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

65°F

18°C

Humidity 93%
Wind Speed NA
Barometer 30.03 in (1016.8 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 26 Aug 6:53 am EDT
Extended Forecast for

Nantucket MA

  • Today

    Today: Sunny, with a high near 75. Southwest wind 5 to 7 mph.

    High: 75 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 66. Southwest wind around 5 mph.

    Low: 66 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly sunny, with a high near 78. South wind 5 to 10 mph.

    High: 78 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Increasing clouds, with a low around 68. South wind around 9 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Friday

    Friday: A chance of showers, mainly before 9am. Partly sunny, with a high near 78. South wind 7 to 9 mph. Chance of precipitation is 30%.

    High: 78 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of showers after 3am. Mostly cloudy, with a low around 65. Southwest wind around 6 mph becoming northwest after midnight. Chance of precipitation is 20%.

    Low: 65 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 73. North wind 9 to 11 mph.

    High: 73 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 64. East wind around 5 mph becoming calm in the evening.

    Low: 64 °F

    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 75. Light southwest wind increasing to 5 to 10 mph in the morning.

    High: 75 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 75. Southwest wind 5 to 7 mph.
Tonight
Increasing clouds, with a low around 66. Southwest wind around 5 mph.
Thursday
Mostly sunny, with a high near 78. South wind 5 to 10 mph.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Increasing clouds, with a low around 68. South wind around 9 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers, mainly before 9am. Partly sunny, with a high near 78. South wind 7 to 9 mph. Chance of precipitation is 30%.
Friday Night
A slight chance of showers after 3am. Mostly cloudy, with a low around 65. Southwest wind around 6 mph becoming northwest after midnight. Chance of precipitation is 20%.
Saturday
Partly sunny, with a high near 73. North wind 9 to 11 mph.
Saturday Night
Mostly cloudy, with a low around 64. East wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 75. Light southwest wind increasing to 5 to 10 mph in the morning.
Sunday Night
Partly cloudy, with a low around 67. Southwest wind around 9 mph.
Monday
Mostly sunny, with a high near 77. West wind 13 to 15 mph.
Monday Night
Partly cloudy, with a low around 68. Southwest wind 8 to 11 mph.
Tuesday
Mostly sunny, with a high near 77. South wind 9 to 13 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Nantucket MA
 41.28°N 70.09°W (Elev. 3 ft)
Last Update:
2:54 am EDT Aug 26, 2026
Forecast Valid:
7am EDT Aug 26, 2026-6pm EDT Sep 1, 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