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.

Overcast

68°F

20°C

Humidity 96%
Wind Speed W 12 mph
Barometer 30.01 in (1016.3 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 18 Sep 6:53 am EDT
Extended Forecast for

3 Miles SSW Nantucket MA

  • Today

    Today: A chance of showers before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 71. West wind 10 to 13 mph becoming north in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 71 °F

    Chance
    Showers then
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 60. Breezy, with a north wind 5 to 10 mph increasing to 16 to 21 mph after midnight.

    Low: 60 °F

    Mostly Clear
    then Partly
    Cloudy and
    Breezy

  • Saturday

    Saturday: Mostly sunny, with a high near 62. Northeast wind 13 to 17 mph.

    High: 62 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 57. East wind around 8 mph.

    Low: 57 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 67. Southeast wind 10 to 13 mph. Chance of precipitation is 30%.

    High: 67 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Showers likely, then showers and possibly a thunderstorm after 2am. Patchy fog after 1am. Low around 60. East wind around 9 mph. Chance of precipitation is 80%.

    Low: 60 °F

    Showers and
    Patchy Fog

  • Monday

    Monday: Showers likely, mainly before 8am. The rain could be heavy at times. Mostly cloudy, with a high near 66. Breezy, with a northeast wind 15 to 20 mph. Chance of precipitation is 60%.

    High: 66 °F

    Heavy Rain
    and Breezy

  • Monday Night

    Monday Night: A chance of showers. Mostly cloudy, with a low around 58. Breezy, with a northeast wind 18 to 21 mph. Chance of precipitation is 40%.

    Low: 58 °F

    Chance
    Showers and
    Breezy

  • Tuesday

    Tuesday: A chance of showers. Mostly cloudy, with a high near 64. Breezy, with a northeast wind 22 to 24 mph. Chance of precipitation is 40%.

    High: 64 °F

    Chance
    Showers and
    Breezy

Detailed Forecast

Today
A chance of showers before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 71. West wind 10 to 13 mph becoming north in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Mostly clear, with a low around 60. Breezy, with a north wind 5 to 10 mph increasing to 16 to 21 mph after midnight.
Saturday
Mostly sunny, with a high near 62. Northeast wind 13 to 17 mph.
Saturday Night
Partly cloudy, with a low around 57. East wind around 8 mph.
Sunday
A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 67. Southeast wind 10 to 13 mph. Chance of precipitation is 30%.
Sunday Night
Showers likely, then showers and possibly a thunderstorm after 2am. Patchy fog after 1am. Low around 60. East wind around 9 mph. Chance of precipitation is 80%.
Monday
Showers likely, mainly before 8am. The rain could be heavy at times. Mostly cloudy, with a high near 66. Breezy, with a northeast wind 15 to 20 mph. Chance of precipitation is 60%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 58. Breezy, with a northeast wind 18 to 21 mph. Chance of precipitation is 40%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 64. Breezy, with a northeast wind 22 to 24 mph. Chance of precipitation is 40%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 57. Breezy, with a northeast wind around 25 mph. Chance of precipitation is 30%.
Wednesday
Partly sunny, with a high near 64. Windy, with a northeast wind 24 to 28 mph, with gusts as high as 38 mph.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 57. Windy, with a northeast wind around 29 mph. Chance of precipitation is 30%.
Thursday
A chance of showers. Partly sunny, with a high near 65. Windy, with a northeast wind 23 to 28 mph. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Nantucket MA
 41.24°N 70.13°W (Elev. 0 ft)
Last Update:
7:02 am EDT Sep 18, 2026
Forecast Valid:
7am EDT Sep 18, 2026-6pm EDT Sep 24, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation