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

64°F

18°C

Humidity 65%
Wind Speed SW 18 mph
Barometer NA
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 3 Oct 3:53 pm EDT
Extended Forecast for

2 Miles NW Siasconset MA

  • Tonight

    Tonight: Clear, with a low around 59. West wind 10 to 13 mph.

    Low: 59 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 71. West wind around 9 mph.

    High: 71 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 60. Southwest wind 3 to 6 mph.

    Low: 60 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 73. South wind 5 to 8 mph.

    High: 73 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 61. South wind around 7 mph.

    Low: 61 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 72. Southwest wind 6 to 11 mph.

    High: 72 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 61. Southwest wind around 9 mph.

    Low: 61 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 71. Southwest wind 9 to 14 mph.

    High: 71 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers after 2am. Mostly cloudy, with a low around 60. Southwest wind 11 to 13 mph. Chance of precipitation is 30%.

    Low: 60 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
Clear, with a low around 59. West wind 10 to 13 mph.
Saturday
Sunny, with a high near 71. West wind around 9 mph.
Saturday Night
Mostly clear, with a low around 60. Southwest wind 3 to 6 mph.
Sunday
Sunny, with a high near 73. South wind 5 to 8 mph.
Sunday Night
Mostly clear, with a low around 61. South wind around 7 mph.
Monday
Sunny, with a high near 72. Southwest wind 6 to 11 mph.
Monday Night
Mostly clear, with a low around 61. Southwest wind around 9 mph.
Tuesday
Sunny, with a high near 71. Southwest wind 9 to 14 mph.
Tuesday Night
A chance of showers after 2am. Mostly cloudy, with a low around 60. Southwest wind 11 to 13 mph. Chance of precipitation is 30%.
Wednesday
Showers, mainly after 8am. High near 70. Southwest wind around 14 mph. Chance of precipitation is 80%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 52. North wind 10 to 14 mph. Chance of precipitation is 60%.
Thursday
Mostly sunny, with a high near 61. North wind 14 to 16 mph.
Thursday Night
Partly cloudy, with a low around 51. Northeast wind 8 to 10 mph.
Friday
Sunny, with a high near 64. Northeast wind around 9 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Siasconset MA
 41.29°N 70.02°W (Elev. 33 ft)
Last Update:
2:25 pm EDT Oct 3, 2025
Forecast Valid:
4pm EDT Oct 3, 2025-6pm EDT Oct 10, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation