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

56°F

13°C

Humidity 70%
Wind Speed SE 18 mph
Barometer 30.06 in (1017.8 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 16 Oct 5:53 am EDT
Extended Forecast for

6 Miles N Siasconset MA

  • Today

    Today: Showers, mainly after noon. Patchy fog after noon. High near 67. Breezy, with a south wind 14 to 20 mph, with gusts as high as 36 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 67 °F

    Chance
    Showers then
    Showers and
    Patchy Fog

  • Tonight

    Tonight: A chance of showers after 1am. Patchy fog before 2am. Otherwise, cloudy, with a low around 51. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 51 °F

    Chance
    Showers and
    Patchy Fog

  • Saturday

    Saturday: Showers likely, mainly before noon. Patchy fog between 10am and noon. Otherwise, mostly cloudy, with a temperature falling to around 50 by 4pm. Windy, with a north wind 23 to 29 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 53 °F⇓

    Showers
    Likely and
    Patchy Fog

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 43. Windy, with a north wind 23 to 28 mph.

    Low: 43 °F

    Partly Cloudy
    and Windy

  • Sunday

    Sunday: Sunny, with a high near 54. Breezy, with a northeast wind 14 to 21 mph.

    High: 54 °F

    Sunny and
    Breezy then
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 52. East wind 13 to 16 mph.

    Low: 52 °F

    Mostly Clear

  • Monday

    Monday: A chance of showers after 11am. Mostly sunny, with a high near 57. Breezy, with an east wind around 21 mph. Chance of precipitation is 30%.

    High: 57 °F

    Chance
    Showers and
    Breezy

  • Monday Night

    Monday Night: A chance of showers. Mostly cloudy, with a low around 56. Breezy, with a northeast wind 20 to 22 mph. Chance of precipitation is 40%.

    Low: 56 °F

    Chance
    Showers and
    Breezy

  • Tuesday

    Tuesday: A chance of showers before 9am. Partly sunny, with a high near 58. Breezy, with a northeast wind around 23 mph. Chance of precipitation is 30%.

    High: 58 °F

    Breezy.
    Chance
    Showers then
    Partly Sunny

Detailed Forecast

Today
Showers, mainly after noon. Patchy fog after noon. High near 67. Breezy, with a south wind 14 to 20 mph, with gusts as high as 36 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
A chance of showers after 1am. Patchy fog before 2am. Otherwise, cloudy, with a low around 51. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Showers likely, mainly before noon. Patchy fog between 10am and noon. Otherwise, mostly cloudy, with a temperature falling to around 50 by 4pm. Windy, with a north wind 23 to 29 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Partly cloudy, with a low around 43. Windy, with a north wind 23 to 28 mph.
Sunday
Sunny, with a high near 54. Breezy, with a northeast wind 14 to 21 mph.
Sunday Night
Mostly clear, with a low around 52. East wind 13 to 16 mph.
Monday
A chance of showers after 11am. Mostly sunny, with a high near 57. Breezy, with an east wind around 21 mph. Chance of precipitation is 30%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 56. Breezy, with a northeast wind 20 to 22 mph. Chance of precipitation is 40%.
Tuesday
A chance of showers before 9am. Partly sunny, with a high near 58. Breezy, with a northeast wind around 23 mph. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 56. Breezy, with a northeast wind 21 to 23 mph.
Wednesday
Mostly sunny, with a high near 57. Windy, with a northeast wind 25 to 28 mph.
Wednesday Night
Partly cloudy, with a low around 54. Windy, with a northeast wind around 26 mph.
Thursday
Mostly sunny, with a high near 57. Windy, with a northeast wind 21 to 26 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles N Siasconset MA
 41.35°N 70.01°W (Elev. 0 ft)
Last Update:
5:13 am EDT Oct 16, 2026
Forecast Valid:
6am EDT Oct 16, 2026-6pm EDT Oct 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation