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.

Fog/Mist

69°F

21°C

Humidity 96%
Wind Speed SW 8 mph
Barometer 30.07 in (1018.1 mb)
Dewpoint 68°F (20°C)
Visibility 2.50 mi
Last update 16 Jul 2:53 am EDT
Extended Forecast for

5 Miles W Nantucket MA

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly cloudy, with a low around 71. Southwest wind around 7 mph.

    Low: 71 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy dense fog before 1pm, then patchy dense fog after 2pm. Otherwise, partly sunny, with a high near 76. Southwest wind 7 to 10 mph.

    High: 76 °F

    Patchy Dense
    Fog

  • Wednesday Night

    Wednesday Night: Patchy fog. Otherwise, increasing clouds, with a low around 72. Southwest wind around 11 mph.

    Low: 72 °F

    Patchy Fog

  • Thursday

    Thursday: Showers and possibly a thunderstorm before 9am, then a slight chance of showers after 3pm. Patchy fog before 9am. High near 77. Southwest wind 14 to 17 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Showers and
    Patchy Fog
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: A slight chance of showers before 1am. Partly cloudy, with a low around 72. Southwest wind 16 to 18 mph. Chance of precipitation is 20%.

    Low: 72 °F

    Slight Chance
    Showers

  • Friday

    Friday: Sunny, with a high near 77. West wind around 14 mph.

    High: 77 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 68. North wind 8 to 10 mph.

    Low: 68 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 73. Northeast wind 8 to 10 mph becoming southeast in the afternoon.

    High: 73 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 68. South wind around 9 mph.

    Low: 68 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 71. Southwest wind around 7 mph.
Wednesday
Patchy dense fog before 1pm, then patchy dense fog after 2pm. Otherwise, partly sunny, with a high near 76. Southwest wind 7 to 10 mph.
Wednesday Night
Patchy fog. Otherwise, increasing clouds, with a low around 72. Southwest wind around 11 mph.
Thursday
Showers and possibly a thunderstorm before 9am, then a slight chance of showers after 3pm. Patchy fog before 9am. High near 77. Southwest wind 14 to 17 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A slight chance of showers before 1am. Partly cloudy, with a low around 72. Southwest wind 16 to 18 mph. Chance of precipitation is 20%.
Friday
Sunny, with a high near 77. West wind around 14 mph.
Friday Night
Partly cloudy, with a low around 68. North wind 8 to 10 mph.
Saturday
Mostly sunny, with a high near 73. Northeast wind 8 to 10 mph becoming southeast in the afternoon.
Saturday Night
Partly cloudy, with a low around 68. South wind around 9 mph.
Sunday
A chance of showers after 9am. Partly sunny, with a high near 74. South wind 10 to 13 mph. Chance of precipitation is 40%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 68. South wind around 10 mph becoming west after midnight. Chance of precipitation is 40%.
Monday
Mostly sunny, with a high near 74. Northeast wind around 11 mph.
Monday Night
Partly cloudy, with a low around 68. East wind around 9 mph.
Tuesday
Mostly sunny, with a high near 73. East wind around 11 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles W Nantucket MA
 41.27°N 70.21°W (Elev. 0 ft)
Last Update:
1:31 am EDT Jul 16, 2025
Forecast Valid:
3am EDT Jul 16, 2025-6pm EDT Jul 22, 2025
 
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Additional Resources

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High Temperature

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Chance of Precipitation