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

40°F

4°C

Humidity 97%
Wind Speed NW 5 mph
Barometer 29.69 in (1005.5 mb)
Dewpoint 39°F (4°C)
Visibility 1.00 mi
Wind Chill36°F (2°C)
Last update 11 Jan 11:53 am EST
Extended Forecast for

2 Miles E Siasconset MA

  • This Afternoon

    This Afternoon: Scattered showers before 3pm, then a chance of rain after 5pm. Patchy fog after 5pm. Otherwise, cloudy, with a high near 43. West wind 10 to 15 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 43 °F

    Chance Rain
    and Patchy
    Fog

  • Tonight

    Tonight: A slight chance of rain before 9pm, then a slight chance of rain and snow showers between 9pm and 10pm. Patchy fog before 7pm. Otherwise, partly cloudy, with a low around 28. Breezy, with a west wind 20 to 24 mph, with gusts as high as 43 mph. Chance of precipitation is 20%.

    Low: 28 °F

    Slight Chance
    Rain/Snow and
    Patchy Fog

  • Monday

    Monday: Sunny, with a high near 38. Breezy, with a west wind 15 to 22 mph, with gusts as high as 34 mph.

    High: 38 °F

    Sunny and
    Breezy then
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 34. West wind 10 to 13 mph.

    Low: 34 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 41. West wind 10 to 13 mph.

    High: 41 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 37. Southwest wind 10 to 14 mph, with gusts as high as 24 mph.

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Cloudy, with a high near 45. Southwest wind 11 to 15 mph.

    High: 45 °F

    Cloudy

  • Wednesday Night

    Wednesday Night: A chance of rain after 8pm. Cloudy, with a low around 34. Southwest wind 8 to 10 mph. Chance of precipitation is 40%.

    Low: 34 °F

    Chance Rain

  • Thursday

    Thursday: A chance of rain. Mostly cloudy, with a high near 40. West wind 8 to 11 mph. Chance of precipitation is 40%.

    High: 40 °F

    Chance Rain

Detailed Forecast

This Afternoon
Scattered showers before 3pm, then a chance of rain after 5pm. Patchy fog after 5pm. Otherwise, cloudy, with a high near 43. West wind 10 to 15 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
A slight chance of rain before 9pm, then a slight chance of rain and snow showers between 9pm and 10pm. Patchy fog before 7pm. Otherwise, partly cloudy, with a low around 28. Breezy, with a west wind 20 to 24 mph, with gusts as high as 43 mph. Chance of precipitation is 20%.
Monday
Sunny, with a high near 38. Breezy, with a west wind 15 to 22 mph, with gusts as high as 34 mph.
Monday Night
Partly cloudy, with a low around 34. West wind 10 to 13 mph.
Tuesday
Sunny, with a high near 41. West wind 10 to 13 mph.
Tuesday Night
Mostly cloudy, with a low around 37. Southwest wind 10 to 14 mph, with gusts as high as 24 mph.
Wednesday
Cloudy, with a high near 45. Southwest wind 11 to 15 mph.
Wednesday Night
A chance of rain after 8pm. Cloudy, with a low around 34. Southwest wind 8 to 10 mph. Chance of precipitation is 40%.
Thursday
A chance of rain. Mostly cloudy, with a high near 40. West wind 8 to 11 mph. Chance of precipitation is 40%.
Thursday Night
A chance of rain before 11pm, then a chance of snow. Mostly cloudy, with a low around 26. North wind 10 to 15 mph. Chance of precipitation is 40%.
Friday
A chance of snow. Partly sunny, with a high near 34. North wind 14 to 16 mph. Chance of precipitation is 30%.
Friday Night
Mostly cloudy, with a low around 27. West wind 10 to 13 mph.
Saturday
Mostly sunny, with a high near 37. West 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 E Siasconset MA
 41.28°N 69.97°W (Elev. 56 ft)
Last Update:
9:46 am EST Jan 11, 2026
Forecast Valid:
12pm EST Jan 11, 2026-6pm EST Jan 17, 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