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

67°F

19°C

Humidity 97%
Wind Speed SE 9 mph
Barometer 29.75 in (1007.3 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 28 Jul 11:53 pm EDT
Extended Forecast for

2 Miles ENE Nantucket Memorial Airport MA

  • Overnight

    Overnight: Partly cloudy, with a low around 65. Southeast wind around 8 mph.

    Low: 65 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3pm. Mostly cloudy, with a high near 77. Southeast wind 13 to 16 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 64. East wind 8 to 14 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 64 °F

    Showers
    Likely

  • Thursday

    Thursday: A slight chance of showers before 7am, then a slight chance of showers and thunderstorms after 11am. Partly sunny, with a high near 77. East wind 7 to 11 mph becoming west in the morning. Chance of precipitation is 20%.

    High: 77 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 64. North wind around 9 mph. Chance of precipitation is 40%.

    Low: 64 °F

    Chance
    Showers

  • Friday

    Friday: Partly sunny, with a high near 77. North wind around 11 mph.

    High: 77 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 63. Northwest wind around 7 mph.

    Low: 63 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 74. North wind 5 to 9 mph becoming southwest in the afternoon.

    High: 74 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 63. Southwest wind 5 to 7 mph.

    Low: 63 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 65. Southeast wind around 8 mph.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3pm. Mostly cloudy, with a high near 77. Southeast wind 13 to 16 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 64. East wind 8 to 14 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
A slight chance of showers before 7am, then a slight chance of showers and thunderstorms after 11am. Partly sunny, with a high near 77. East wind 7 to 11 mph becoming west in the morning. Chance of precipitation is 20%.
Thursday Night
A chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 64. North wind around 9 mph. Chance of precipitation is 40%.
Friday
Partly sunny, with a high near 77. North wind around 11 mph.
Friday Night
Partly cloudy, with a low around 63. Northwest wind around 7 mph.
Saturday
Mostly sunny, with a high near 74. North wind 5 to 9 mph becoming southwest in the afternoon.
Saturday Night
Mostly cloudy, with a low around 63. Southwest wind 5 to 7 mph.
Sunday
Partly sunny, with a high near 76. South wind 6 to 11 mph.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 65. South wind around 8 mph. Chance of precipitation is 30%.
Monday
A chance of showers. Partly sunny, with a high near 77. Southwest wind 7 to 11 mph. Chance of precipitation is 30%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 65. Southwest wind around 7 mph. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 77. North wind 8 to 10 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Nantucket Memorial Airport MA
 41.27°N 70.03°W (Elev. 52 ft)
Last Update:
3:27 pm EDT Jul 28, 2026
Forecast Valid:
12am EDT Jul 29, 2026-6pm EDT Aug 4, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation