National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Nantucket, Nantucket Memorial Airport (KACK)

Lat: 41.25°NLon: 70.06°WElev: 46ft.

Mostly Cloudy and Breezy

31°F

-1°C

Humidity 38%
Wind Speed W 22 G 39 mph
Barometer NA
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 30 Dec 10:53 pm EST
Extended Forecast for

2 Miles ENE Siasconset MA

Winter Weather Advisory December 31, 07:00pm until January 1, 01:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • Tonight

    Tonight: Mostly cloudy, with a low around 27. Breezy, with a west wind 18 to 23 mph, with gusts as high as 41 mph.

    Low: 27 °F

    Mostly Cloudy
    and Breezy

  • Wednesday

    Wednesday: A slight chance of snow. Mostly cloudy, with a high near 33. West wind 13 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

    High: 33 °F

    Slight Chance
    Snow

  • Wednesday Night

    Wednesday Night: Snow likely, mainly after 2am. Mostly cloudy, with a low around 31. West wind 9 to 11 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    Low: 31 °F

    Chance Snow
    then Snow
    Likely

  • New Year's Day

    New Year's Day: Snow likely, mainly before 11am. The snow could be heavy at times. Cloudy, then gradually becoming mostly sunny, with a high near 31. West wind 11 to 16 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

    High: 31 °F

    Heavy Snow

  • Thursday Night

    Thursday Night: A slight chance of snow before 9pm. Partly cloudy, with a low around 20. Northwest wind 15 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.

    Low: 20 °F

    Slight Chance
    Snow then
    Mostly Clear

  • Friday

    Friday: A slight chance of snow after 2pm. Partly sunny, with a high near 33. West wind 14 to 16 mph. Chance of precipitation is 20%.

    High: 33 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 26. West wind 11 to 14 mph.

    Low: 26 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 31. West wind 11 to 14 mph.

    High: 31 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 22. Northwest wind 10 to 13 mph.

    Low: 22 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 27. Breezy, with a west wind 18 to 23 mph, with gusts as high as 41 mph.
Wednesday
A slight chance of snow. Mostly cloudy, with a high near 33. West wind 13 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Wednesday Night
Snow likely, mainly after 2am. Mostly cloudy, with a low around 31. West wind 9 to 11 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
New Year's Day
Snow likely, mainly before 11am. The snow could be heavy at times. Cloudy, then gradually becoming mostly sunny, with a high near 31. West wind 11 to 16 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
Thursday Night
A slight chance of snow before 9pm. Partly cloudy, with a low around 20. Northwest wind 15 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Friday
A slight chance of snow after 2pm. Partly sunny, with a high near 33. West wind 14 to 16 mph. Chance of precipitation is 20%.
Friday Night
Mostly cloudy, with a low around 26. West wind 11 to 14 mph.
Saturday
Mostly sunny, with a high near 31. West wind 11 to 14 mph.
Saturday Night
Partly cloudy, with a low around 22. Northwest wind 10 to 13 mph.
Sunday
Mostly sunny, with a high near 32. Northwest wind 9 to 11 mph.
Sunday Night
Partly cloudy, with a low around 26. West wind around 9 mph.
Monday
A chance of rain. Mostly cloudy, with a high near 37. Southwest wind 9 to 11 mph. Chance of precipitation is 30%.
Monday Night
A chance of rain and snow. Mostly cloudy, with a low around 29. West wind around 10 mph. Chance of precipitation is 50%.
Tuesday
A chance of rain and snow. Mostly cloudy, with a high near 36. Northwest wind 11 to 13 mph. Chance of precipitation is 30%.
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Forecast Area
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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:
6:01 pm EST Dec 30, 2025
Forecast Valid:
11pm EST Dec 30, 2025-6pm EST Jan 6, 2026
 
Forecast Discussion
 
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Additional Resources

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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