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.

Overcast

51°F

11°C

Humidity 74%
Wind Speed SE 3 mph
Barometer 30.27 in (1024.9 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 21 May 9:53 pm EDT
Extended Forecast for

Nantucket Memorial Airport MA

  • Tonight

    Tonight: Mostly cloudy, with a low around 45. Light and variable wind.

    Low: 45 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 58. Northeast wind 13 to 16 mph.

    High: 58 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 43. East wind 5 to 8 mph.

    Low: 43 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 62. East wind 9 to 13 mph.

    High: 62 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Showers likely, mainly after 2am. Cloudy, with a low around 51. East wind 10 to 14 mph. Chance of precipitation is 60%.

    Low: 51 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers. High near 59. Breezy, with an east wind 18 to 24 mph. Chance of precipitation is 100%.

    High: 59 °F

    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Showers. Low around 55. Breezy, with an east wind 13 to 20 mph. Chance of precipitation is 80%.

    Low: 55 °F

    Showers and
    Breezy

  • Memorial Day

    Memorial Day: A chance of showers. Mostly cloudy, with a high near 67. Southwest wind 9 to 11 mph becoming northwest in the afternoon. Chance of precipitation is 40%.

    High: 67 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers. Cloudy, with a low around 54. Northwest wind around 6 mph. Chance of precipitation is 30%.

    Low: 54 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 45. Light and variable wind.
Friday
Mostly sunny, with a high near 58. Northeast wind 13 to 16 mph.
Friday Night
Mostly cloudy, with a low around 43. East wind 5 to 8 mph.
Saturday
Mostly cloudy, with a high near 62. East wind 9 to 13 mph.
Saturday Night
Showers likely, mainly after 2am. Cloudy, with a low around 51. East wind 10 to 14 mph. Chance of precipitation is 60%.
Sunday
Showers. High near 59. Breezy, with an east wind 18 to 24 mph. Chance of precipitation is 100%.
Sunday Night
Showers. Low around 55. Breezy, with an east wind 13 to 20 mph. Chance of precipitation is 80%.
Memorial Day
A chance of showers. Mostly cloudy, with a high near 67. Southwest wind 9 to 11 mph becoming northwest in the afternoon. Chance of precipitation is 40%.
Monday Night
A chance of showers. Cloudy, with a low around 54. Northwest wind around 6 mph. Chance of precipitation is 30%.
Tuesday
Mostly cloudy, with a high near 66. North wind 6 to 9 mph becoming southwest in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 54. Southwest wind 6 to 8 mph.
Wednesday
Mostly sunny, with a high near 69. Northwest wind 9 to 13 mph.
Wednesday Night
Partly cloudy, with a low around 54. North wind 7 to 9 mph.
Thursday
Mostly sunny, with a high near 66. North wind 10 to 14 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Nantucket Memorial Airport MA
 41.25°N 70.06°W (Elev. 0 ft)
Last Update:
8:46 pm EDT May 21, 2026
Forecast Valid:
10pm EDT May 21, 2026-6pm EDT May 28, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation