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.

Fair

22°F

-6°C

Humidity 55%
Wind Speed W 12 mph
Barometer 30.10 in (1019.4 mb)
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill10°F (-12°C)
Last update 15 Dec 5:53 pm EST
Extended Forecast for

2 Miles E Siasconset MA

  • Tonight

    Tonight: Partly cloudy, with a low around 25. West wind 10 to 17 mph.

    Low: 25 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 40. West wind around 10 mph.

    High: 40 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 36. Southwest wind 10 to 16 mph.

    Low: 36 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 47. Southwest wind 16 to 18 mph, with gusts as high as 29 mph.

    High: 47 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 36. West wind 8 to 15 mph.

    Low: 36 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 49. Northwest wind 6 to 11 mph becoming south in the afternoon.

    High: 49 °F

    Sunny

  • Thursday Night

    Thursday Night: A chance of rain after 1am. Mostly cloudy, with a low around 43. Breezy, with a south wind 15 to 24 mph, with gusts as high as 49 mph. Chance of precipitation is 50%.

    Low: 43 °F

    Breezy.
    Mostly Cloudy
    then Chance
    Rain

  • Friday

    Friday: Rain, mainly before 4pm. High near 52. Breezy, with a south wind 22 to 25 mph, with gusts as high as 50 mph. Chance of precipitation is 90%.

    High: 52 °F

    Rain and
    Breezy

  • Friday Night

    Friday Night: A chance of rain before 8pm. Partly cloudy, with a low around 28. Breezy, with a west wind 18 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 30%.

    Low: 28 °F

    Breezy.
    Chance Rain
    then Mostly
    Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 25. West wind 10 to 17 mph.
Tuesday
Mostly sunny, with a high near 40. West wind around 10 mph.
Tuesday Night
Mostly cloudy, with a low around 36. Southwest wind 10 to 16 mph.
Wednesday
Mostly sunny, with a high near 47. Southwest wind 16 to 18 mph, with gusts as high as 29 mph.
Wednesday Night
Partly cloudy, with a low around 36. West wind 8 to 15 mph.
Thursday
Sunny, with a high near 49. Northwest wind 6 to 11 mph becoming south in the afternoon.
Thursday Night
A chance of rain after 1am. Mostly cloudy, with a low around 43. Breezy, with a south wind 15 to 24 mph, with gusts as high as 49 mph. Chance of precipitation is 50%.
Friday
Rain, mainly before 4pm. High near 52. Breezy, with a south wind 22 to 25 mph, with gusts as high as 50 mph. Chance of precipitation is 90%.
Friday Night
A chance of rain before 8pm. Partly cloudy, with a low around 28. Breezy, with a west wind 18 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 43. Northwest wind 11 to 14 mph.
Saturday Night
Mostly cloudy, with a low around 34. Southwest wind 13 to 15 mph.
Sunday
Mostly cloudy, with a high near 46. Southwest wind 14 to 16 mph.
Sunday Night
Partly cloudy, with a low around 31. West wind around 14 mph.
Monday
Mostly sunny, with a high near 39. Northwest wind around 14 mph.
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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:
12:54 pm EST Dec 15, 2025
Forecast Valid:
6pm EST Dec 15, 2025-6pm EST Dec 22, 2025
 
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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