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

78°F

26°C

Humidity 52%
Wind Speed N 8 mph
Barometer 29.93 in (1013.5 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 19 Sep 1:53 pm EDT
Extended Forecast for

Nantucket MA

  • This Afternoon

    This Afternoon: Sunny, with a high near 74. North wind 5 to 7 mph.

    High: 74 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 57. Light and variable wind becoming northeast 8 to 13 mph after midnight.

    Low: 57 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 66. Northeast wind 10 to 13 mph.

    High: 66 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 48. East wind around 7 mph.

    Low: 48 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 68. East wind 9 to 13 mph.

    High: 68 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers after 11pm. Partly cloudy, with a low around 57. East wind 8 to 10 mph. Chance of precipitation is 20%.

    Low: 57 °F

    Slight Chance
    Showers

  • Monday

    Monday: Sunny, with a high near 70. East wind around 10 mph.

    High: 70 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 59. South wind around 6 mph becoming southwest after midnight.

    Low: 59 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 72. Southwest wind 8 to 13 mph.

    High: 72 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 74. North wind 5 to 7 mph.
Tonight
Mostly clear, with a low around 57. Light and variable wind becoming northeast 8 to 13 mph after midnight.
Saturday
Sunny, with a high near 66. Northeast wind 10 to 13 mph.
Saturday Night
Mostly clear, with a low around 48. East wind around 7 mph.
Sunday
Mostly sunny, with a high near 68. East wind 9 to 13 mph.
Sunday Night
A slight chance of showers after 11pm. Partly cloudy, with a low around 57. East wind 8 to 10 mph. Chance of precipitation is 20%.
Monday
Sunny, with a high near 70. East wind around 10 mph.
Monday Night
Partly cloudy, with a low around 59. South wind around 6 mph becoming southwest after midnight.
Tuesday
Mostly sunny, with a high near 72. Southwest wind 8 to 13 mph.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 61. Southwest wind around 10 mph. Chance of precipitation is 50%.
Wednesday
A chance of showers. Partly sunny, with a high near 72. Southwest wind 9 to 11 mph. Chance of precipitation is 40%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 58. North wind around 8 mph. Chance of precipitation is 30%.
Thursday
A chance of showers. Mostly sunny, with a high near 71. North wind around 11 mph. 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 70.12°W (Elev. 49 ft)
Last Update:
2:08 pm EDT Sep 19, 2025
Forecast Valid:
2pm EDT Sep 19, 2025-6pm EDT Sep 25, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation