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.

Mostly Cloudy

64°F

18°C

Humidity 90%
Wind Speed SW 12 mph
Barometer 29.78 in (1008.3 mb)
Dewpoint 61°F (16°C)
Visibility 8.00 mi
Last update 14 Oct 4:53 pm EDT
Extended Forecast for

Nantucket MA

  • Tonight

    Tonight: Mostly clear, with a low around 53. Northwest wind 10 to 14 mph, with gusts as high as 25 mph.

    Low: 53 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 57. North wind 11 to 16 mph, with gusts as high as 29 mph.

    High: 57 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 51. Light and variable wind becoming southeast 5 to 7 mph after midnight.

    Low: 51 °F

    Partly Cloudy

  • Friday

    Friday: Showers, mainly after 7am. High near 69. Southeast wind 14 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 69 °F

    Showers

  • Friday Night

    Friday Night: Showers likely. Mostly cloudy, with a low around 51. Breezy, with a southwest wind 18 to 21 mph becoming northwest after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 70%.

    Low: 51 °F

    Showers
    Likely and
    Breezy

  • Saturday

    Saturday: A chance of showers, mainly before 1pm. Partly sunny, with a high near 55. Breezy, with a northwest wind 21 to 23 mph, with gusts as high as 33 mph. Chance of precipitation is 50%.

    High: 55 °F

    Chance
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 45. Breezy, with a north wind 17 to 22 mph.

    Low: 45 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 55. Northwest wind 13 to 16 mph.

    High: 55 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 49. West wind 6 to 8 mph.

    Low: 49 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 53. Northwest wind 10 to 14 mph, with gusts as high as 25 mph.
Thursday
Sunny, with a high near 57. North wind 11 to 16 mph, with gusts as high as 29 mph.
Thursday Night
Partly cloudy, with a low around 51. Light and variable wind becoming southeast 5 to 7 mph after midnight.
Friday
Showers, mainly after 7am. High near 69. Southeast wind 14 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Showers likely. Mostly cloudy, with a low around 51. Breezy, with a southwest wind 18 to 21 mph becoming northwest after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 70%.
Saturday
A chance of showers, mainly before 1pm. Partly sunny, with a high near 55. Breezy, with a northwest wind 21 to 23 mph, with gusts as high as 33 mph. Chance of precipitation is 50%.
Saturday Night
Partly cloudy, with a low around 45. Breezy, with a north wind 17 to 22 mph.
Sunday
Sunny, with a high near 55. Northwest wind 13 to 16 mph.
Sunday Night
Mostly clear, with a low around 49. West wind 6 to 8 mph.
Monday
Sunny, with a high near 59. South wind 10 to 14 mph.
Monday Night
Partly cloudy, with a low around 54. Southwest wind 9 to 11 mph.
Tuesday
Mostly sunny, with a high near 61. West wind 9 to 11 mph.
Tuesday Night
Partly cloudy, with a low around 54. North wind 6 to 8 mph.
Wednesday
Sunny, with a high near 59. Northeast wind 10 to 13 mph.
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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:
3:18 pm EDT Oct 14, 2026
Forecast Valid:
5pm EDT Oct 14, 2026-6pm EDT Oct 21, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation