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

69°F

21°C

Humidity 61%
Wind Speed SW 14 mph
Barometer 30.03 in (1016.9 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 17 May 12:53 pm EDT
Extended Forecast for

Nantucket Memorial Airport MA

  • This Afternoon

    This Afternoon: Sunny, with a high near 67. Southwest wind around 16 mph.

    High: 67 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 55. Southwest wind 7 to 13 mph becoming north after midnight.

    Low: 55 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 62. East wind 9 to 11 mph.

    High: 62 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 56. Southwest wind 9 to 11 mph.

    Low: 56 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 69. Breezy, with a southwest wind 15 to 21 mph.

    High: 69 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 59. Southwest wind around 16 mph.

    Low: 59 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 67. Breezy, with a southwest wind 17 to 22 mph.

    High: 67 °F

    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: A chance of showers after 9pm. Mostly cloudy, with a low around 55. Southwest wind 11 to 16 mph. Chance of precipitation is 40%.

    Low: 55 °F

    Chance
    Showers

  • Thursday

    Thursday: Partly sunny, with a high near 65. Northeast wind 11 to 14 mph.

    High: 65 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 67. Southwest wind around 16 mph.
Tonight
Partly cloudy, with a low around 55. Southwest wind 7 to 13 mph becoming north after midnight.
Monday
Mostly sunny, with a high near 62. East wind 9 to 11 mph.
Monday Night
Partly cloudy, with a low around 56. Southwest wind 9 to 11 mph.
Tuesday
Sunny, with a high near 69. Breezy, with a southwest wind 15 to 21 mph.
Tuesday Night
Partly cloudy, with a low around 59. Southwest wind around 16 mph.
Wednesday
Sunny, with a high near 67. Breezy, with a southwest wind 17 to 22 mph.
Wednesday Night
A chance of showers after 9pm. Mostly cloudy, with a low around 55. Southwest wind 11 to 16 mph. Chance of precipitation is 40%.
Thursday
Partly sunny, with a high near 65. Northeast wind 11 to 14 mph.
Thursday Night
Partly cloudy, with a low around 51. Light and variable wind becoming north around 6 mph after midnight.
Friday
Partly sunny, with a high near 61. Northeast wind 9 to 11 mph.
Friday Night
Mostly cloudy, with a low around 51. Southeast wind around 7 mph.
Saturday
A chance of showers. Mostly cloudy, with a high near 62. East wind 8 to 13 mph. Chance of precipitation is 30%.
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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:
3:17 am EDT May 17, 2026
Forecast Valid:
1pm EDT May 17, 2026-6pm EDT May 23, 2026
 
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