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

44°F

7°C

Humidity 89%
Wind Speed S 17 mph
Barometer 30.31 in (1026.4 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 30 Mar 5:53 am EDT
Extended Forecast for

3 Miles NNE Siasconset MA

  • Today

    Today: Mostly cloudy, with a high near 49. Windy, with a southwest wind 18 to 26 mph, with gusts as high as 36 mph.

    High: 49 °F

    Mostly Cloudy
    and Windy

  • Tonight

    Tonight: A chance of rain, mainly after 1am. Mostly cloudy, with a low around 45. Breezy, with a southwest wind 18 to 24 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 45 °F

    Chance Rain
    and Breezy

  • Tuesday

    Tuesday: Rain likely, mainly before 1pm. Cloudy, with a high near 49. Breezy, with a southwest wind 16 to 20 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 49 °F

    Rain Likely
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 47. Windy, with a southwest wind 20 to 28 mph.

    Low: 47 °F

    Mostly Cloudy
    and Windy

  • Wednesday

    Wednesday: A chance of rain, mainly after 4pm. Partly sunny, with a high near 50. Windy, with a southwest wind 24 to 28 mph. Chance of precipitation is 30%.

    High: 50 °F

    Windy. Partly
    Sunny then
    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly between 9pm and 2am. Cloudy, with a low around 40. Southwest wind around 15 mph becoming northeast after midnight. Chance of precipitation is 60%.

    Low: 40 °F

    Rain Likely

  • Thursday

    Thursday: A chance of rain. Cloudy, with a high near 43. Northeast wind around 18 mph. Chance of precipitation is 50%.

    High: 43 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A chance of rain. Cloudy, with a low around 41. East wind 13 to 15 mph. Chance of precipitation is 40%.

    Low: 41 °F

    Chance Rain

  • Friday

    Friday: A chance of rain before 1pm. Mostly cloudy, with a high near 49. Southwest wind around 15 mph. Chance of precipitation is 30%.

    High: 49 °F

    Chance Rain

Detailed Forecast

Today
Mostly cloudy, with a high near 49. Windy, with a southwest wind 18 to 26 mph, with gusts as high as 36 mph.
Tonight
A chance of rain, mainly after 1am. Mostly cloudy, with a low around 45. Breezy, with a southwest wind 18 to 24 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Rain likely, mainly before 1pm. Cloudy, with a high near 49. Breezy, with a southwest wind 16 to 20 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Mostly cloudy, with a low around 47. Windy, with a southwest wind 20 to 28 mph.
Wednesday
A chance of rain, mainly after 4pm. Partly sunny, with a high near 50. Windy, with a southwest wind 24 to 28 mph. Chance of precipitation is 30%.
Wednesday Night
Rain likely, mainly between 9pm and 2am. Cloudy, with a low around 40. Southwest wind around 15 mph becoming northeast after midnight. Chance of precipitation is 60%.
Thursday
A chance of rain. Cloudy, with a high near 43. Northeast wind around 18 mph. Chance of precipitation is 50%.
Thursday Night
A chance of rain. Cloudy, with a low around 41. East wind 13 to 15 mph. Chance of precipitation is 40%.
Friday
A chance of rain before 1pm. Mostly cloudy, with a high near 49. Southwest wind around 15 mph. Chance of precipitation is 30%.
Friday Night
A chance of rain. Mostly cloudy, with a low around 43. Southwest wind 16 to 18 mph. Chance of precipitation is 40%.
Saturday
A chance of rain. Mostly cloudy, with a high near 47. Northeast wind around 16 mph. Chance of precipitation is 30%.
Saturday Night
Cloudy, with a low around 42. East wind around 16 mph.
Sunday
A chance of rain. Cloudy, with a high near 51. South wind around 17 mph. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Siasconset MA
 41.33°N 69.98°W (Elev. 0 ft)
Last Update:
2:36 am EDT Mar 30, 2026
Forecast Valid:
6am EDT Mar 30, 2026-6pm EDT Apr 5, 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