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

21°F

-6°C

Humidity 71%
Wind Speed W 6 mph
Barometer 29.90 in (1012.4 mb)
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Wind Chill13°F (-11°C)
Last update 25 Feb 12:53 am EST
Extended Forecast for

Nantucket MA

  • Overnight

    Overnight: Increasing clouds, with a low around 24. Southwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 24 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: A chance of rain and snow before 10am, then rain likely. Cloudy, with a high near 39. Breezy, with a southwest wind 13 to 20 mph, with gusts as high as 34 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 39 °F

    Rain/Snow
    Likely then
    Rain Likely
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 31. Southwest wind 11 to 14 mph.

    Low: 31 °F

    Mostly Cloudy

  • Thursday

    Thursday: A slight chance of rain and snow between 1pm and 2pm, then a slight chance of snow after 2pm. Mostly sunny, with a high near 37. West wind around 10 mph. Chance of precipitation is 20%.

    High: 37 °F

    Mostly Sunny
    then Slight
    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A chance of snow, mainly before midnight. Mostly cloudy, with a low around 28. Northwest wind around 7 mph. Chance of precipitation is 30%. New snow accumulation of around an inch possible.

    Low: 28 °F

    Chance Snow

  • Friday

    Friday: Mostly sunny, with a high near 36. North wind around 6 mph becoming west in the afternoon.

    High: 36 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 31. South wind around 6 mph.

    Low: 31 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 41. South wind 7 to 9 mph.

    High: 41 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 31. Southwest wind 6 to 8 mph becoming northwest after midnight.

    Low: 31 °F

    Partly Cloudy

Detailed Forecast

Overnight
Increasing clouds, with a low around 24. Southwest wind around 10 mph, with gusts as high as 20 mph.
Wednesday
A chance of rain and snow before 10am, then rain likely. Cloudy, with a high near 39. Breezy, with a southwest wind 13 to 20 mph, with gusts as high as 34 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Wednesday Night
Mostly cloudy, with a low around 31. Southwest wind 11 to 14 mph.
Thursday
A slight chance of rain and snow between 1pm and 2pm, then a slight chance of snow after 2pm. Mostly sunny, with a high near 37. West wind around 10 mph. Chance of precipitation is 20%.
Thursday Night
A chance of snow, mainly before midnight. Mostly cloudy, with a low around 28. Northwest wind around 7 mph. Chance of precipitation is 30%. New snow accumulation of around an inch possible.
Friday
Mostly sunny, with a high near 36. North wind around 6 mph becoming west in the afternoon.
Friday Night
Mostly clear, with a low around 31. South wind around 6 mph.
Saturday
Mostly sunny, with a high near 41. South wind 7 to 9 mph.
Saturday Night
Partly cloudy, with a low around 31. Southwest wind 6 to 8 mph becoming northwest after midnight.
Sunday
Mostly sunny, with a high near 36. Northwest wind 9 to 11 mph.
Sunday Night
Partly cloudy, with a low around 21. North wind 10 to 13 mph.
Monday
A chance of snow. Mostly cloudy, with a high near 29. Northeast wind 10 to 13 mph. Chance of precipitation is 30%.
Monday Night
A chance of snow. Mostly cloudy, with a low around 23. Northeast wind around 11 mph. Chance of precipitation is 30%.
Tuesday
A chance of snow. Partly sunny, with a high near 36. Northeast wind around 11 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:
1:01 am EST Feb 25, 2026
Forecast Valid:
1am EST Feb 25, 2026-6pm EST Mar 3, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation