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.

Partly Cloudy

78°F

26°C

Humidity 87%
Wind Speed SW 10 mph
Barometer 30.08 in (1018.4 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 15 Jul 4:53 pm EDT
Extended Forecast for

5 Miles W Nantucket MA

  • Tonight

    Tonight: Patchy fog after 9pm. Otherwise, cloudy, with a low around 70. Southwest wind 6 to 9 mph.

    Low: 70 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 81. Southwest wind 6 to 10 mph.

    High: 81 °F

    Patchy Fog
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 73. Southwest wind around 10 mph.

    Low: 73 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: A slight chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and 5pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 80. Southwest wind 13 to 16 mph. Chance of precipitation is 20%.

    High: 80 °F

    Slight Chance
    T-storms and
    Patchy Fog

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 72. Southwest wind 14 to 16 mph. Chance of precipitation is 20%.

    Low: 72 °F

    Slight Chance
    T-storms

  • Friday

    Friday: Sunny, with a high near 81. West wind 11 to 13 mph becoming north in the afternoon.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 67. North wind 7 to 9 mph.

    Low: 67 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 77. Northeast wind around 10 mph becoming east in the afternoon.

    High: 77 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 68. South wind around 6 mph.

    Low: 68 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 9pm. Otherwise, cloudy, with a low around 70. Southwest wind 6 to 9 mph.
Wednesday
Patchy fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 81. Southwest wind 6 to 10 mph.
Wednesday Night
Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 73. Southwest wind around 10 mph.
Thursday
A slight chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and 5pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 80. Southwest wind 13 to 16 mph. Chance of precipitation is 20%.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 72. Southwest wind 14 to 16 mph. Chance of precipitation is 20%.
Friday
Sunny, with a high near 81. West wind 11 to 13 mph becoming north in the afternoon.
Friday Night
Partly cloudy, with a low around 67. North wind 7 to 9 mph.
Saturday
Sunny, with a high near 77. Northeast wind around 10 mph becoming east in the afternoon.
Saturday Night
Partly cloudy, with a low around 68. South wind around 6 mph.
Sunday
A chance of showers after 2pm. Partly sunny, with a high near 78. South wind 8 to 13 mph. Chance of precipitation is 30%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 68. Southwest wind around 11 mph. Chance of precipitation is 40%.
Monday
A chance of showers. Mostly sunny, with a high near 78. North wind around 11 mph. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 66. Northeast wind around 8 mph.
Tuesday
Mostly sunny, with a high near 75. Northeast wind around 10 mph becoming east in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles W Nantucket MA
 41.29°N 70.2°W (Elev. 0 ft)
Last Update:
3:27 pm EDT Jul 15, 2025
Forecast Valid:
5pm EDT Jul 15, 2025-6pm EDT Jul 22, 2025
 
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Additional Resources

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