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Hazardous Weather Conditions

Current conditions at

Nantucket, Nantucket Memorial Airport (KACK)

Lat: 41.25°NLon: 70.06°WElev: 46ft.

Fair

16°F

-9°C

Humidity 65%
Wind Speed NW 5 mph
Barometer 30.10 in (1019.2 mb)
Dewpoint 6°F (-14°C)
Visibility 10.00 mi
Wind Chill8°F (-13°C)
Last update 31 Jan 11:53 am EST
Extended Forecast for

4 Miles N Siasconset MA

Coastal Flood Watch February 1, 08:00am until February 2, 02:00pm
Winter Weather Advisory February 1, 04:00am until February 2, 04:00am
Wind Advisory February 1, 05:00am until February 1, 11:00pm
Click here for hazard details and duration
Coastal Flood Watch
Winter Weather Advisory
Wind Advisory

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 29. West wind 7 to 9 mph.

    High: 29 °F

    Mostly Sunny

  • Tonight

    Tonight: A chance of snow, mainly after 1am. Increasing clouds, with a temperature rising to around 30 by 4am. Blustery, with a northeast wind 9 to 14 mph increasing to 20 to 25 mph after midnight. Winds could gust as high as 37 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 22 °F⇑

    Mostly Cloudy
    then Chance
    Snow and
    Blustery

  • Sunday

    Sunday: Snow. High near 33. Very windy, with a northeast wind 30 to 40 mph, with gusts as high as 55 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 33 °F

    Snow and Very
    Windy

  • Sunday Night

    Sunday Night: A chance of snow, mainly before 1am. Cloudy, with a low around 25. Very windy, with a north wind 35 to 40 mph decreasing to 25 to 30 mph after midnight. Winds could gust as high as 55 mph. Chance of precipitation is 30%. New snow accumulation of 1 to 2 inches possible.

    Low: 25 °F

    Chance Snow
    and Very
    Windy

  • Monday

    Monday: Partly sunny, with a high near 32. Breezy, with a northwest wind 14 to 22 mph.

    High: 32 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 27. Northwest wind 9 to 13 mph.

    Low: 27 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 31. West wind around 8 mph.

    High: 31 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 27. West wind around 8 mph.

    Low: 27 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 32. West wind 8 to 10 mph.

    High: 32 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 29. West wind 7 to 9 mph.
Tonight
A chance of snow, mainly after 1am. Increasing clouds, with a temperature rising to around 30 by 4am. Blustery, with a northeast wind 9 to 14 mph increasing to 20 to 25 mph after midnight. Winds could gust as high as 37 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Sunday
Snow. High near 33. Very windy, with a northeast wind 30 to 40 mph, with gusts as high as 55 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Sunday Night
A chance of snow, mainly before 1am. Cloudy, with a low around 25. Very windy, with a north wind 35 to 40 mph decreasing to 25 to 30 mph after midnight. Winds could gust as high as 55 mph. Chance of precipitation is 30%. New snow accumulation of 1 to 2 inches possible.
Monday
Partly sunny, with a high near 32. Breezy, with a northwest wind 14 to 22 mph.
Monday Night
Partly cloudy, with a low around 27. Northwest wind 9 to 13 mph.
Tuesday
Sunny, with a high near 31. West wind around 8 mph.
Tuesday Night
Partly cloudy, with a low around 27. West wind around 8 mph.
Wednesday
Partly sunny, with a high near 32. West wind 8 to 10 mph.
Wednesday Night
Mostly cloudy, with a low around 25. Northwest wind 8 to 10 mph.
Thursday
Partly sunny, with a high near 30. Northwest wind around 11 mph.
Thursday Night
Mostly cloudy, with a low around 26. North wind 11 to 14 mph.
Friday
Partly sunny, with a high near 33. Northwest wind 14 to 16 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Siasconset MA
 41.33°N 69.98°W (Elev. 0 ft)
Last Update:
11:47 am EST Jan 31, 2026
Forecast Valid:
12pm EST Jan 31, 2026-6pm EST Feb 6, 2026
 
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