Current conditions at

Nantucket, Nantucket Memorial Airport (KACK)

Lat: 41.25°NLon: 70.06°WElev: 46ft.

Fair

27°F

-3°C

Humidity 61%
Wind Speed E 3 mph
Barometer 30.43 in (1030.3 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Last update 18 Mar 8:53 pm EDT
Extended Forecast for

3 Miles NNE Siasconset MA

  • Tonight

    Tonight: Partly cloudy, with a low around 26. Calm wind becoming southeast around 5 mph after midnight.

    Low: 26 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 37. Southeast wind 5 to 7 mph.

    High: 37 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 35. Light and variable wind becoming south around 5 mph after midnight.

    Low: 35 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 43. Southwest wind 7 to 9 mph.

    High: 43 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of rain after 2am.  Mostly cloudy, with a low around 40. South wind 8 to 14 mph.  Chance of precipitation is 30%.

    Low: 40 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday

    Saturday: A chance of rain, mainly before 2pm.  Mostly cloudy, with a high near 45. South wind around 17 mph.  Chance of precipitation is 40%.

    High: 45 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 40. Southwest wind around 14 mph.

    Low: 40 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 45. Southwest wind around 16 mph.

    High: 45 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A chance of rain before 2am, then a chance of rain and snow.  Mostly cloudy, with a low around 35. Breezy, with a northwest wind 16 to 21 mph.  Chance of precipitation is 30%.

    Low: 35 °F

    Breezy.
    Chance Rain
    then Chance
    Rain/Snow

Detailed Forecast

Tonight
Partly cloudy, with a low around 26. Calm wind becoming southeast around 5 mph after midnight.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 37. Southeast wind 5 to 7 mph.
Thursday Night
Partly cloudy, with a low around 35. Light and variable wind becoming south around 5 mph after midnight.
Friday
Mostly sunny, with a high near 43. Southwest wind 7 to 9 mph.
Friday Night
A chance of rain after 2am. Mostly cloudy, with a low around 40. South wind 8 to 14 mph. Chance of precipitation is 30%.
Saturday
A chance of rain, mainly before 2pm. Mostly cloudy, with a high near 45. South wind around 17 mph. Chance of precipitation is 40%.
Saturday Night
Mostly cloudy, with a low around 40. Southwest wind around 14 mph.
Sunday
Mostly cloudy, with a high near 45. Southwest wind around 16 mph.
Sunday Night
A chance of rain before 2am, then a chance of rain and snow. Mostly cloudy, with a low around 35. Breezy, with a northwest wind 16 to 21 mph. Chance of precipitation is 30%.
Monday
A chance of snow before 7am. Mostly sunny, with a high near 41. Breezy, with a north wind 18 to 23 mph. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 32. Breezy, with a north wind 18 to 22 mph.
Tuesday
Mostly sunny, with a high near 38. North wind 13 to 15 mph.
Tuesday Night
Mostly cloudy, with a low around 34. West wind 13 to 16 mph.
Wednesday
Partly sunny, with a high near 42. West wind 14 to 16 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Siasconset MA
 41.33°N 69.98°W (Elev. 0 ft)
6:12 pm EDT Mar 18, 2026
8pm EDT Mar 18, 2026-6pm EDT Mar 25, 2026
 
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Additional Resources

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Hourly Weather Forecast

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