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

Nantucket, Nantucket Memorial Airport (KACK)

Lat: 41.25°NLon: 70.06°WElev: 46ft.

Light Rain Fog

49°F

9°C

Humidity 97%
Wind Speed SW 20 mph
Barometer 29.46 in (997.7 mb)
Dewpoint 48°F (9°C)
Visibility 0.50 mi
Wind Chill42°F (6°C)
Last update 29 Dec 10:53 am EST
Extended Forecast for

2 Miles ENE Siasconset MA

  • Today

    Today: Rain, mainly after 2pm. Areas of fog. High near 51. Breezy, with a south wind 16 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 51 °F

    Rain and
    Areas Fog

  • Tonight

    Tonight: Rain showers likely before 11pm, then a slight chance of snow showers between 11pm and 3am. Cloudy, then gradually becoming partly cloudy, with a low around 27. Windy, with a west wind 17 to 26 mph, with gusts as high as 40 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 27 °F

    Rain/Snow
    Likely and
    Windy

  • Tuesday

    Tuesday: Partly sunny, with a high near 32. Windy, with a west wind 25 to 30 mph, with gusts as high as 48 mph.

    High: 32 °F

    Partly Sunny
    and Windy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 27. Windy, with a west wind 18 to 26 mph, with gusts as high as 45 mph.

    Low: 27 °F

    Mostly Cloudy
    and Windy

  • Wednesday

    Wednesday: A slight chance of snow showers after 9am. Mostly cloudy, with a high near 37. Breezy, with a west wind 16 to 20 mph. Chance of precipitation is 20%.

    High: 37 °F

    Slight Chance
    Snow Showers
    and Breezy

  • Wednesday Night

    Wednesday Night: Snow showers likely, mainly between 3am and 5am. Cloudy, with a low around 23. Southwest wind around 16 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 23 °F

    Snow Showers
    Likely

  • New Year's Day

    New Year's Day: A chance of snow showers before 7am. Partly sunny, with a high near 30. West wind 14 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.

    High: 30 °F

    Chance Snow
    Showers then
    Partly Sunny

  • Thursday Night

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

    Low: 22 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 29. West wind 10 to 13 mph.

    High: 29 °F

    Partly Sunny

Detailed Forecast

Today
Rain, mainly after 2pm. Areas of fog. High near 51. Breezy, with a south wind 16 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
Rain showers likely before 11pm, then a slight chance of snow showers between 11pm and 3am. Cloudy, then gradually becoming partly cloudy, with a low around 27. Windy, with a west wind 17 to 26 mph, with gusts as high as 40 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Tuesday
Partly sunny, with a high near 32. Windy, with a west wind 25 to 30 mph, with gusts as high as 48 mph.
Tuesday Night
Mostly cloudy, with a low around 27. Windy, with a west wind 18 to 26 mph, with gusts as high as 45 mph.
Wednesday
A slight chance of snow showers after 9am. Mostly cloudy, with a high near 37. Breezy, with a west wind 16 to 20 mph. Chance of precipitation is 20%.
Wednesday Night
Snow showers likely, mainly between 3am and 5am. Cloudy, with a low around 23. Southwest wind around 16 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
New Year's Day
A chance of snow showers before 7am. Partly sunny, with a high near 30. West wind 14 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 22. Northwest wind 10 to 13 mph.
Friday
Partly sunny, with a high near 29. West wind 10 to 13 mph.
Friday Night
Mostly cloudy, with a low around 24. West wind around 11 mph.
Saturday
Partly sunny, with a high near 34. West wind 9 to 11 mph, with gusts as high as 21 mph.
Saturday Night
Mostly cloudy, with a low around 25. Northwest wind around 11 mph.
Sunday
Partly sunny, with a high near 33. North wind 10 to 13 mph.
Basemap Options
Click map to change the forecast location
Loading map...
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:
5:42 am EST Dec 29, 2025
Forecast Valid:
11am EST Dec 29, 2025-6pm EST Jan 4, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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