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.

Fair

17°F

-8°C

Humidity 37%
Wind Speed NW 13 mph
Barometer 30.52 in (1033.5 mb)
Dewpoint -5°F (-21°C)
Visibility 10.00 mi
Wind Chill3°F (-16°C)
Last update 24 Jan 2:53 pm EST
Extended Forecast for

2 Miles ENE Siasconset MA

Winter Storm Warning January 25, 07:00am until January 26, 08:00pm
Click here for hazard details and duration
Winter Storm Warning

  • Tonight

    Tonight: Increasing clouds, with a low around 15. Northwest wind 8 to 10 mph.

    Low: 15 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Snow, mainly after 1pm. The snow could be heavy at times. High near 35. North wind 6 to 14 mph becoming east in the afternoon. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    High: 35 °F

    Chance Snow
    then Heavy
    Snow

  • Sunday Night

    Sunday Night: Rain and snow before 10pm, then rain and sleet between 10pm and midnight, then rain after midnight. The snow could be heavy at times. Temperature rising to around 38 by 1am. Breezy, with an east wind 16 to 23 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 2 to 4 inches possible.

    Low: 30 °F⇑

    Breezy.
    Wintry Mix
    then Rain

  • Monday

    Monday: Rain likely, mainly before 10am. Cloudy, with a high near 37. Northwest wind 11 to 14 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 37 °F

    Rain Likely

  • Monday Night

    Monday Night: A chance of snow. Mostly cloudy, with a low around 18. Breezy, with a northwest wind 17 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 18 °F

    Chance Snow
    and Breezy

  • Tuesday

    Tuesday: A slight chance of snow before 10am. Mostly sunny, with a high near 26. Blustery, with a northwest wind 15 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.

    High: 26 °F

    Slight Chance
    Snow and
    Blustery then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 17. West wind 15 to 17 mph.

    Low: 17 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 25. West wind 13 to 15 mph.

    High: 25 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 18. Northwest wind 9 to 13 mph.

    Low: 18 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 15. Northwest wind 8 to 10 mph.
Sunday
Snow, mainly after 1pm. The snow could be heavy at times. High near 35. North wind 6 to 14 mph becoming east in the afternoon. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Sunday Night
Rain and snow before 10pm, then rain and sleet between 10pm and midnight, then rain after midnight. The snow could be heavy at times. Temperature rising to around 38 by 1am. Breezy, with an east wind 16 to 23 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 2 to 4 inches possible.
Monday
Rain likely, mainly before 10am. Cloudy, with a high near 37. Northwest wind 11 to 14 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A chance of snow. Mostly cloudy, with a low around 18. Breezy, with a northwest wind 17 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Tuesday
A slight chance of snow before 10am. Mostly sunny, with a high near 26. Blustery, with a northwest wind 15 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.
Tuesday Night
Mostly cloudy, with a low around 17. West wind 15 to 17 mph.
Wednesday
Sunny, with a high near 25. West wind 13 to 15 mph.
Wednesday Night
Mostly cloudy, with a low around 18. Northwest wind 9 to 13 mph.
Thursday
A chance of snow after 2pm. Mostly cloudy, with a high near 26. North wind 10 to 13 mph. Chance of precipitation is 30%.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 17. Northwest wind 14 to 17 mph. Chance of precipitation is 40%.
Friday
A chance of snow. Partly sunny, with a high near 26. Northwest wind around 16 mph. Chance of precipitation is 30%.
Friday Night
Mostly cloudy, with a low around 19. Northwest wind 14 to 16 mph.
Saturday
Mostly sunny, with a high near 30. Northwest wind 11 to 14 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Siasconset MA
 41.28°N 69.97°W (Elev. 56 ft)
Last Update:
2:11 pm EST Jan 24, 2026
Forecast Valid:
3pm EST Jan 24, 2026-6pm EST Jan 31, 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