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.

A Few Clouds

65°F

18°C

Humidity 93%
Wind Speed SW 13 mph
Barometer 29.95 in (1014.0 mb)
Dewpoint 63°F (17°C)
Visibility 9.00 mi
Last update 2 Oct 5:53 am EDT
Extended Forecast for

Nantucket MA

  • Today

    Today: Mostly sunny, with a high near 69. Southwest wind 13 to 16 mph.

    High: 69 °F

    Mostly Sunny

  • Tonight

    Tonight: Showers likely, mainly between midnight and 5am. Patchy fog between 11pm and 3am. Otherwise, mostly cloudy, with a low around 58. Southwest wind 7 to 13 mph becoming north after midnight. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 58 °F

    Showers
    Likely and
    Patchy Fog

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 63. Northeast wind 11 to 13 mph.

    High: 63 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 56. Northeast wind 7 to 9 mph.

    Low: 56 °F

    Mostly Clear

  • Sunday

    Sunday: A slight chance of showers after 3pm. Partly sunny, with a high near 63. East wind 11 to 13 mph. Chance of precipitation is 20%.

    High: 63 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers. Mostly cloudy, with a low around 57. East wind 3 to 8 mph. Chance of precipitation is 50%.

    Low: 57 °F

    Chance
    Showers

  • Monday

    Monday: Partly sunny, with a high near 65. West wind 5 to 11 mph.

    High: 65 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 50. Northwest wind 15 to 18 mph.

    Low: 50 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 60. Northwest wind 13 to 16 mph.

    High: 60 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 69. Southwest wind 13 to 16 mph.
Tonight
Showers likely, mainly between midnight and 5am. Patchy fog between 11pm and 3am. Otherwise, mostly cloudy, with a low around 58. Southwest wind 7 to 13 mph becoming north after midnight. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 63. Northeast wind 11 to 13 mph.
Saturday Night
Mostly clear, with a low around 56. Northeast wind 7 to 9 mph.
Sunday
A slight chance of showers after 3pm. Partly sunny, with a high near 63. East wind 11 to 13 mph. Chance of precipitation is 20%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 57. East wind 3 to 8 mph. Chance of precipitation is 50%.
Monday
Partly sunny, with a high near 65. West wind 5 to 11 mph.
Monday Night
Mostly clear, with a low around 50. Northwest wind 15 to 18 mph.
Tuesday
Sunny, with a high near 60. Northwest wind 13 to 16 mph.
Tuesday Night
Mostly clear, with a low around 51. Northwest wind 8 to 10 mph.
Wednesday
Sunny, with a high near 60. Northwest wind 6 to 8 mph becoming southwest in the afternoon.
Wednesday Night
Mostly clear, with a low around 55. Southwest wind around 7 mph.
Thursday
Sunny, with a high near 63. Southwest wind 7 to 10 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Nantucket MA
 41.28°N 70.12°W (Elev. 49 ft)
Last Update:
2:55 am EDT Oct 2, 2026
Forecast Valid:
6am EDT Oct 2, 2026-6pm EDT Oct 8, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation