Current conditions at

Nantucket, Nantucket Memorial Airport (KACK)

Lat: 41.25°NLon: 70.06°WElev: 46ft.

Fog/Mist

72°F

22°C

Humidity 94%
Wind Speed S 20 G 28 mph
Barometer 29.82 in (1009.8 mb)
Dewpoint 70°F (21°C)
Visibility 6.00 mi
Last update 3 Aug 4:53 pm EDT
Extended Forecast for

Nantucket Memorial Airport MA

High Surf Advisory August 3, 05:37pm until August 3, 09:00pm
Click here for hazard details and duration
High Surf Advisory
  •  
    High Surf Advisory August 3, 05:37pm until August 3, 09:00pm

    NOW until 9:00pm Mon

    High Surf Advisory

  • This Afternoon

    High: 79 °F

    Showers
    Likely and
    Breezy

  • Tonight

    Tonight: Showers and thunderstorms likely before 2am, then a slight chance of showers between 2am and 3am.  Patchy fog between 7pm and 1am.  Otherwise, mostly cloudy, with a low around 67. Southwest wind 9 to 17 mph becoming northwest after midnight. Winds could gust as high as 32 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Showers
    Likely and
    Patchy Fog

  • Tuesday

    Tuesday: Increasing clouds, with a high near 77. Northwest wind 6 to 9 mph becoming southwest in the afternoon.

    High: 77 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 67. Southwest wind 3 to 6 mph.

    Low: 67 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers before 2pm.  Patchy fog before 9am.  Otherwise, partly sunny, with a high near 78. Calm wind becoming southwest 5 to 9 mph in the morning.  Chance of precipitation is 20%.

    High: 78 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 69. Southwest wind around 7 mph.

    Low: 69 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 79. Southwest wind 8 to 13 mph.

    High: 79 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 69. Southwest wind around 11 mph.

    Low: 69 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm. Cloudy, with a high near 79. Breezy, with a south wind around 20 mph, with gusts as high as 36 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely before 2am, then a slight chance of showers between 2am and 3am. Patchy fog between 7pm and 1am. Otherwise, mostly cloudy, with a low around 67. Southwest wind 9 to 17 mph becoming northwest after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
Increasing clouds, with a high near 77. Northwest wind 6 to 9 mph becoming southwest in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 67. Southwest wind 3 to 6 mph.
Wednesday
A slight chance of showers before 2pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 78. Calm wind becoming southwest 5 to 9 mph in the morning. Chance of precipitation is 20%.
Wednesday Night
Mostly cloudy, with a low around 69. Southwest wind around 7 mph.
Thursday
Mostly sunny, with a high near 79. Southwest wind 8 to 13 mph.
Thursday Night
Partly cloudy, with a low around 69. Southwest wind around 11 mph.
Friday
Mostly sunny, with a high near 79. Southwest wind 11 to 15 mph.
Friday Night
Partly cloudy, with a low around 69. Southwest wind 11 to 14 mph.
Saturday
Mostly sunny, with a high near 79. West wind 10 to 14 mph.
Saturday Night
Partly cloudy, with a low around 69. Southwest wind 9 to 11 mph.
Sunday
Mostly sunny, with a high near 79. Southwest wind 8 to 14 mph.
Sunday Night
Partly cloudy, with a low around 68. Southwest wind 10 to 13 mph.
Monday
Mostly sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
Nantucket Memorial Airport MA
 41.25°N 70.09°W (Elev. 23 ft)
3:42 pm EDT Aug 3, 2026
5pm EDT Aug 3, 2026-6pm EDT Aug 10, 2026
 
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Additional Resources

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