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 and Breezy

15°F

-9°C

Humidity 36%
Wind Speed NW 23 G 40 mph
Barometer 30.33 in (1027.0 mb)
Dewpoint -7°F (-22°C)
Visibility 10.00 mi
Wind Chill-3°F (-19°C)
Last update 24 Jan 2:53 am EST
Extended Forecast for

3 Miles NNE Siasconset MA

Cold Weather Advisory January 24, 03:23am until January 24, 10:00am
Winter Storm Warning January 25, 07:00am until January 26, 08:00pm
Click here for hazard details and duration
Cold Weather Advisory
Winter Storm Warning
  •  
    Cold Weather Advisory January 24, 03:23am until January 24, 10:00am

    NOW until 10:00am Sat

    Cold Weather Advisory

  • Overnight

    Low: 13 °F

    Partly Cloudy
    and Windy

  • Saturday

    Saturday: Mostly sunny, with a high near 19. Wind chill values as low as -5. Blustery, with a northwest wind 15 to 23 mph.

    High: 19 °F

    Partly Sunny
    and Blustery
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 17. Northwest wind 9 to 14 mph.

    Low: 17 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Snow. The snow could be heavy at times. Areas of fog after 3pm. Areas of freezing fog between 2pm and 3pm. High near 36. North wind 7 to 17 mph becoming east in the afternoon. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.

    High: 36 °F

    Snow Likely
    then Heavy
    Snow and
    Areas
    Freezing Fog

  • Sunday Night

    Sunday Night: Snow before midnight, then rain and sleet. The snow could be heavy at times. Low around 29. Windy, with an east wind 25 to 31 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 1 to 3 inches possible.

    Low: 29 °F

    Windy. Heavy
    Snow then
    Rain/Sleet

  • Monday

    Monday: Rain and sleet before 11am, then rain likely between 11am and 2pm, then a chance of snow after 2pm. High near 38. Breezy, with a northeast wind 17 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. Little or no snow and sleet accumulation expected.

    High: 38 °F

    Wintry Mix
    and Breezy

  • Monday Night

    Monday Night: Snow likely, mainly between 8pm and 11pm. Mostly cloudy, with a low around 18. Windy, with a northwest wind 22 to 30 mph. Chance of precipitation is 60%.

    Low: 18 °F

    Snow Likely
    and Windy

  • Tuesday

    Tuesday: A chance of snow before 9am. Partly sunny, with a high near 25. Windy, with a northwest wind 21 to 29 mph. Chance of precipitation is 30%.

    High: 25 °F

    Chance Snow
    and Windy
    then Partly
    Sunny and
    Breezy

Detailed Forecast

Overnight
Partly cloudy, with a low around 13. Wind chill values as low as -5. Windy, with a northwest wind around 26 mph.
Saturday
Mostly sunny, with a high near 19. Wind chill values as low as -5. Blustery, with a northwest wind 15 to 23 mph.
Saturday Night
Increasing clouds, with a low around 17. Northwest wind 9 to 14 mph.
Sunday
Snow. The snow could be heavy at times. Areas of fog after 3pm. Areas of freezing fog between 2pm and 3pm. High near 36. North wind 7 to 17 mph becoming east in the afternoon. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.
Sunday Night
Snow before midnight, then rain and sleet. The snow could be heavy at times. Low around 29. Windy, with an east wind 25 to 31 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 1 to 3 inches possible.
Monday
Rain and sleet before 11am, then rain likely between 11am and 2pm, then a chance of snow after 2pm. High near 38. Breezy, with a northeast wind 17 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. Little or no snow and sleet accumulation expected.
Monday Night
Snow likely, mainly between 8pm and 11pm. Mostly cloudy, with a low around 18. Windy, with a northwest wind 22 to 30 mph. Chance of precipitation is 60%.
Tuesday
A chance of snow before 9am. Partly sunny, with a high near 25. Windy, with a northwest wind 21 to 29 mph. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 20. Breezy, with a west wind 20 to 24 mph.
Wednesday
Mostly sunny, with a high near 25. Breezy, with a west wind 16 to 20 mph.
Wednesday Night
Mostly cloudy, with a low around 19. Northwest wind 13 to 16 mph.
Thursday
A chance of snow. Mostly cloudy, with a high near 26. Northwest wind 11 to 15 mph. Chance of precipitation is 30%.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 18. Blustery, with a northwest wind 18 to 22 mph. Chance of precipitation is 40%.
Friday
A chance of snow. Partly sunny, with a high near 26. Blustery, with a northwest wind 20 to 22 mph. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Siasconset MA
 41.33°N 69.98°W (Elev. 0 ft)
Last Update:
12:27 am EST Jan 24, 2026
Forecast Valid:
3am EST Jan 24, 2026-6pm EST Jan 30, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation