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

74°F

23°C

Humidity 57%
Wind Speed N 15 mph
Barometer 30.18 in (1021.9 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 29 Aug 12:53 pm EDT
Extended Forecast for

4 Miles W Nantucket MA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 72. Northeast wind 8 to 10 mph.

    High: 72 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 67. South wind 5 to 8 mph becoming west after midnight.

    Low: 67 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 76. Southwest wind 10 to 15 mph.

    High: 76 °F

    Sunny

  • Sunday Night

    Sunday Night: A chance of showers, mainly after 7pm. Mostly cloudy, with a low around 68. Southwest wind around 15 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 68 °F

    Chance
    Showers

  • Monday

    Monday: A slight chance of showers before 10am. Mostly sunny, with a high near 74. Northwest wind 10 to 13 mph becoming northeast in the afternoon. Chance of precipitation is 20%.

    High: 74 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 65. Southeast wind 3 to 7 mph.

    Low: 65 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 72. Southeast wind 7 to 10 mph.

    High: 72 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers. Mostly cloudy, with a low around 66. Southeast wind 9 to 13 mph. Chance of precipitation is 40%.

    Low: 66 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers. Mostly cloudy, with a high near 74. Southeast wind around 16 mph. Chance of precipitation is 40%.

    High: 74 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 72. Northeast wind 8 to 10 mph.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 67. South wind 5 to 8 mph becoming west after midnight.
Sunday
Sunny, with a high near 76. Southwest wind 10 to 15 mph.
Sunday Night
A chance of showers, mainly after 7pm. Mostly cloudy, with a low around 68. Southwest wind around 15 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
A slight chance of showers before 10am. Mostly sunny, with a high near 74. Northwest wind 10 to 13 mph becoming northeast in the afternoon. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 65. Southeast wind 3 to 7 mph.
Tuesday
Mostly sunny, with a high near 72. Southeast wind 7 to 10 mph.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 66. Southeast wind 9 to 13 mph. Chance of precipitation is 40%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 74. Southeast wind around 16 mph. Chance of precipitation is 40%.
Wednesday Night
Showers likely, mainly after 5am. Mostly cloudy, with a low around 68. South wind around 14 mph. Chance of precipitation is 60%.
Thursday
A chance of showers. Mostly cloudy, with a high near 76. Southwest wind around 15 mph. Chance of precipitation is 50%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 67. Southwest wind around 15 mph becoming northwest after midnight. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 73. Northwest wind around 16 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Nantucket MA
 41.29°N 70.17°W (Elev. 3 ft)
Last Update:
10:57 am EDT Aug 29, 2026
Forecast Valid:
1pm EDT Aug 29, 2026-6pm EDT Sep 4, 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