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Live readings · updated daily

Water temperature in Massachusetts

The latest readings from USGS real-time water sensors across Massachusetts, warmest first. Snapshot updated August 21, 2026.

Warmest sensor reading right now

78°F26°C

USGS gauge FRESH POND BUOY, NEAR INTAKE AT CAMBRIDGE, MA · as of 9 hrs ago

All reporting stations (warmest 50 of 147)

StationWater tempStreamflowGage heightObserved
FRESH POND BUOY, NEAR INTAKE AT CAMBRIDGE, MAUSGS gauge78°F26°C9 hrs ago
FRESH POND IN GATE HOUSE AT CAMBRIDGE, MAUSGS gauge78°F26°C8 hrs ago
PUMPHOUSE ON ASSAWOMPSET POND NEAR LAKEVILLE, MAUSGS gauge78°F26°C9 hrs ago
SIPPICAN HARBOR NR MARION GOLF CLUB AT MARION, MAUSGS gauge78°F26°C9 hrs ago
HOBBS BK BELOW CAMBRIDGE RES NR KENDALL GREEN, MAUSGS gauge78°F26°C18 ft³/s1.16 ft8 hrs ago
CONNECTICUT RIVER NEAR NORTHFIELD, MAUSGS gauge78°F25°C5,880 ft³/s10.84 ft9 hrs ago
STONY BROOK RESERVOIR AT DAM NEAR WALTHAM, MAUSGS gauge78°F25°C0 ft³/s0.67 ft9 hrs ago
HOBBS BRK AT TRAPELO RD AT LINCOLN, MAUSGS gauge77°F25°C8 hrs ago
MATTAPOISETT HBR NR NEDS POINT NR MATTAPOISETT, MAUSGS gauge77°F25°C9 hrs ago
STONY BROOK AT RT 20 AT WALTHAM, MAUSGS gauge75°F24°C20 ft³/s5.20 ft9 hrs ago
MT. HOPE BAY NEAR KENNEDY PARK AT FALL RIVER, MAUSGS gauge74°F23°C9 hrs ago
STONY BROOK UNNAMED TRIB 2 NR WESTON STATIONUSGS gauge72°F22°C9 hrs ago
WARE RIVER AT INTAKE WORKS NEAR BARRE, MAUSGS gauge71°F21°C29 ft³/s3.34 ft9 hrs ago
QUINAPOXET RIVER AT CANADA MILLS NEAR HOLDEN, MAUSGS gauge70°F21°C7 ft³/s6.41 ft9 hrs ago
STILLWATER RIVER NEAR STERLING, MAUSGS gauge67°F19°C6 ft³/s3.93 ft9 hrs ago
NASHUA RIVER, WATER STREET BRIDGE, AT CLINTON, MAUSGS gauge66°F19°C45 ft³/s1.21 ft9 hrs ago
CAMBRIDGE RES., UNNAMED TRIB 3, NR LEXINGTON, MAUSGS gauge66°F19°C0 ft³/s1.03 ft9 hrs ago
STONY BROOK AT VILES STREET, NEAR WESTON, MAUSGS gauge66°F19°C3 ft³/s0.87 ft9 hrs ago
CAMBRIDGE RES., UNNAMED TRIB 2, NR LEXINGTON, MAUSGS gauge65°F18°C0 ft³/s0.64 ft9 hrs ago
MERRIMACK R ESTUARY US OF SHAD CRK, SALISBURY, MAUSGS gauge63°F17°C9 hrs ago
CAMBRIDGE RES., UNNAMED TRIB 1, NR LEXINGTON, MAUSGS gauge63°F17°C0.37 ft9 hrs ago
DANVERS RIVER AT BEVERLY PIER AT BEVERLY MAUSGS gauge62°F17°C9 hrs ago
STONY BROOK RES., UNNAMED TRIB 1, NEAR WESTON, MAUSGS gauge61°F16°C0 ft³/s0.21 ft9 hrs ago
GATES BROOK NEAR WEST BOYLSTON, MAUSGS gauge61°F16°C3 ft³/s1.34 ft9 hrs ago
STONY BROOK, UNNAMED TRIBUTARY 1, NEAR WALTHAM, MAUSGS gauge60°F15°C0 ft³/s3.09 ft9 hrs ago
ABERJONA RIVER AT WINCHESTER, MAUSGS gauge3 ft³/s6.84 ft9 hrs ago
ALEWIFE BROOK NEAR ARLINGTON, MAUSGS gauge6 ft³/s1.78 ft9 hrs ago
ASSABET RIVER AT MAYNARD, MAUSGS gauge29 ft³/s1.44 ft9 hrs ago
AVERY BROOK NR WHATELY, MAUSGS gauge1 ft³/s3.90 ft9 hrs ago
BEAVER BROOK, LINDEN STREET, AT WALTHAM, MAUSGS gauge2 ft³/s1.95 ft9 hrs ago
BLACKSTONE RIVER AT NORTHBRIDGE, MAUSGS gauge3.14 ft9 hrs ago
BLACKSTONE RIVER, RT 122 BRIDGE NEAR UXBRIDGE, MAUSGS gauge98 ft³/s6.69 ft9 hrs ago
BLACKSTONE RIVER, W. MAIN ST., AT MILLBURY, MAUSGS gauge43 ft³/s1.57 ft9 hrs ago
CHARLES R DS OF NEW CHARLES R DAM AT BOSTON, MAUSGS gauge109.38 ft8 hrs ago
CHARLES RIVER AT DOVER, MAUSGS gauge32 ft³/s0.65 ft8 hrs ago
CHARLES RIVER AT FIRST ST AT CAMBRIDGE, MAUSGS gauge107.43 ft8 hrs ago
CHARLES RIVER AT MEDWAY, MAUSGS gauge14 ft³/s0.79 ft8 hrs ago
CHARLES RIVER AT WALTHAM, MAUSGS gauge31 ft³/s0.75 ft9 hrs ago
CHARLES RIVER AT WELLESLEY, MAUSGS gauge21 ft³/s2.72 ft9 hrs ago
CHARLES RIVER, NEW CHARLES RIVER DAM AT BOSTON, MAUSGS gauge107.40 ft8 hrs ago
CHICOPEE RIVER AT INDIAN ORCHARD, MAUSGS gauge397 ft³/s4.48 ft9 hrs ago
COCHITUATE BK BL LAKE COCHITUATE AT FRAMINGHAM, MAUSGS gauge1 ft³/s0.80 ft9 hrs ago
COLD RIVER AT FLORIDA, MAUSGS gauge3 ft³/s3.48 ft9 hrs ago
CONCORD R BELOW R MEADOW BROOK, AT LOWELL, MAUSGS gauge56 ft³/s3.77 ft9 hrs ago
CONNECTICUT R AT I-391 BRIDGE AT HOLYOKE, MAUSGS gauge5,530 ft³/s5.72 ft9 hrs ago
CONNECTICUT RIVER AT MONTAGUE CITY, MAUSGS gauge2,050 ft³/s6.43 ft9 hrs ago
DEERFIELD RIVER AT CHARLEMONT, MAUSGS gauge199 ft³/s1.96 ft9 hrs ago
DEERFIELD RIVER NEAR WEST DEERFIELD, MAUSGS gauge310 ft³/s2.14 ft9 hrs ago
EAST BRANCH HOUSATONIC RIVER AT COLTSVILLE, MAUSGS gauge24 ft³/s0.60 ft9 hrs ago
EAST BRANCH NEPONSET RIVER AT CANTON, MAUSGS gauge3 ft³/s0.33 ft9 hrs ago

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

About these readings

Readings come from USGS real-time monitoring stations — 25 sensors are currently reporting a water temperature in Massachusetts. 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.