National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Nantucket, Nantucket Memorial Airport (KACK)

Lat: 41.25°NLon: 70.06°WElev: 46ft.

Partly Cloudy and Breezy

58°F

14°C

Humidity 62%
Wind Speed NE 23 G 36 mph
Barometer 30.15 in (1021.1 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 1 Oct 5:53 pm EDT
Extended Forecast for

3 Miles NNW Siasconset MA

High Surf Advisory October 1, 06:55pm until October 1, 08:00pm
Click here for hazard details and duration
...
  •  
    High Surf Advisory October 1, 06:55pm until October 1, 08:00pm

    NOW until 8:00pm Wed

    High Surf Advisory

  • Tonight

    Low: 56 °F

    Partly Cloudy
    and Breezy

  • Thursday

    Thursday: Mostly sunny, with a high near 62. Breezy, with a northeast wind 14 to 20 mph.

    High: 62 °F

    Mostly Sunny
    and Breezy
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 55. Northeast wind 5 to 8 mph becoming calm after midnight.

    Low: 55 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 66. Light west wind becoming southwest 5 to 10 mph in the morning.

    High: 66 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 59. West wind around 10 mph.

    Low: 59 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 70. West wind around 10 mph.

    High: 70 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 62. Southwest wind around 7 mph.

    Low: 62 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 69. Southwest wind 6 to 9 mph.

    High: 69 °F

    Sunny

Detailed Forecast

Tonight
Partly cloudy, with a low around 56. Breezy, with a northeast wind 22 to 24 mph.
Thursday
Mostly sunny, with a high near 62. Breezy, with a northeast wind 14 to 20 mph.
Thursday Night
Mostly clear, with a low around 55. Northeast wind 5 to 8 mph becoming calm after midnight.
Friday
Sunny, with a high near 66. Light west wind becoming southwest 5 to 10 mph in the morning.
Friday Night
Mostly clear, with a low around 59. West wind around 10 mph.
Saturday
Sunny, with a high near 70. West wind around 10 mph.
Saturday Night
Mostly clear, with a low around 62. Southwest wind around 7 mph.
Sunday
Sunny, with a high near 69. Southwest wind 6 to 9 mph.
Sunday Night
Mostly clear, with a low around 62. Southwest wind around 7 mph.
Monday
Sunny, with a high near 70. Southwest wind 8 to 10 mph.
Monday Night
Mostly clear, with a low around 62. Southwest wind around 10 mph.
Tuesday
Mostly sunny, with a high near 70. Southwest wind 10 to 13 mph.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 61. Southwest wind around 11 mph. Chance of precipitation is 30%.
Wednesday
A chance of showers. Partly sunny, with a high near 69. Southwest wind 13 to 15 mph. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Siasconset MA
 41.31°N 70.02°W (Elev. 13 ft)
Last Update:
2:36 pm EDT Oct 1, 2025
Forecast Valid:
6pm EDT Oct 1, 2025-6pm EDT Oct 8, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation