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.

Light Rain

70°F

21°C

Humidity 97%
Wind Speed SW 7 mph
Barometer 30.11 in (1019.5 mb)
Dewpoint 69°F (21°C)
Visibility 7.00 mi
Last update 15 Jul 7:53 am EDT
Extended Forecast for

Nantucket MA

  • Today

    Today: A slight chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and noon. Patchy fog between noon and 1pm. Otherwise, partly sunny, with a high near 80. Southwest wind 7 to 10 mph. Chance of precipitation is 20%.

    High: 80 °F

    Slight Chance
    T-storms and
    Patchy Fog
    then Patchy
    Fog

  • Tonight

    Tonight: Patchy fog. Otherwise, mostly cloudy, with a low around 69. Southwest wind 6 to 8 mph.

    Low: 69 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 10am. Otherwise, partly sunny, with a high near 81. Southwest wind 7 to 10 mph.

    High: 81 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers between 3am and 5am, then a slight chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 70. Southwest wind around 9 mph. Chance of precipitation is 20%.

    Low: 70 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: A slight chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and 3pm. Partly sunny, with a high near 81. Southwest wind 11 to 15 mph. Chance of precipitation is 20%.

    High: 81 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: A slight chance of showers between 11pm and midnight. Partly cloudy, with a low around 70. Southwest wind 11 to 13 mph. Chance of precipitation is 20%.

    Low: 70 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 83. West wind around 11 mph.

    High: 83 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 67. North wind around 6 mph.

    Low: 67 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 78. Northeast wind around 9 mph.

    High: 78 °F

    Sunny

Detailed Forecast

Today
A slight chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and noon. Patchy fog between noon and 1pm. Otherwise, partly sunny, with a high near 80. Southwest wind 7 to 10 mph. Chance of precipitation is 20%.
Tonight
Patchy fog. Otherwise, mostly cloudy, with a low around 69. Southwest wind 6 to 8 mph.
Wednesday
Patchy fog before 10am. Otherwise, partly sunny, with a high near 81. Southwest wind 7 to 10 mph.
Wednesday Night
A slight chance of showers between 3am and 5am, then a slight chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 70. Southwest wind around 9 mph. Chance of precipitation is 20%.
Thursday
A slight chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and 3pm. Partly sunny, with a high near 81. Southwest wind 11 to 15 mph. Chance of precipitation is 20%.
Thursday Night
A slight chance of showers between 11pm and midnight. Partly cloudy, with a low around 70. Southwest wind 11 to 13 mph. Chance of precipitation is 20%.
Friday
Mostly sunny, with a high near 83. West wind around 11 mph.
Friday Night
Mostly cloudy, with a low around 67. North wind around 6 mph.
Saturday
Sunny, with a high near 78. Northeast wind around 9 mph.
Saturday Night
Partly cloudy, with a low around 66. East wind around 6 mph becoming light and variable in the evening.
Sunday
Partly sunny, with a high near 80. South wind 6 to 10 mph.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 67. South wind around 8 mph. Chance of precipitation is 40%.
Monday
A chance of showers. Mostly sunny, with a high near 80. West wind around 11 mph becoming south in the afternoon. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Nantucket MA
 41.28°N 70.09°W (Elev. 3 ft)
Last Update:
7:45 am EDT Jul 15, 2025
Forecast Valid:
8am EDT Jul 15, 2025-6pm EDT Jul 21, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation