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.

Mostly Cloudy

37°F

3°C

Humidity 73%
Wind Speed N 18 G 28 mph
Barometer 30.27 in (1025.1 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 24 Mar 8:53 am EDT
Extended Forecast for

3 Miles NNE Siasconset MA

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 39. North wind 8 to 15 mph.

    High: 39 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 36. Southwest wind 6 to 16 mph.

    Low: 36 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Increasing clouds, with a high near 45. Southwest wind around 11 mph.

    High: 45 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Cloudy, with a low around 42. South wind around 10 mph.

    Low: 42 °F

    Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 49. Breezy, with a southwest wind 13 to 21 mph.

    High: 49 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Thursday Night

    Thursday Night: Rain likely, mainly after 4am. Cloudy, with a low around 41. Breezy, with a southwest wind 22 to 25 mph. Chance of precipitation is 60%.

    Low: 41 °F

    Breezy.
    Mostly Cloudy
    then Rain
    Likely

  • Friday

    Friday: Rain likely, mainly before 8am. Mostly cloudy, with a high near 46. Breezy, with a west wind 17 to 21 mph becoming north in the afternoon. Chance of precipitation is 60%.

    High: 46 °F

    Rain Likely
    and Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 28. North wind 14 to 18 mph.

    Low: 28 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 36. North wind 7 to 14 mph.

    High: 36 °F

    Partly Sunny

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 39. North wind 8 to 15 mph.
Tonight
Partly cloudy, with a low around 36. Southwest wind 6 to 16 mph.
Wednesday
Increasing clouds, with a high near 45. Southwest wind around 11 mph.
Wednesday Night
Cloudy, with a low around 42. South wind around 10 mph.
Thursday
Mostly cloudy, with a high near 49. Breezy, with a southwest wind 13 to 21 mph.
Thursday Night
Rain likely, mainly after 4am. Cloudy, with a low around 41. Breezy, with a southwest wind 22 to 25 mph. Chance of precipitation is 60%.
Friday
Rain likely, mainly before 8am. Mostly cloudy, with a high near 46. Breezy, with a west wind 17 to 21 mph becoming north in the afternoon. Chance of precipitation is 60%.
Friday Night
Mostly cloudy, with a low around 28. North wind 14 to 18 mph.
Saturday
Partly sunny, with a high near 36. North wind 7 to 14 mph.
Saturday Night
Mostly clear, with a low around 31. West wind 6 to 13 mph.
Sunday
Sunny, with a high near 42. West wind around 15 mph.
Sunday Night
Partly cloudy, with a low around 38. Southwest wind around 16 mph.
Monday
Mostly sunny, with a high near 46. West wind around 15 mph.
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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:
3:11 am EDT Mar 24, 2026
Forecast Valid:
9am EDT Mar 24, 2026-6pm EDT Mar 30, 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