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.

Fog/Mist

36°F

2°C

Humidity 89%
Wind Speed S 5 mph
Barometer NA
Dewpoint 33°F (1°C)
Visibility 4.00 mi
Wind Chill32°F (0°C)
Last update 17 Jan 7:53 am EST
Extended Forecast for

2 Miles ENE Siasconset MA

  • Today

    Today: A slight chance of rain after 2pm. Partly sunny, with a high near 45. South wind 9 to 14 mph. Chance of precipitation is 20%.

    High: 45 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Tonight

    Tonight: Increasing clouds, with a low around 35. West wind 6 to 10 mph.

    Low: 35 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Rain likely before 1pm, then snow. High near 39. Southwest wind 5 to 8 mph becoming light and variable in the afternoon. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 39 °F

    Chance Rain
    then
    Rain/Snow

  • Sunday Night

    Sunday Night: Snow, mainly before 1am. Low around 29. Northeast wind 8 to 10 mph becoming west after midnight. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    Low: 29 °F

    Snow then
    Snow Likely

  • M.L.King Day

    M.L.King Day: Partly sunny, with a high near 36. Breezy, with a southwest wind 13 to 18 mph increasing to 19 to 24 mph in the afternoon.

    High: 36 °F

    Partly Sunny
    and Breezy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 24. Breezy, with a west wind 14 to 22 mph.

    Low: 24 °F

    Mostly Cloudy
    and Breezy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 29. West wind around 16 mph, with gusts as high as 28 mph.

    High: 29 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 20. West wind 13 to 15 mph.

    Low: 20 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 39. West wind 13 to 15 mph, with gusts as high as 25 mph.

    High: 39 °F

    Mostly Sunny

Detailed Forecast

Today
A slight chance of rain after 2pm. Partly sunny, with a high near 45. South wind 9 to 14 mph. Chance of precipitation is 20%.
Tonight
Increasing clouds, with a low around 35. West wind 6 to 10 mph.
Sunday
Rain likely before 1pm, then snow. High near 39. Southwest wind 5 to 8 mph becoming light and variable in the afternoon. Chance of precipitation is 90%. Little or no snow accumulation expected.
Sunday Night
Snow, mainly before 1am. Low around 29. Northeast wind 8 to 10 mph becoming west after midnight. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
M.L.King Day
Partly sunny, with a high near 36. Breezy, with a southwest wind 13 to 18 mph increasing to 19 to 24 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 24. Breezy, with a west wind 14 to 22 mph.
Tuesday
Mostly sunny, with a high near 29. West wind around 16 mph, with gusts as high as 28 mph.
Tuesday Night
Partly cloudy, with a low around 20. West wind 13 to 15 mph.
Wednesday
Mostly sunny, with a high near 39. West wind 13 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
Mostly cloudy, with a low around 32. Southwest wind 13 to 15 mph.
Thursday
A chance of rain and snow showers. Partly sunny, with a high near 40. West wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Thursday Night
A chance of snow showers. Mostly cloudy, with a low around 27. West wind 10 to 13 mph. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 33. Northwest wind around 11 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:
5:56 am EST Jan 17, 2026
Forecast Valid:
7am EST Jan 17, 2026-6pm EST Jan 23, 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