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

64°F

18°C

Humidity 68%
Wind Speed NE 12 mph
Barometer 30.37 in (1028.5 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 15 Sep 4:53 pm EDT
Extended Forecast for

Nantucket MA

  • Tonight

    Tonight: Mostly clear, with a low around 58. Northeast wind 5 to 8 mph becoming calm in the evening.

    Low: 58 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 70. Calm wind becoming southwest 5 to 9 mph in the morning.

    High: 70 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 63. Southwest wind around 6 mph.

    Low: 63 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 72. Southwest wind 5 to 9 mph.

    High: 72 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of showers, mainly after 2am. Mostly cloudy, with a low around 65. Southwest wind 7 to 10 mph. Chance of precipitation is 40%.

    Low: 65 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: A chance of showers, mainly before 8am. Partly sunny, with a high near 71. West wind 11 to 13 mph becoming north in the afternoon. Chance of precipitation is 30%.

    High: 71 °F

    Chance
    Showers then
    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 58. North wind 8 to 15 mph.

    Low: 58 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 66. Northeast wind 9 to 13 mph.

    High: 66 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 57. Southeast wind around 6 mph.

    Low: 57 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 58. Northeast wind 5 to 8 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 70. Calm wind becoming southwest 5 to 9 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 63. Southwest wind around 6 mph.
Thursday
Mostly sunny, with a high near 72. Southwest wind 5 to 9 mph.
Thursday Night
A chance of showers, mainly after 2am. Mostly cloudy, with a low around 65. Southwest wind 7 to 10 mph. Chance of precipitation is 40%.
Friday
A chance of showers, mainly before 8am. Partly sunny, with a high near 71. West wind 11 to 13 mph becoming north in the afternoon. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 58. North wind 8 to 15 mph.
Saturday
Sunny, with a high near 66. Northeast wind 9 to 13 mph.
Saturday Night
Mostly cloudy, with a low around 57. Southeast wind around 6 mph.
Sunday
A chance of showers after 8am. Mostly cloudy, with a high near 69. Southeast wind 9 to 13 mph. Chance of precipitation is 40%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 60. Northeast wind 11 to 13 mph. Chance of precipitation is 50%.
Monday
A chance of showers. Partly sunny, with a high near 69. Northeast wind around 16 mph. Chance of precipitation is 40%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 59. East wind around 14 mph. Chance of precipitation is 40%.
Tuesday
A chance of showers. Partly sunny, with a high near 68. Northeast wind around 17 mph. Chance of precipitation is 30%.
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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:
3:21 pm EDT Sep 15, 2026
Forecast Valid:
5pm EDT Sep 15, 2026-6pm EDT Sep 22, 2026
 
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