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

65°F

18°C

Humidity 87%
Wind Speed SE 10 mph
Barometer 30.10 in (1019.2 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 13 Jul 6:53 pm EDT
Extended Forecast for

Nantucket MA

  • Tonight

    Tonight: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 64. Southeast wind 3 to 7 mph.

    Low: 64 °F

    Patchy Fog

  • Monday

    Monday: Partly sunny, with a high near 78. East wind 5 to 7 mph becoming south in the afternoon.

    High: 78 °F

    Partly Sunny

  • Monday Night

    Monday Night: Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 68. Southwest wind around 6 mph.

    Low: 68 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: A slight chance of showers between 11am and noon. Partly sunny, with a high near 80. Southwest wind 8 to 10 mph. Chance of precipitation is 20%.

    High: 80 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 70. Southwest wind around 7 mph.

    Low: 70 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 81. Southwest wind 7 to 10 mph.

    High: 81 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 70. Southwest wind around 9 mph.

    Low: 70 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 81. Southwest wind 10 to 14 mph.

    High: 81 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 70. Southwest wind around 10 mph.

    Low: 70 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 64. Southeast wind 3 to 7 mph.
Monday
Partly sunny, with a high near 78. East wind 5 to 7 mph becoming south in the afternoon.
Monday Night
Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 68. Southwest wind around 6 mph.
Tuesday
A slight chance of showers between 11am and noon. Partly sunny, with a high near 80. Southwest wind 8 to 10 mph. Chance of precipitation is 20%.
Tuesday Night
Mostly cloudy, with a low around 70. Southwest wind around 7 mph.
Wednesday
Mostly sunny, with a high near 81. Southwest wind 7 to 10 mph.
Wednesday Night
Mostly cloudy, with a low around 70. Southwest wind around 9 mph.
Thursday
Partly sunny, with a high near 81. Southwest wind 10 to 14 mph.
Thursday Night
Mostly cloudy, with a low around 70. Southwest wind around 10 mph.
Friday
Mostly sunny, with a high near 82. Southwest wind 10 to 13 mph.
Friday Night
A chance of showers. Mostly cloudy, with a low around 69. West wind 8 to 10 mph. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 81. North wind 9 to 11 mph.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 67. South wind around 7 mph becoming west after midnight. Chance of precipitation is 30%.
Sunday
Partly sunny, with a high near 79. North wind 8 to 10 mph becoming southeast in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Nantucket MA
 41.28°N 70.12°W (Elev. 49 ft)
Last Update:
6:05 pm EDT Jul 13, 2025
Forecast Valid:
7pm EDT Jul 13, 2025-6pm EDT Jul 20, 2025
 
Forecast Discussion
 
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Additional Resources

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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