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 55%
Wind Speed SW 10 mph
Barometer 30.15 in (1020.9 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 28 Aug 1:53 pm EDT
Extended Forecast for

Nantucket MA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 74. Southwest wind around 11 mph.

    High: 74 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 63. South wind around 10 mph, with gusts as high as 22 mph.

    Low: 63 °F

    Decreasing
    Clouds

  • Friday

    Friday: A slight chance of showers before 7am, then a slight chance of showers after 2pm. Mostly sunny, with a high near 75. South wind 9 to 13 mph. Chance of precipitation is 20%.

    High: 75 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 57. South wind around 8 mph becoming northwest after midnight. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers before 10am. Sunny, with a high near 74. West wind around 10 mph. Chance of precipitation is 20%.

    High: 74 °F

    Slight Chance
    Showers then
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 60. West wind around 6 mph.

    Low: 60 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 73. North wind around 8 mph.

    High: 73 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 60. Calm wind becoming north around 5 mph after midnight.

    Low: 60 °F

    Partly Cloudy

  • Labor Day

    Labor Day: Sunny, with a high near 73. Northeast wind 7 to 9 mph.

    High: 73 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 74. Southwest wind around 11 mph.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 63. South wind around 10 mph, with gusts as high as 22 mph.
Friday
A slight chance of showers before 7am, then a slight chance of showers after 2pm. Mostly sunny, with a high near 75. South wind 9 to 13 mph. Chance of precipitation is 20%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 57. South wind around 8 mph becoming northwest after midnight. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A slight chance of showers before 10am. Sunny, with a high near 74. West wind around 10 mph. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 60. West wind around 6 mph.
Sunday
Sunny, with a high near 73. North wind around 8 mph.
Sunday Night
Partly cloudy, with a low around 60. Calm wind becoming north around 5 mph after midnight.
Labor Day
Sunny, with a high near 73. Northeast wind 7 to 9 mph.
Monday Night
Partly cloudy, with a low around 60. Northeast wind around 6 mph.
Tuesday
Sunny, with a high near 72. East wind 8 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 59. East wind around 6 mph.
Wednesday
Mostly sunny, with a high near 72. East wind 8 to 10 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:
2:12 pm EDT Aug 28, 2025
Forecast Valid:
2pm EDT Aug 28, 2025-6pm EDT Sep 3, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation