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.

Partly Cloudy

33°F

1°C

Humidity 58%
Wind Speed SW 16 mph
Barometer 30.11 in (1019.7 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 9 Dec 6:53 pm EST
Extended Forecast for

4 Miles N Siasconset MA

  • Tonight

    Tonight: A slight chance of rain between 3am and 4am. Mostly cloudy, with a temperature rising to around 45 by 5am. Breezy, with a southwest wind 13 to 23 mph. Chance of precipitation is 20%.

    Low: 35 °F⇑

    Breezy.
    Mostly Cloudy
    then Slight
    Chance Rain

  • Wednesday

    Wednesday: A slight chance of rain after 3pm. Mostly cloudy, with a high near 51. Breezy, with a south wind 17 to 22 mph. Chance of precipitation is 20%.

    High: 51 °F

    Breezy.
    Mostly Cloudy
    then Slight
    Chance Rain

  • Wednesday Night

    Wednesday Night: A chance of rain, mainly before 4am. Mostly cloudy, with a low around 36. Breezy, with a west wind 18 to 24 mph, with gusts as high as 36 mph. Chance of precipitation is 50%.

    Low: 36 °F

    Chance Rain
    and Breezy

  • Thursday

    Thursday: A slight chance of rain before 10am. Mostly sunny, with a high near 44. Windy, with a west wind 22 to 31 mph. Chance of precipitation is 20%.

    High: 44 °F

    Windy. Slight
    Chance Rain
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: A slight chance of snow. Partly cloudy, with a low around 28. Windy, with a west wind 30 to 33 mph. Chance of precipitation is 20%.

    Low: 28 °F

    Slight Chance
    Snow and
    Windy

  • Friday

    Friday: Sunny, with a high near 37. Windy, with a west wind 23 to 28 mph.

    High: 37 °F

    Sunny and
    Windy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 33. Breezy, with a west wind 14 to 22 mph.

    Low: 33 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Saturday

    Saturday: A chance of rain before 4pm. Mostly cloudy, with a high near 42. West wind 13 to 18 mph. Chance of precipitation is 30%.

    High: 42 °F

    Chance Rain

  • Saturday Night

    Saturday Night: A chance of rain between 1am and 5am, then a chance of snow after 5am. Mostly cloudy, with a low around 34. West wind 16 to 18 mph. Chance of precipitation is 30%.

    Low: 34 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

Detailed Forecast

Tonight
A slight chance of rain between 3am and 4am. Mostly cloudy, with a temperature rising to around 45 by 5am. Breezy, with a southwest wind 13 to 23 mph. Chance of precipitation is 20%.
Wednesday
A slight chance of rain after 3pm. Mostly cloudy, with a high near 51. Breezy, with a south wind 17 to 22 mph. Chance of precipitation is 20%.
Wednesday Night
A chance of rain, mainly before 4am. Mostly cloudy, with a low around 36. Breezy, with a west wind 18 to 24 mph, with gusts as high as 36 mph. Chance of precipitation is 50%.
Thursday
A slight chance of rain before 10am. Mostly sunny, with a high near 44. Windy, with a west wind 22 to 31 mph. Chance of precipitation is 20%.
Thursday Night
A slight chance of snow. Partly cloudy, with a low around 28. Windy, with a west wind 30 to 33 mph. Chance of precipitation is 20%.
Friday
Sunny, with a high near 37. Windy, with a west wind 23 to 28 mph.
Friday Night
Partly cloudy, with a low around 33. Breezy, with a west wind 14 to 22 mph.
Saturday
A chance of rain before 4pm. Mostly cloudy, with a high near 42. West wind 13 to 18 mph. Chance of precipitation is 30%.
Saturday Night
A chance of rain between 1am and 5am, then a chance of snow after 5am. Mostly cloudy, with a low around 34. West wind 16 to 18 mph. Chance of precipitation is 30%.
Sunday
A chance of rain and snow before 9am, then rain likely. Mostly cloudy, with a high near 41. Breezy, with a west wind 17 to 23 mph. Chance of precipitation is 60%.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 25. Windy, with a northwest wind 26 to 28 mph. Chance of precipitation is 50%.
Monday
A chance of snow. Mostly sunny, with a high near 32. Windy, with a northwest wind 21 to 26 mph. Chance of precipitation is 30%.
Monday Night
Mostly cloudy, with a low around 26. Blustery, with a northwest wind 16 to 20 mph.
Tuesday
Partly sunny, with a high near 36. West wind 15 to 17 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Siasconset MA
 41.33°N 69.98°W (Elev. 0 ft)
Last Update:
12:52 pm EST Dec 9, 2025
Forecast Valid:
7pm EST Dec 9, 2025-6pm EST Dec 16, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation