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

27°F

-3°C

Humidity 66%
Wind Speed Calm
Barometer 30.41 in (1029.7 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Last update 19 Mar 12:53 am EDT
Extended Forecast for

Nantucket Memorial Airport MA

  • Overnight

    Overnight: Partly cloudy, with a low around 25. Light southeast wind.

    Low: 25 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 38. Southeast wind 6 to 8 mph.

    High: 38 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 31. Light and variable wind becoming south around 5 mph after midnight.

    Low: 31 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 44. Southwest wind 7 to 10 mph.

    High: 44 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of rain after 2am. Mostly cloudy, with a low around 38. South wind 9 to 11 mph. Chance of precipitation is 30%.

    Low: 38 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday

    Saturday: A chance of rain, mainly before 2pm. Mostly cloudy, with a high near 46. South wind 14 to 17 mph. Chance of precipitation is 40%.

    High: 46 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 37. Southwest wind 10 to 13 mph.

    Low: 37 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 47. Southwest wind 13 to 17 mph.

    High: 47 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A chance of rain before 5am, then a chance of rain and snow. Mostly cloudy, with a low around 33. Northwest wind 14 to 17 mph. Chance of precipitation is 30%.

    Low: 33 °F

    Chance Rain
    then Chance
    Rain/Snow

Detailed Forecast

Overnight
Partly cloudy, with a low around 25. Light southeast wind.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 38. Southeast wind 6 to 8 mph.
Thursday Night
Partly cloudy, with a low around 31. Light and variable wind becoming south around 5 mph after midnight.
Friday
Mostly sunny, with a high near 44. Southwest wind 7 to 10 mph.
Friday Night
A chance of rain after 2am. Mostly cloudy, with a low around 38. South wind 9 to 11 mph. Chance of precipitation is 30%.
Saturday
A chance of rain, mainly before 2pm. Mostly cloudy, with a high near 46. South wind 14 to 17 mph. Chance of precipitation is 40%.
Saturday Night
Mostly cloudy, with a low around 37. Southwest wind 10 to 13 mph.
Sunday
Mostly cloudy, with a high near 47. Southwest wind 13 to 17 mph.
Sunday Night
A chance of rain before 5am, then a chance of rain and snow. Mostly cloudy, with a low around 33. Northwest wind 14 to 17 mph. Chance of precipitation is 30%.
Monday
A chance of snow before 7am. Mostly sunny, with a high near 40. Breezy, with a north wind 17 to 20 mph. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 29. North wind 14 to 16 mph.
Tuesday
Mostly sunny, with a high near 40. Northeast wind around 14 mph.
Tuesday Night
Mostly cloudy, with a low around 32. West wind 11 to 14 mph.
Wednesday
Partly sunny, with a high near 43. West wind 13 to 15 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Nantucket Memorial Airport MA
 41.25°N 70.06°W (Elev. 0 ft)
Last Update:
6:12 pm EDT Mar 18, 2026
Forecast Valid:
1am EDT Mar 19, 2026-6pm EDT Mar 25, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation