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.

Overcast

42°F

6°C

Humidity 68%
Wind Speed W 9 mph
Barometer NA
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 3 Dec 9:53 pm EST
Extended Forecast for

2 Miles ENE Siasconset MA

  • Tonight

    Tonight: Mostly cloudy, with a low around 32. West wind 8 to 11 mph, with gusts as high as 21 mph.

    Low: 32 °F

    Mostly Cloudy

  • Thursday

    Thursday: A slight chance of showers between noon and 4pm. Mostly sunny during the morning, then cloudy during the afternoon, with a high near 43. Breezy, with a west wind 14 to 21 mph, with gusts as high as 38 mph. Chance of precipitation is 20%.

    High: 43 °F

    Partly Sunny
    then Slight
    Chance
    Showers and
    Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 21. Blustery, with a northwest wind 15 to 24 mph, with gusts as high as 43 mph.

    Low: 21 °F

    Mostly Clear
    and Blustery

  • Friday

    Friday: Increasing clouds, with a high near 33. North wind 8 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.

    High: 33 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: A slight chance of snow showers between 8pm and 9pm, then a chance of rain showers. Cloudy, with a low around 31. Southwest wind around 9 mph becoming southeast after midnight. Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 31 °F

    Chance
    Rain/Snow
    then Chance
    Showers

  • Saturday

    Saturday: A chance of showers. Cloudy, with a high near 43. East wind 8 to 10 mph. Chance of precipitation is 50%.

    High: 43 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers before 10pm. Mostly cloudy, with a low around 34. Northwest wind 6 to 8 mph. Chance of precipitation is 30%.

    Low: 34 °F

    Chance
    Showers then
    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 43. Northwest wind 8 to 11 mph.

    High: 43 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 25. Northwest wind 10 to 14 mph.

    Low: 25 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 32. West wind 8 to 11 mph, with gusts as high as 21 mph.
Thursday
A slight chance of showers between noon and 4pm. Mostly sunny during the morning, then cloudy during the afternoon, with a high near 43. Breezy, with a west wind 14 to 21 mph, with gusts as high as 38 mph. Chance of precipitation is 20%.
Thursday Night
Mostly clear, with a low around 21. Blustery, with a northwest wind 15 to 24 mph, with gusts as high as 43 mph.
Friday
Increasing clouds, with a high near 33. North wind 8 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.
Friday Night
A slight chance of snow showers between 8pm and 9pm, then a chance of rain showers. Cloudy, with a low around 31. Southwest wind around 9 mph becoming southeast after midnight. Chance of precipitation is 50%. Little or no snow accumulation expected.
Saturday
A chance of showers. Cloudy, with a high near 43. East wind 8 to 10 mph. Chance of precipitation is 50%.
Saturday Night
A chance of showers before 10pm. Mostly cloudy, with a low around 34. Northwest wind 6 to 8 mph. Chance of precipitation is 30%.
Sunday
Partly sunny, with a high near 43. Northwest wind 8 to 11 mph.
Sunday Night
Mostly cloudy, with a low around 25. Northwest wind 10 to 14 mph.
Monday
Partly sunny, with a high near 33. North wind around 16 mph, with gusts as high as 26 mph.
Monday Night
Mostly cloudy, with a low around 23. North wind 14 to 16 mph.
Tuesday
Mostly sunny, with a high near 38. Northwest wind 11 to 14 mph becoming southwest in the afternoon.
Tuesday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 30. West wind around 13 mph. Chance of precipitation is 40%.
Wednesday
A chance of rain and snow showers. Mostly cloudy, with a high near 46. West wind 13 to 15 mph. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Siasconset MA
 41.28°N 69.97°W (Elev. 56 ft)
Last Update:
3:27 pm EST Dec 3, 2025
Forecast Valid:
10pm EST Dec 3, 2025-6pm EST Dec 10, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation