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

70°F

21°C

Humidity 79%
Wind Speed S 6 mph
Barometer 30.16 in (1021.3 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 16 Aug 8:53 am EDT
Extended Forecast for

3 Miles W Nantucket MA

  • Today

    Today: Sunny, with a high near 76. East wind 6 to 11 mph becoming south in the afternoon.

    High: 76 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 63. South wind 9 to 11 mph.

    Low: 63 °F

    Increasing
    Clouds

  • Monday

    Monday: Showers likely, with thunderstorms also possible after 1pm. Patchy fog before 4pm, then patchy fog after 5pm. Otherwise, cloudy, with a high near 76. Breezy, with a southeast wind 16 to 20 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 76 °F

    Showers
    Likely and
    Patchy Fog

  • Monday Night

    Monday Night: A chance of showers, mainly before 1am. Patchy fog before 9pm. Otherwise, mostly cloudy, with a low around 70. Southwest wind 7 to 10 mph becoming north in the evening. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 70 °F

    Chance
    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: Partly sunny, with a high near 75. North wind 11 to 13 mph.

    High: 75 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 69. North wind around 5 mph becoming light and variable.

    Low: 69 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 77. Southwest wind 5 to 11 mph.

    High: 77 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 71. Southwest wind 9 to 11 mph.

    Low: 71 °F

    Mostly Clear

  • Thursday

    Thursday: A chance of showers after 10am. Partly sunny, with a high near 78. Southwest wind 9 to 11 mph becoming northeast in the afternoon. Chance of precipitation is 40%.

    High: 78 °F

    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 76. East wind 6 to 11 mph becoming south in the afternoon.
Tonight
Increasing clouds, with a low around 63. South wind 9 to 11 mph.
Monday
Showers likely, with thunderstorms also possible after 1pm. Patchy fog before 4pm, then patchy fog after 5pm. Otherwise, cloudy, with a high near 76. Breezy, with a southeast wind 16 to 20 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
A chance of showers, mainly before 1am. Patchy fog before 9pm. Otherwise, mostly cloudy, with a low around 70. Southwest wind 7 to 10 mph becoming north in the evening. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Partly sunny, with a high near 75. North wind 11 to 13 mph.
Tuesday Night
Partly cloudy, with a low around 69. North wind around 5 mph becoming light and variable.
Wednesday
Sunny, with a high near 77. Southwest wind 5 to 11 mph.
Wednesday Night
Mostly clear, with a low around 71. Southwest wind 9 to 11 mph.
Thursday
A chance of showers after 10am. Partly sunny, with a high near 78. Southwest wind 9 to 11 mph becoming northeast in the afternoon. Chance of precipitation is 40%.
Thursday Night
A chance of showers before 2am. Mostly cloudy, with a low around 68. West wind 7 to 9 mph becoming north after midnight. Chance of precipitation is 40%.
Friday
Mostly sunny, with a high near 75. Northeast wind 11 to 13 mph.
Friday Night
Partly cloudy, with a low around 67. East wind 6 to 8 mph.
Saturday
A chance of showers. Partly sunny, with a high near 76. East wind 10 to 13 mph. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Nantucket MA
 41.28°N 70.14°W (Elev. 49 ft)
Last Update:
6:19 am EDT Aug 16, 2026
Forecast Valid:
9am EDT Aug 16, 2026-6pm EDT Aug 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation