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

56°F

13°C

Humidity 100%
Wind Speed SW 13 mph
Barometer 30.16 in (1021.3 mb)
Dewpoint 56°F (13°C)
Visibility 1.75 mi
Last update 19 May 1:53 am EDT
Extended Forecast for

Nantucket Memorial Airport MA

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly cloudy, with a low around 57. Southwest wind 11 to 13 mph.

    Low: 57 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 9am. Otherwise, partly sunny, with a high near 66. Breezy, with a southwest wind 15 to 20 mph.

    High: 66 °F

    Patchy Fog
    then Partly
    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Patchy dense fog after midnight. Otherwise, mostly cloudy, with a low around 59. Southwest wind around 17 mph.

    Low: 59 °F

    Mostly Cloudy
    then Patchy
    Dense Fog

  • Wednesday

    Wednesday: A chance of showers, mainly after 5pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 68. Breezy, with a southwest wind 18 to 22 mph. Chance of precipitation is 30%.

    High: 68 °F

    Breezy.
    Patchy Fog
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers likely after 9pm. Mostly cloudy, with a low around 54. West wind 10 to 14 mph becoming northwest after midnight. Chance of precipitation is 70%.

    Low: 54 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers before 8am. Partly sunny, with a high near 63. North wind 11 to 15 mph. Chance of precipitation is 30%.

    High: 63 °F

    Chance
    Showers then
    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 51. Southeast wind around 5 mph becoming calm in the evening.

    Low: 51 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 62. Northeast wind 6 to 8 mph becoming southeast in the afternoon.

    High: 62 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of showers after 2am. Mostly cloudy, with a low around 50. South wind around 6 mph. Chance of precipitation is 30%.

    Low: 50 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 57. Southwest wind 11 to 13 mph.
Tuesday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 66. Breezy, with a southwest wind 15 to 20 mph.
Tuesday Night
Patchy dense fog after midnight. Otherwise, mostly cloudy, with a low around 59. Southwest wind around 17 mph.
Wednesday
A chance of showers, mainly after 5pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 68. Breezy, with a southwest wind 18 to 22 mph. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms, then showers likely after 9pm. Mostly cloudy, with a low around 54. West wind 10 to 14 mph becoming northwest after midnight. Chance of precipitation is 70%.
Thursday
A chance of showers before 8am. Partly sunny, with a high near 63. North wind 11 to 15 mph. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 51. Southeast wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 62. Northeast wind 6 to 8 mph becoming southeast in the afternoon.
Friday Night
A chance of showers after 2am. Mostly cloudy, with a low around 50. South wind around 6 mph. Chance of precipitation is 30%.
Saturday
Showers likely, mainly after 10am. Cloudy, with a high near 62. East wind 6 to 13 mph. Chance of precipitation is 60%.
Saturday Night
Showers likely. Cloudy, with a low around 51. East wind 10 to 13 mph. Chance of precipitation is 70%.
Sunday
Showers likely. Mostly cloudy, with a high near 63. East wind 13 to 17 mph. Chance of precipitation is 60%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 52. East wind 8 to 10 mph. Chance of precipitation is 40%.
Memorial Day
A chance of showers. Mostly cloudy, with a high near 63. East wind 10 to 14 mph. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Nantucket Memorial Airport MA
 41.25°N 70.06°W (Elev. 0 ft)
Last Update:
12:23 am EDT May 19, 2026
Forecast Valid:
2am EDT May 19, 2026-6pm EDT May 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation