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 N 13 mph
Barometer 29.99 in (1015.4 mb)
Dewpoint 67°F (19°C)
Visibility 7.00 mi
Last update 22 Aug 5:53 am EDT
Extended Forecast for

Nantucket MA

  • Today

    Today: A slight chance of showers after 3pm.  Patchy fog before 4pm, then patchy fog after 5pm.  Otherwise, mostly cloudy, with a high near 73. Northeast wind 7 to 14 mph.  Chance of precipitation is 20%.

    High: 73 °F

    Patchy Fog
    then Slight
    Chance
    Showers and
    Patchy Fog

  • Tonight

    Tonight: Showers likely, with thunderstorms also possible after 2am.  Patchy fog.  Otherwise, mostly cloudy, with a low around 64. Light and variable wind becoming southeast around 5 mph after midnight.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 64 °F

    Showers
    Likely and
    Patchy Fog

  • Sunday

    Sunday: A chance of showers and thunderstorms before 1pm, then a slight chance of showers between 1pm and 2pm.  Patchy fog before 11am.  Otherwise, partly sunny, with a high near 77. South wind 7 to 11 mph.  Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Chance
    Showers and
    Patchy Fog

  • Sunday Night

    Sunday Night: A chance of showers, mainly between 11pm and 2am.  Mostly cloudy, with a low around 67. Southwest wind around 8 mph.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 67 °F

    Chance
    Showers

  • Monday

    Monday: Sunny, with a high near 77. Southwest wind 7 to 13 mph.

    High: 77 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 65. West wind around 9 mph.

    Low: 65 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 76. Southwest wind 9 to 15 mph.

    High: 76 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 65. Southwest wind 9 to 14 mph.

    Low: 65 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 76. Southwest wind 7 to 13 mph.

    High: 76 °F

    Sunny

Detailed Forecast

Today
A slight chance of showers after 3pm. Patchy fog before 4pm, then patchy fog after 5pm. Otherwise, mostly cloudy, with a high near 73. Northeast wind 7 to 14 mph. Chance of precipitation is 20%.
Tonight
Showers likely, with thunderstorms also possible after 2am. Patchy fog. Otherwise, mostly cloudy, with a low around 64. Light and variable wind becoming southeast around 5 mph after midnight. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
A chance of showers and thunderstorms before 1pm, then a slight chance of showers between 1pm and 2pm. Patchy fog before 11am. Otherwise, partly sunny, with a high near 77. South wind 7 to 11 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers, mainly between 11pm and 2am. Mostly cloudy, with a low around 67. Southwest wind around 8 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Sunny, with a high near 77. Southwest wind 7 to 13 mph.
Monday Night
Mostly clear, with a low around 65. West wind around 9 mph.
Tuesday
Sunny, with a high near 76. Southwest wind 9 to 15 mph.
Tuesday Night
Mostly clear, with a low around 65. Southwest wind 9 to 14 mph.
Wednesday
Sunny, with a high near 76. Southwest wind 7 to 13 mph.
Wednesday Night
Partly cloudy, with a low around 67. Southwest wind 7 to 10 mph.
Thursday
Mostly sunny, with a high near 77. South wind 6 to 10 mph.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 67. South wind 6 to 8 mph. Chance of precipitation is 40%.
Friday
A chance of showers. Partly sunny, with a high near 77. South wind 9 to 11 mph. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Nantucket MA
 41.28°N 70.09°W (Elev. 3 ft)
4:54 am EDT Aug 22, 2026
6am EDT Aug 22, 2026-6pm EDT Aug 28, 2026
 
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Additional Resources

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