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.

Overcast

36°F

2°C

Humidity 89%
Wind Speed N 20 G 28 mph
Barometer 29.98 in (1015.1 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 23 Mar 8:53 pm EDT
Extended Forecast for

2 Miles ENE Siasconset MA

  • Tonight

    Tonight: Mostly cloudy, with a low around 33. North wind 13 to 15 mph.

    Low: 33 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 40. North wind 7 to 13 mph.

    High: 40 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 34. Southwest wind 7 to 13 mph.

    Low: 34 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 45. Southwest wind 8 to 11 mph.

    High: 45 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain after 2am. Cloudy, with a low around 40. South wind around 11 mph. Chance of precipitation is 20%.

    Low: 40 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Thursday

    Thursday: Mostly cloudy, with a high near 49. Southwest wind 13 to 15 mph.

    High: 49 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A chance of rain after 1am. Mostly cloudy, with a low around 40. Southwest wind 16 to 18 mph. Chance of precipitation is 40%.

    Low: 40 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday

    Friday: A chance of rain. Mostly cloudy, with a high near 48. Southwest wind around 16 mph becoming north in the afternoon. Chance of precipitation is 50%.

    High: 48 °F

    Chance Rain

  • Friday Night

    Friday Night: A chance of rain before 11pm, then a chance of rain and snow between 11pm and 2am, then a chance of snow after 2am. Mostly cloudy, with a low around 27. North wind around 14 mph. Chance of precipitation is 30%.

    Low: 27 °F

    Chance
    Rain/Snow

Detailed Forecast

Tonight
Mostly cloudy, with a low around 33. North wind 13 to 15 mph.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 40. North wind 7 to 13 mph.
Tuesday Night
Increasing clouds, with a low around 34. Southwest wind 7 to 13 mph.
Wednesday
Mostly sunny, with a high near 45. Southwest wind 8 to 11 mph.
Wednesday Night
A slight chance of rain after 2am. Cloudy, with a low around 40. South wind around 11 mph. Chance of precipitation is 20%.
Thursday
Mostly cloudy, with a high near 49. Southwest wind 13 to 15 mph.
Thursday Night
A chance of rain after 1am. Mostly cloudy, with a low around 40. Southwest wind 16 to 18 mph. Chance of precipitation is 40%.
Friday
A chance of rain. Mostly cloudy, with a high near 48. Southwest wind around 16 mph becoming north in the afternoon. Chance of precipitation is 50%.
Friday Night
A chance of rain before 11pm, then a chance of rain and snow between 11pm and 2am, then a chance of snow after 2am. Mostly cloudy, with a low around 27. North wind around 14 mph. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 36. North wind 9 to 11 mph.
Saturday Night
Partly cloudy, with a low around 29. West wind around 9 mph.
Sunday
Sunny, with a high near 42. West wind 11 to 13 mph.
Sunday Night
Mostly cloudy, with a low around 36. Southwest wind around 11 mph.
Monday
Mostly sunny, with a high near 45. West wind 10 to 14 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:
9:11 pm EDT Mar 23, 2026
Forecast Valid:
9pm EDT Mar 23, 2026-6pm EDT Mar 30, 2026
 
Forecast Discussion
 
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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