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

33°F

1°C

Humidity 96%
Wind Speed SW 3 mph
Barometer 30.24 in (1024.1 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 4 Mar 5:53 pm EST
Extended Forecast for

3 Miles NNE Siasconset MA

  • Tonight

    Tonight: Increasing clouds, with a low around 34. Southwest wind around 6 mph.

    Low: 34 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Cloudy, with a high near 38. Light northeast wind becoming east 10 to 15 mph in the morning.

    High: 38 °F

    Cloudy

  • Thursday Night

    Thursday Night: Cloudy, with a low around 37. Breezy, with an east wind 17 to 23 mph.

    Low: 37 °F

    Cloudy and
    Breezy

  • Friday

    Friday: Cloudy, with a high near 39. Breezy, with a northeast wind 21 to 23 mph, with gusts as high as 36 mph.

    High: 39 °F

    Cloudy and
    Breezy

  • Friday Night

    Friday Night: Cloudy, with a low around 37. Northeast wind 5 to 9 mph.

    Low: 37 °F

    Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 46. South wind 5 to 10 mph increasing to 12 to 17 mph in the afternoon.

    High: 46 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Cloudy, with a low around 41. Breezy, with a southwest wind 17 to 22 mph.

    Low: 41 °F

    Cloudy and
    Breezy

  • Sunday

    Sunday: Mostly cloudy, with a high near 44. West wind 7 to 13 mph.

    High: 44 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 39. Southwest wind 8 to 11 mph.

    Low: 39 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 34. Southwest wind around 6 mph.
Thursday
Cloudy, with a high near 38. Light northeast wind becoming east 10 to 15 mph in the morning.
Thursday Night
Cloudy, with a low around 37. Breezy, with an east wind 17 to 23 mph.
Friday
Cloudy, with a high near 39. Breezy, with a northeast wind 21 to 23 mph, with gusts as high as 36 mph.
Friday Night
Cloudy, with a low around 37. Northeast wind 5 to 9 mph.
Saturday
Mostly cloudy, with a high near 46. South wind 5 to 10 mph increasing to 12 to 17 mph in the afternoon.
Saturday Night
Cloudy, with a low around 41. Breezy, with a southwest wind 17 to 22 mph.
Sunday
Mostly cloudy, with a high near 44. West wind 7 to 13 mph.
Sunday Night
Partly cloudy, with a low around 39. Southwest wind 8 to 11 mph.
Monday
Mostly sunny, with a high near 45. Southwest wind 11 to 13 mph.
Monday Night
Partly cloudy, with a low around 40. Southwest wind around 10 mph.
Tuesday
Mostly sunny, with a high near 45. Southwest wind 10 to 14 mph.
Tuesday Night
Mostly cloudy, with a low around 42. Southwest wind 11 to 18 mph.
Wednesday
Mostly cloudy, with a high near 47. Breezy, with a southwest wind 18 to 23 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Siasconset MA
 41.33°N 69.98°W (Elev. 0 ft)
Last Update:
5:55 pm EST Mar 4, 2026
Forecast Valid:
6pm EST Mar 4, 2026-6pm EDT Mar 11, 2026
 
Forecast Discussion
 
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