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

79°F

26°C

Humidity 77%
Wind Speed SW 12 mph
Barometer 30.01 in (1016.1 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 29 Jul 10:53 am EDT
Extended Forecast for

Nantucket Memorial Airport MA

  • Today

    Today: Sunny, with a high near 81. Southwest wind 10 to 13 mph.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Patchy fog. Otherwise, partly cloudy, with a low around 66. Southwest wind 8 to 10 mph.

    Low: 66 °F

    Patchy Fog

  • Wednesday

    Wednesday: Sunny, with a high near 80. East wind 7 to 11 mph becoming southwest in the morning.

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers, then a chance of showers and thunderstorms after 11pm. Patchy fog before 9pm. Otherwise, mostly cloudy, with a low around 66. Southwest wind 8 to 10 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Chance
    T-storms and
    Patchy Fog

  • Thursday

    Thursday: A chance of showers and thunderstorms. Partly sunny, with a high near 77. Northeast wind 10 to 13 mph. Chance of precipitation is 40%.

    High: 77 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers. Cloudy, with a low around 62. East wind 9 to 11 mph. Chance of precipitation is 50%.

    Low: 62 °F

    Chance
    Showers

  • Friday

    Friday: Showers likely. Mostly cloudy, with a high near 73. Northeast wind 15 to 17 mph. Chance of precipitation is 60%.

    High: 73 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers before 11pm. Mostly cloudy, with a low around 61. Northeast wind around 15 mph. Chance of precipitation is 40%.

    Low: 61 °F

    Chance
    Showers then
    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 73. North wind 14 to 16 mph.

    High: 73 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 81. Southwest wind 10 to 13 mph.
Tonight
Patchy fog. Otherwise, partly cloudy, with a low around 66. Southwest wind 8 to 10 mph.
Wednesday
Sunny, with a high near 80. East wind 7 to 11 mph becoming southwest in the morning.
Wednesday Night
A slight chance of showers, then a chance of showers and thunderstorms after 11pm. Patchy fog before 9pm. Otherwise, mostly cloudy, with a low around 66. Southwest wind 8 to 10 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 77. Northeast wind 10 to 13 mph. Chance of precipitation is 40%.
Thursday Night
A chance of showers. Cloudy, with a low around 62. East wind 9 to 11 mph. Chance of precipitation is 50%.
Friday
Showers likely. Mostly cloudy, with a high near 73. Northeast wind 15 to 17 mph. Chance of precipitation is 60%.
Friday Night
A chance of showers before 11pm. Mostly cloudy, with a low around 61. Northeast wind around 15 mph. Chance of precipitation is 40%.
Saturday
Sunny, with a high near 73. North wind 14 to 16 mph.
Saturday Night
Mostly clear, with a low around 61. Northeast wind around 6 mph becoming northwest after midnight.
Sunday
Sunny, with a high near 75. Northwest wind 7 to 9 mph becoming southwest in the afternoon.
Sunday Night
Mostly clear, with a low around 62. Southwest wind around 8 mph.
Monday
Sunny, with a high near 76. South wind 9 to 11 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Nantucket Memorial Airport MA
 41.25°N 70.06°W (Elev. 0 ft)
Last Update:
1:35 am EDT Jul 29, 2025
Forecast Valid:
11am EDT Jul 29, 2025-6pm EDT Aug 4, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation