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

59°F

15°C

Humidity 93%
Wind Speed Calm
Barometer 30.06 in (1018.0 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 12 Jul 1:53 am EDT
Extended Forecast for

Nantucket MA

  • Overnight

    Overnight: Clear, with a low around 61. Calm wind.

    Low: 61 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 79. Northeast wind 5 to 8 mph.

    High: 79 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 59. Light and variable wind.

    Low: 59 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 80. Light south wind increasing to 8 to 13 mph in the morning.

    High: 80 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 67. Southwest wind around 11 mph.

    Low: 67 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 82. Southwest wind 14 to 17 mph.

    High: 82 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 70. Breezy, with a southwest wind around 20 mph.

    Low: 70 °F

    Mostly Clear
    and Breezy

  • Wednesday

    Wednesday: Sunny, with a high near 82. Breezy, with a west wind 18 to 20 mph.

    High: 82 °F

    Sunny then
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: A chance of showers between 11pm and 2am. Partly cloudy, with a low around 70. Northwest wind 7 to 15 mph. Chance of precipitation is 30%.

    Low: 70 °F

    Chance
    Showers

Detailed Forecast

Overnight
Clear, with a low around 61. Calm wind.
Sunday
Sunny, with a high near 79. Northeast wind 5 to 8 mph.
Sunday Night
Mostly clear, with a low around 59. Light and variable wind.
Monday
Sunny, with a high near 80. Light south wind increasing to 8 to 13 mph in the morning.
Monday Night
Mostly clear, with a low around 67. Southwest wind around 11 mph.
Tuesday
Sunny, with a high near 82. Southwest wind 14 to 17 mph.
Tuesday Night
Mostly clear, with a low around 70. Breezy, with a southwest wind around 20 mph.
Wednesday
Sunny, with a high near 82. Breezy, with a west wind 18 to 20 mph.
Wednesday Night
A chance of showers between 11pm and 2am. Partly cloudy, with a low around 70. Northwest wind 7 to 15 mph. Chance of precipitation is 30%.
Thursday
Sunny, with a high near 81. Northwest wind 8 to 10 mph becoming southwest in the afternoon.
Thursday Night
Partly cloudy, with a low around 69. Southwest wind around 10 mph.
Friday
Mostly sunny, with a high near 80. West wind 9 to 11 mph.
Friday Night
Partly cloudy, with a low around 69. Southwest wind around 10 mph.
Saturday
Mostly sunny, with a high near 79. North wind 9 to 11 mph becoming south in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Nantucket MA
 41.28°N 70.09°W (Elev. 3 ft)
Last Update:
2:03 am EDT Jul 12, 2026
Forecast Valid:
2am 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