.48 ft10 cfs
Sugar River at West Claremont, NHNo flooding1.25 ft91 cfs
Suncook River at North Chichester, NHNo flooding2.46 ft7 cfs
Upper Ammonoosuc River near Groveton, NHNo flooding2.30 ft223 cfs
Warner River at Davisville, NHNo flooding3.14 ft17 cfs
Winnipesaukee River at Tilton, NHNo flooding2.74 ft360 cfs
Ammonoosuc River below Lisbon Dam, at Lisbon, NHNo current data
Androscoggin River below Bog Brook at Cambridge NHNo current data
Ashuelot River below Surry Mt Dam, near Keene, NHNo current data
Blackwater River near Webster, NHNo current data
Cocheco River, at Spaulding Turnpike, at Dover, NHNo current data
Contoocook River below Hopkinton Dam at W Hopkinton, NHNo current data
Lucy Brook near North Conway, NHNo current data
Mink Brook near Etna, NHNo current data
North Branch River near Antrim, NHNo current data
Nubanusit Brook below Macdowell Dam near Peterborough NHNo current data
Piscataquog River below Everett Dam, near E Weare, NHNo current data
S Br Ashuelot River at Webb, near Marlborough, NHNo current data
S Br Piscataquog River at River Rd, near Goffstown, NHNo current data
Stony Brook Tributary near Temple, NHNo current data
Sugar River 0.2 Mi below Nh 11, at Sunapee, NHNo current data
Suncook River at Nh 28, near Suncook, NHNo current data
Swift River 0.5 Mi below Hobbs Br, near Conway, NHNo current data
Androscoggin River at Errol, NHNo flood stage defined1.73 ft1,000 cfs
Bearcamp River at South Tamworth, NHNo flood stage defined3.68 ft30 cfs
Beaver Brook at North Pelham, NHNo flood stage defined5.45 ft3 cfs
Cocheco River near Rochester, NHNo flood stage defined2.38 ft5 cfs
Connecticut River below Indian Stream near Pittsburg, NHNo flood stage defined2.76 ft332 cfs
Diamond River near Wentworth Location, NHNo flood stage defined1.97 ft50 cfs
East Branch Pemigewasset River at Lincoln, NHNo flood stage defined4.09 ft160 cfs
Exeter River at Haigh Road, near Brentwood, NHNo flood stage defined3.83 ft3 cfs
Exeter River at Odell Road, near Sandown, NHNo flood stage defined0.29 ft0 cfs
Isinglass River at Rochester Neck Rd, near Dover, NHNo flood stage defined2.75 ft6 cfs
Lamprey River at Langford Road, at Raymond, NHNo flood stage defined1.59 ft2 cfs
Oyster River near Durham, NHNo flood stage defined0.57 ft0 cfs
Peabody River at Gorham, New HampshireNo flood stage defined2.27 ft50 cfs
South Branch Piscataquog River near Goffstown, NHNo flood stage defined3.01 ft13 cfs
Spicket River at North Salem, NHNo flood stage defined1.88 ft0 cfs
Winnicut River at Greenland, near Portsmouth, NHNo flood stage defined4.21 ft7 cfs
Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.