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 and Breezy

63°F

17°C

Humidity 100%
Wind Speed N 21 G 30 mph
Barometer 29.89 in (1012.0 mb)
Dewpoint 63°F (17°C)
Visibility 3.00 mi
Last update 7 Jul 11:53 pm EDT
Extended Forecast for

Nantucket MA

  • Overnight

    Overnight: Showers likely and possibly a thunderstorm. Patchy fog. Otherwise, cloudy, with a low around 63. North wind around 18 mph. Chance of precipitation is 60%.

    Low: 63 °F

    Showers
    Likely and
    Patchy Fog

  • Wednesday

    Wednesday: A chance of showers, mainly before 7am. Mostly cloudy, with a high near 77. North wind 15 to 17 mph. Chance of precipitation is 30%.

    High: 77 °F

    Chance
    Showers then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 64. Northwest wind 5 to 10 mph becoming southwest in the evening.

    Low: 64 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 82. Southwest wind 11 to 15 mph.

    High: 82 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of showers, mainly after 5am. Mostly cloudy, with a low around 67. Southwest wind 10 to 13 mph. Chance of precipitation is 30%.

    Low: 67 °F

    Partly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Partly sunny, with a high near 76. Southwest wind 9 to 13 mph.

    High: 76 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 67. West wind 7 to 10 mph.

    Low: 67 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 77. North wind 10 to 13 mph.

    High: 77 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 66. East wind around 6 mph becoming light and variable.

    Low: 66 °F

    Mostly Clear

Detailed Forecast

Overnight
Showers likely and possibly a thunderstorm. Patchy fog. Otherwise, cloudy, with a low around 63. North wind around 18 mph. Chance of precipitation is 60%.
Wednesday
A chance of showers, mainly before 7am. Mostly cloudy, with a high near 77. North wind 15 to 17 mph. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 64. Northwest wind 5 to 10 mph becoming southwest in the evening.
Thursday
Mostly sunny, with a high near 82. Southwest wind 11 to 15 mph.
Thursday Night
A chance of showers, mainly after 5am. Mostly cloudy, with a low around 67. Southwest wind 10 to 13 mph. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 76. Southwest wind 9 to 13 mph.
Friday Night
Mostly cloudy, with a low around 67. West wind 7 to 10 mph.
Saturday
Mostly sunny, with a high near 77. North wind 10 to 13 mph.
Saturday Night
Mostly clear, with a low around 66. East wind around 6 mph becoming light and variable.
Sunday
Sunny, with a high near 77. North wind 8 to 10 mph.
Sunday Night
Partly cloudy, with a low around 67. South wind around 6 mph.
Monday
Mostly sunny, with a high near 77. South wind 7 to 14 mph.
Monday Night
Partly cloudy, with a low around 68. Southwest wind around 13 mph.
Tuesday
Mostly sunny, with a high near 79. Southwest wind 13 to 15 mph.
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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:
4:15 pm EDT Jul 7, 2026
Forecast Valid:
12am EDT Jul 8, 2026-6pm EDT Jul 14, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation