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

37°F

3°C

Humidity 70%
Wind Speed SW 20 mph
Barometer 30.36 in (1028.1 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 24 Mar 10:53 pm EDT
Extended Forecast for

2 Miles ENE Siasconset MA

  • Tonight

    Tonight: Mostly cloudy, with a low around 35. Southwest wind 10 to 13 mph.

    Low: 35 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 44. West wind around 10 mph.

    High: 44 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 39. South wind around 9 mph.

    Low: 39 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 53. Southwest wind 11 to 17 mph.

    High: 53 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A chance of rain, mainly after 2am. Cloudy, with a low around 40. Southwest wind around 18 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.

    Low: 40 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday

    Friday: Rain likely, mainly before 1pm. Mostly cloudy, with a high near 48. Southwest wind around 15 mph becoming north in the afternoon. Chance of precipitation is 60%.

    High: 48 °F

    Rain Likely

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 28. North wind 10 to 14 mph.

    Low: 28 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 36. North wind 8 to 11 mph.

    High: 36 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 30. West wind 5 to 10 mph.

    Low: 30 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 35. Southwest wind 10 to 13 mph.
Wednesday
Mostly sunny, with a high near 44. West wind around 10 mph.
Wednesday Night
Mostly cloudy, with a low around 39. South wind around 9 mph.
Thursday
Mostly cloudy, with a high near 53. Southwest wind 11 to 17 mph.
Thursday Night
A chance of rain, mainly after 2am. Cloudy, with a low around 40. Southwest wind around 18 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.
Friday
Rain likely, mainly before 1pm. Mostly cloudy, with a high near 48. Southwest wind around 15 mph becoming north in the afternoon. Chance of precipitation is 60%.
Friday Night
Mostly cloudy, with a low around 28. North wind 10 to 14 mph.
Saturday
Partly sunny, with a high near 36. North wind 8 to 11 mph.
Saturday Night
Mostly clear, with a low around 30. West wind 5 to 10 mph.
Sunday
Sunny, with a high near 42. West wind 11 to 13 mph.
Sunday Night
Partly cloudy, with a low around 36. Southwest wind around 10 mph.
Monday
Partly sunny, with a high near 46. Southwest wind 13 to 17 mph.
Monday Night
Mostly cloudy, with a low around 36. Southwest wind around 16 mph.
Tuesday
Mostly sunny, with a high near 44. West wind 14 to 16 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Siasconset MA
 41.28°N 69.97°W (Elev. 56 ft)
Last Update:
3:30 pm EDT Mar 24, 2026
Forecast Valid:
11pm EDT Mar 24, 2026-6pm EDT Mar 31, 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