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

15°F

-9°C

Humidity 51%
Wind Speed NW 14 mph
Barometer 30.05 in (1017.5 mb)
Dewpoint 0°F (-18°C)
Visibility 10.00 mi
Wind Chill0°F (-18°C)
Last update 30 Jan 7:53 pm EST
Extended Forecast for

2 Miles ENE Siasconset MA

Coastal Flood Watch February 1, 08:00am until February 2, 02:00pm
Winter Storm Watch February 1, 04:00am until February 2, 04:00am
Click here for hazard details and duration
Coastal Flood Watch
Winter Storm Watch

  • Tonight

    Tonight: Partly cloudy, with a low around 11. West wind 9 to 15 mph.

    Low: 11 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 27. West wind 6 to 8 mph.

    High: 27 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of snow, mainly after 1am. Mostly cloudy, with a temperature rising to around 28 by 5am. Blustery, with a northeast wind 6 to 11 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.

    Low: 21 °F⇑

    Slight Chance
    Snow then
    Chance Snow
    and Blustery

  • Sunday

    Sunday: Snow. The snow could be heavy at times. Patchy fog before 8am. High near 33. Windy, with a north wind 23 to 31 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 7 inches possible.

    High: 33 °F

    Heavy Snow
    and Patchy
    Fog

  • Sunday Night

    Sunday Night: Snow likely, mainly before 8pm. Cloudy, with a low around 24. Windy, with a northwest wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

    Low: 24 °F

    Snow Likely
    and Windy

  • Monday

    Monday: Partly sunny, with a high near 32. Northwest wind 11 to 17 mph.

    High: 32 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 25. Northwest wind 8 to 10 mph.

    Low: 25 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 32. West wind 7 to 9 mph.

    High: 32 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 25. Northwest wind around 8 mph.

    Low: 25 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 11. West wind 9 to 15 mph.
Saturday
Mostly sunny, with a high near 27. West wind 6 to 8 mph.
Saturday Night
A chance of snow, mainly after 1am. Mostly cloudy, with a temperature rising to around 28 by 5am. Blustery, with a northeast wind 6 to 11 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.
Sunday
Snow. The snow could be heavy at times. Patchy fog before 8am. High near 33. Windy, with a north wind 23 to 31 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 7 inches possible.
Sunday Night
Snow likely, mainly before 8pm. Cloudy, with a low around 24. Windy, with a northwest wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Monday
Partly sunny, with a high near 32. Northwest wind 11 to 17 mph.
Monday Night
Partly cloudy, with a low around 25. Northwest wind 8 to 10 mph.
Tuesday
Sunny, with a high near 32. West wind 7 to 9 mph.
Tuesday Night
Partly cloudy, with a low around 25. Northwest wind around 8 mph.
Wednesday
Mostly sunny, with a high near 32. West wind 7 to 9 mph.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 24. Northwest wind around 8 mph. Chance of precipitation is 30%.
Thursday
A chance of snow. Mostly cloudy, with a high near 31. North wind around 10 mph. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 24. North wind around 11 mph.
Friday
Partly sunny, with a high near 31. Northwest wind 11 to 13 mph.
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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:
2:48 pm EST Jan 30, 2026
Forecast Valid:
8pm EST Jan 30, 2026-6pm EST Feb 6, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation