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.

A Few Clouds

24°F

-4°C

Humidity 48%
Wind Speed W 13 G 22 mph
Barometer 30.23 in (1023.8 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Wind Chill12°F (-11°C)
Last update 20 Jan 4:53 pm EST
Extended Forecast for

Nantucket MA

  • Tonight

    Tonight: Mostly clear, with a low around 17. West wind 10 to 15 mph, with gusts as high as 29 mph.

    Low: 17 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 41. Southwest wind 8 to 14 mph.

    High: 41 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A chance of rain, mainly between midnight and 5am. Mostly cloudy, with a temperature rising to around 41 by 1am. Southwest wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    Low: 33 °F⇑

    Mostly Cloudy
    then Chance
    Rain

  • Thursday

    Thursday: A slight chance of rain before 9am. Mostly sunny, with a high near 43. West wind 14 to 16 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.

    High: 43 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 31. West wind 11 to 14 mph, with gusts as high as 31 mph.

    Low: 31 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 36. West wind 11 to 15 mph, with gusts as high as 28 mph.

    High: 36 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 12. Northwest wind 16 to 18 mph, with gusts as high as 29 mph.

    Low: 12 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 20. Northwest wind 14 to 17 mph.

    High: 20 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of snow after 1am. Mostly cloudy, with a low around 14. Northwest wind 10 to 14 mph. Chance of precipitation is 40%.

    Low: 14 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

Tonight
Mostly clear, with a low around 17. West wind 10 to 15 mph, with gusts as high as 29 mph.
Wednesday
Partly sunny, with a high near 41. Southwest wind 8 to 14 mph.
Wednesday Night
A chance of rain, mainly between midnight and 5am. Mostly cloudy, with a temperature rising to around 41 by 1am. Southwest wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Thursday
A slight chance of rain before 9am. Mostly sunny, with a high near 43. West wind 14 to 16 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 31. West wind 11 to 14 mph, with gusts as high as 31 mph.
Friday
Mostly cloudy, with a high near 36. West wind 11 to 15 mph, with gusts as high as 28 mph.
Friday Night
Mostly cloudy, with a low around 12. Northwest wind 16 to 18 mph, with gusts as high as 29 mph.
Saturday
Mostly sunny, with a high near 20. Northwest wind 14 to 17 mph.
Saturday Night
A chance of snow after 1am. Mostly cloudy, with a low around 14. Northwest wind 10 to 14 mph. Chance of precipitation is 40%.
Sunday
A chance of snow. Cloudy, with a high near 27. Northeast wind 11 to 14 mph. Chance of precipitation is 50%.
Sunday Night
A chance of snow. Cloudy, with a low around 22. Northeast wind around 14 mph. Chance of precipitation is 50%.
Monday
A chance of snow. Mostly cloudy, with a high near 29. North wind around 14 mph. Chance of precipitation is 50%.
Monday Night
A chance of snow. Mostly cloudy, with a low around 18. Northwest wind around 15 mph. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 29. West wind around 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:
12:44 pm EST Jan 20, 2026
Forecast Valid:
5pm EST Jan 20, 2026-6pm EST Jan 27, 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