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

63°F

17°C

Humidity 78%
Wind Speed Calm
Barometer 30.17 in (1021.5 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 29 Sep 6:53 pm EDT
Extended Forecast for

6 Miles N Siasconset MA

  • Tonight

    Tonight: Mostly cloudy, with a low around 66. Light and variable wind becoming west around 6 mph after midnight.

    Low: 66 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 70. Northwest wind 6 to 16 mph becoming northeast in the afternoon.

    High: 70 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 58. Windy, with a northeast wind 21 to 26 mph.

    Low: 58 °F

    Partly Cloudy
    and Windy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 62. Windy, with a northeast wind 28 to 30 mph.

    High: 62 °F

    Mostly Sunny
    and Windy

  • Wednesday Night

    Wednesday Night: A slight chance of showers after 3am. Partly cloudy, with a low around 55. Windy, with a northeast wind around 29 mph. Chance of precipitation is 20%.

    Low: 55 °F

    Windy. Partly
    Cloudy then
    Slight Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 60. Windy, with a northeast wind 21 to 26 mph.

    High: 60 °F

    Mostly Sunny
    and Windy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53. Northeast wind 9 to 15 mph.

    Low: 53 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 64. North wind around 10 mph becoming west in the afternoon.

    High: 64 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 61. West wind around 11 mph.

    Low: 61 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 66. Light and variable wind becoming west around 6 mph after midnight.
Tuesday
Partly sunny, with a high near 70. Northwest wind 6 to 16 mph becoming northeast in the afternoon.
Tuesday Night
Partly cloudy, with a low around 58. Windy, with a northeast wind 21 to 26 mph.
Wednesday
Mostly sunny, with a high near 62. Windy, with a northeast wind 28 to 30 mph.
Wednesday Night
A slight chance of showers after 3am. Partly cloudy, with a low around 55. Windy, with a northeast wind around 29 mph. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 60. Windy, with a northeast wind 21 to 26 mph.
Thursday Night
Mostly clear, with a low around 53. Northeast wind 9 to 15 mph.
Friday
Sunny, with a high near 64. North wind around 10 mph becoming west in the afternoon.
Friday Night
Mostly clear, with a low around 61. West wind around 11 mph.
Saturday
Sunny, with a high near 66. West wind 10 to 13 mph.
Saturday Night
Mostly clear, with a low around 63. Southwest wind around 11 mph.
Sunday
Sunny, with a high near 67. Southwest wind 11 to 13 mph.
Sunday Night
Mostly clear, with a low around 63. Southwest wind around 11 mph.
Monday
Sunny, with a high near 67. West wind around 11 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:
12:32 pm EDT Sep 29, 2025
Forecast Valid:
6pm EDT Sep 29, 2025-6pm EDT Oct 6, 2025
 
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Additional Resources

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