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

49°F

9°C

Humidity 97%
Wind Speed SW 14 mph
Barometer 30.26 in (1024.5 mb)
Dewpoint 48°F (9°C)
Visibility 0.25 mi
Wind Chill44°F (7°C)
Last update 3 Apr 11:53 am EDT
Extended Forecast for

3 Miles NNE Siasconset MA

  • This Afternoon

    This Afternoon: Patchy fog. Otherwise, mostly cloudy, with a high near 51. Southwest wind 11 to 14 mph.

    High: 51 °F

    Patchy Fog

  • Tonight

    Tonight: Patchy fog. Otherwise, mostly cloudy, with a low around 43. Southwest wind 15 to 17 mph.

    Low: 43 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 10am. Otherwise, partly sunny, with a high near 49. West wind 9 to 14 mph becoming northeast in the afternoon.

    High: 49 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Saturday Night

    Saturday Night: A slight chance of showers after 9pm. Cloudy, with a low around 40. East wind 11 to 13 mph. Chance of precipitation is 20%.

    Low: 40 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: Showers, mainly after 3pm. High near 53. Breezy, with a southwest wind 17 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 80%.

    High: 53 °F

    Breezy.
    Slight Chance
    Showers then
    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly before 8pm. Mostly cloudy, with a low around 40. Southwest wind 10 to 16 mph becoming west after midnight. Chance of precipitation is 60%.

    Low: 40 °F

    Showers
    Likely

  • Monday

    Monday: Mostly sunny, with a high near 47. West wind 11 to 15 mph.

    High: 47 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 38. West wind 8 to 14 mph.

    Low: 38 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of rain showers after 4pm, mixing with snow after 5pm. Mostly sunny, with a high near 45. West wind around 8 mph. Chance of precipitation is 30%.

    High: 45 °F

    Mostly Sunny
    then Chance
    Rain/Snow

Detailed Forecast

This Afternoon
Patchy fog. Otherwise, mostly cloudy, with a high near 51. Southwest wind 11 to 14 mph.
Tonight
Patchy fog. Otherwise, mostly cloudy, with a low around 43. Southwest wind 15 to 17 mph.
Saturday
Patchy fog before 10am. Otherwise, partly sunny, with a high near 49. West wind 9 to 14 mph becoming northeast in the afternoon.
Saturday Night
A slight chance of showers after 9pm. Cloudy, with a low around 40. East wind 11 to 13 mph. Chance of precipitation is 20%.
Sunday
Showers, mainly after 3pm. High near 53. Breezy, with a southwest wind 17 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 80%.
Sunday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 40. Southwest wind 10 to 16 mph becoming west after midnight. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 47. West wind 11 to 15 mph.
Monday Night
Partly cloudy, with a low around 38. West wind 8 to 14 mph.
Tuesday
A chance of rain showers after 4pm, mixing with snow after 5pm. Mostly sunny, with a high near 45. West wind around 8 mph. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 34. North wind 8 to 16 mph.
Wednesday
Sunny, with a high near 41. North wind 8 to 15 mph.
Wednesday Night
Mostly clear, with a low around 36. Southeast wind 7 to 9 mph.
Thursday
Sunny, with a high near 49. South wind 10 to 15 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Siasconset MA
 41.31°N 69.99°W (Elev. 49 ft)
Last Update:
7:01 am EDT Apr 3, 2026
Forecast Valid:
12pm EDT Apr 3, 2026-6pm EDT Apr 9, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation