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

29°F

-2°C

Humidity 78%
Wind Speed NE 5 mph
Barometer 30.63 in (1037.1 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 8 Apr 8:53 pm EDT
Extended Forecast for

3 Miles NNE Siasconset MA

  • Tonight

    Tonight: Clear, with a steady temperature around 37. East wind around 6 mph.

    Low: 37 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 44. East wind 9 to 11 mph.

    High: 44 °F

    Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 4am. Otherwise, partly cloudy, with a low around 41. Southeast wind 8 to 13 mph becoming light south after midnight.

    Low: 41 °F

    Partly Cloudy
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 9am. Otherwise, sunny, with a high near 47. Light southwest wind increasing to 6 to 11 mph in the morning.

    High: 47 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 44. Southwest wind 11 to 14 mph.

    Low: 44 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 49. West wind 9 to 13 mph becoming north in the afternoon.

    High: 49 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 42. North wind 5 to 8 mph.

    Low: 42 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 46. North wind around 5 mph becoming light and variable.

    High: 46 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 44. South wind 7 to 14 mph.

    Low: 44 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Clear, with a steady temperature around 37. East wind around 6 mph.
Thursday
Sunny, with a high near 44. East wind 9 to 11 mph.
Thursday Night
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 41. Southeast wind 8 to 13 mph becoming light south after midnight.
Friday
Patchy fog before 9am. Otherwise, sunny, with a high near 47. Light southwest wind increasing to 6 to 11 mph in the morning.
Friday Night
Mostly cloudy, with a low around 44. Southwest wind 11 to 14 mph.
Saturday
Mostly sunny, with a high near 49. West wind 9 to 13 mph becoming north in the afternoon.
Saturday Night
Mostly clear, with a low around 42. North wind 5 to 8 mph.
Sunday
Sunny, with a high near 46. North wind around 5 mph becoming light and variable.
Sunday Night
Mostly cloudy, with a low around 44. South wind 7 to 14 mph.
Monday
Mostly cloudy, with a high near 52. Breezy, with a south wind 17 to 22 mph.
Monday Night
Mostly cloudy, with a low around 49. Breezy, with a southwest wind 22 to 24 mph.
Tuesday
Partly sunny, with a high near 53. Breezy, with a southwest wind 18 to 20 mph.
Tuesday Night
Mostly cloudy, with a low around 50. Breezy, with a southwest wind 16 to 20 mph.
Wednesday
Partly sunny, with a high near 54. Southwest wind 15 to 17 mph.
Basemap Options
Click map to change the forecast location
Loading map...
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:
8:34 pm EDT Apr 8, 2026
Forecast Valid:
9pm EDT Apr 8, 2026-6pm EDT Apr 15, 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