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.

Fog/Mist

69°F

21°C

Humidity 100%
Wind Speed SW 8 mph
Barometer 30.06 in (1018.0 mb)
Dewpoint 69°F (21°C)
Visibility 3.00 mi
Last update 16 Jul 12:53 am EDT
Extended Forecast for

Nantucket Memorial Airport MA

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly cloudy, with a low around 68. Southwest wind around 6 mph.

    Low: 68 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy dense fog before noon. Otherwise, partly sunny, with a high near 80. Southwest wind 6 to 10 mph.

    High: 80 °F

    Patchy Dense
    Fog then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog. Otherwise, mostly cloudy, with a low around 70. Southwest wind around 8 mph.

    Low: 70 °F

    Patchy Fog

  • Thursday

    Thursday: Showers and possibly a thunderstorm before 9am, then a slight chance of showers after 3pm. Patchy fog before 9am. High near 80. Southwest wind 10 to 14 mph. Chance of precipitation is 80%.

    High: 80 °F

    Showers and
    Patchy Fog
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: A slight chance of showers before 2am. Partly cloudy, with a low around 70. Southwest wind 11 to 13 mph. Chance of precipitation is 20%.

    Low: 70 °F

    Slight Chance
    Showers

  • Friday

    Friday: Sunny, with a high near 81. West wind around 11 mph becoming north in the afternoon.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 66. North wind around 6 mph.

    Low: 66 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 77. Northeast wind around 8 mph becoming southeast in the afternoon.

    High: 77 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 66. South wind around 6 mph.

    Low: 66 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 68. Southwest wind around 6 mph.
Wednesday
Patchy dense fog before noon. Otherwise, partly sunny, with a high near 80. Southwest wind 6 to 10 mph.
Wednesday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 70. Southwest wind around 8 mph.
Thursday
Showers and possibly a thunderstorm before 9am, then a slight chance of showers after 3pm. Patchy fog before 9am. High near 80. Southwest wind 10 to 14 mph. Chance of precipitation is 80%.
Thursday Night
A slight chance of showers before 2am. Partly cloudy, with a low around 70. Southwest wind 11 to 13 mph. Chance of precipitation is 20%.
Friday
Sunny, with a high near 81. West wind around 11 mph becoming north in the afternoon.
Friday Night
Partly cloudy, with a low around 66. North wind around 6 mph.
Saturday
Sunny, with a high near 77. Northeast wind around 8 mph becoming southeast in the afternoon.
Saturday Night
Partly cloudy, with a low around 66. South wind around 6 mph.
Sunday
A chance of showers after 9am. Partly sunny, with a high near 78. South wind 8 to 11 mph. Chance of precipitation is 40%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 66. South wind 6 to 8 mph becoming west after midnight. Chance of precipitation is 40%.
Monday
Mostly sunny, with a high near 77. Northeast wind around 10 mph.
Monday Night
Partly cloudy, with a low around 66. East wind around 6 mph.
Tuesday
Mostly sunny, with a high near 76. East wind 7 to 10 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Nantucket Memorial Airport MA
 41.25°N 70.09°W (Elev. 23 ft)
Last Update:
1:31 am EDT Jul 16, 2025
Forecast Valid:
1am EDT Jul 16, 2025-6pm EDT Jul 22, 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