National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Nantucket, Nantucket Memorial Airport (KACK)

Lat: 41.25°NLon: 70.06°WElev: 46ft.

Fair

68°F

20°C

Humidity 84%
Wind Speed N 8 mph
Barometer 30.11 in (1019.7 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 12 Jul 6:53 am EDT
Extended Forecast for

Nantucket MA

  • Today

    Today: Sunny, with a high near 79. Light northeast wind increasing to 5 to 9 mph in the morning.

    High: 79 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 58. East wind around 5 mph becoming calm in the evening.

    Low: 58 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 79. Light south wind increasing to 8 to 13 mph in the morning.

    High: 79 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 68. Southwest wind 10 to 13 mph.

    Low: 68 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 81. Southwest wind 14 to 18 mph.

    High: 81 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 70. Breezy, with a southwest wind around 21 mph.

    Low: 70 °F

    Mostly Clear
    and Breezy

  • Wednesday

    Wednesday: Sunny, with a high near 81. West wind around 18 mph.

    High: 81 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers between 11pm and 1am. Partly cloudy, with a low around 71. Northwest wind 7 to 15 mph. Chance of precipitation is 30%.

    Low: 71 °F

    Chance
    Showers

  • Thursday

    Thursday: Sunny, with a high near 80. Northwest wind 8 to 10 mph becoming southwest in the afternoon.

    High: 80 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 79. Light northeast wind increasing to 5 to 9 mph in the morning.
Tonight
Mostly clear, with a low around 58. East wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 79. Light south wind increasing to 8 to 13 mph in the morning.
Monday Night
Mostly clear, with a low around 68. Southwest wind 10 to 13 mph.
Tuesday
Sunny, with a high near 81. Southwest wind 14 to 18 mph.
Tuesday Night
Mostly clear, with a low around 70. Breezy, with a southwest wind around 21 mph.
Wednesday
Sunny, with a high near 81. West wind around 18 mph.
Wednesday Night
A chance of showers between 11pm and 1am. Partly cloudy, with a low around 71. Northwest wind 7 to 15 mph. Chance of precipitation is 30%.
Thursday
Sunny, with a high near 80. Northwest wind 8 to 10 mph becoming southwest in the afternoon.
Thursday Night
Partly cloudy, with a low around 70. West wind 9 to 11 mph.
Friday
Mostly sunny, with a high near 79. West wind 9 to 11 mph.
Friday Night
Partly cloudy, with a low around 69. South wind around 10 mph becoming west after midnight.
Saturday
Mostly sunny, with a high near 78. North wind around 10 mph becoming south in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Nantucket MA
 41.28°N 70.12°W (Elev. 49 ft)
Last Update:
2:03 am EDT Jul 12, 2026
Forecast Valid:
6am EDT Jul 12, 2026-6pm EDT Jul 18, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation