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.

Fair

76°F

24°C

Humidity 82%
Wind Speed S 12 mph
Barometer 29.96 in (1014.4 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 24 Aug 3:53 pm EDT
Extended Forecast for

2 Miles NNW Siasconset MA

  • Tonight

    Tonight: Isolated showers and thunderstorms between 9pm and 2am. Partly cloudy, with a low around 65. South wind 6 to 9 mph. Chance of precipitation is 20%.

    Low: 65 °F

    Isolated
    T-storms

  • Tuesday

    Tuesday: Sunny, with a high near 74. West wind 8 to 14 mph.

    High: 74 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62. West wind 8 to 11 mph.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 74. Southwest wind 5 to 8 mph.

    High: 74 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 63. Southwest wind around 6 mph.

    Low: 63 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 74. South wind 6 to 10 mph.

    High: 74 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Showers likely, mainly after 4am. Mostly cloudy, with a low around 66. South wind around 9 mph. Chance of precipitation is 60%.

    Low: 66 °F

    Showers
    Likely

  • Friday

    Friday: Showers likely, mainly before 8am. Mostly cloudy, with a high near 76. South wind around 11 mph. Chance of precipitation is 60%.

    High: 76 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 65. Southwest wind around 8 mph.

    Low: 65 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Isolated showers and thunderstorms between 9pm and 2am. Partly cloudy, with a low around 65. South wind 6 to 9 mph. Chance of precipitation is 20%.
Tuesday
Sunny, with a high near 74. West wind 8 to 14 mph.
Tuesday Night
Mostly clear, with a low around 62. West wind 8 to 11 mph.
Wednesday
Sunny, with a high near 74. Southwest wind 5 to 8 mph.
Wednesday Night
Partly cloudy, with a low around 63. Southwest wind around 6 mph.
Thursday
Mostly sunny, with a high near 74. South wind 6 to 10 mph.
Thursday Night
Showers likely, mainly after 4am. Mostly cloudy, with a low around 66. South wind around 9 mph. Chance of precipitation is 60%.
Friday
Showers likely, mainly before 8am. Mostly cloudy, with a high near 76. South wind around 11 mph. Chance of precipitation is 60%.
Friday Night
Mostly cloudy, with a low around 65. Southwest wind around 8 mph.
Saturday
Partly sunny, with a high near 77. North wind around 10 mph.
Saturday Night
Partly cloudy, with a low around 60. Southeast wind around 6 mph becoming light and variable in the evening.
Sunday
Mostly sunny, with a high near 75. Southwest wind 6 to 8 mph.
Sunday Night
Mostly cloudy, with a low around 64. Southwest wind 7 to 9 mph.
Monday
Mostly sunny, with a high near 77. West wind 11 to 14 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Siasconset MA
 41.31°N 70.02°W (Elev. 13 ft)
Last Update:
4:26 pm EDT Aug 24, 2026
Forecast Valid:
4pm EDT Aug 24, 2026-6pm EDT Aug 31, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation