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 71%
Wind Speed N 3 mph
Barometer 30.05 in (1017.5 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 22 Jun 6:53 am EDT
Extended Forecast for

Nantucket MA

  • Today

    Today: Increasing clouds, with a high near 78. Light and variable wind becoming south 5 to 10 mph in the morning.

    High: 78 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Showers likely, mainly after 5am. Patchy fog after 9pm. Otherwise, cloudy, with a low around 65. South wind 10 to 14 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 65 °F

    Showers
    Likely and
    Patchy Fog

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm, mainly before 4pm, then a chance of showers and thunderstorms after 4pm. Some of the storms could produce heavy rainfall. Patchy fog before 9am. High near 79. South wind 10 to 14 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    High: 79 °F

    Heavy Rain
    and Patchy
    Fog

  • Tuesday Night

    Tuesday Night: A chance of showers, mainly before 10pm. Mostly cloudy, with a low around 64. Northwest wind 5 to 7 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 64 °F

    Chance
    Showers then
    Mostly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 81. Southwest wind around 10 mph.

    High: 81 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 66. West wind 7 to 10 mph.

    Low: 66 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 80. Southwest wind 5 to 10 mph.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 66. South wind around 8 mph.

    Low: 66 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers after 8am. Partly sunny, with a high near 77. South wind 9 to 14 mph. Chance of precipitation is 30%.

    High: 77 °F

    Chance
    Showers

Detailed Forecast

Today
Increasing clouds, with a high near 78. Light and variable wind becoming south 5 to 10 mph in the morning.
Tonight
Showers likely, mainly after 5am. Patchy fog after 9pm. Otherwise, cloudy, with a low around 65. South wind 10 to 14 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
Showers and possibly a thunderstorm, mainly before 4pm, then a chance of showers and thunderstorms after 4pm. Some of the storms could produce heavy rainfall. Patchy fog before 9am. High near 79. South wind 10 to 14 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Tuesday Night
A chance of showers, mainly before 10pm. Mostly cloudy, with a low around 64. Northwest wind 5 to 7 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Sunny, with a high near 81. Southwest wind around 10 mph.
Wednesday Night
Mostly clear, with a low around 66. West wind 7 to 10 mph.
Thursday
Sunny, with a high near 80. Southwest wind 5 to 10 mph.
Thursday Night
Partly cloudy, with a low around 66. South wind around 8 mph.
Friday
A chance of showers after 8am. Partly sunny, with a high near 77. South wind 9 to 14 mph. Chance of precipitation is 30%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 67. Southwest wind 8 to 13 mph. Chance of precipitation is 40%.
Saturday
A chance of showers. Partly sunny, with a high near 79. Southwest wind 7 to 10 mph. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 67. Southwest wind 6 to 9 mph.
Sunday
Sunny, with a high near 80. West wind around 8 mph becoming southwest in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Nantucket MA
 41.28°N 70.12°W (Elev. 49 ft)
Last Update:
5:35 am EDT Jun 22, 2026
Forecast Valid:
6am EDT Jun 22, 2026-6pm EDT Jun 28, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation