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

53°F

12°C

Humidity 89%
Wind Speed S 16 mph
Barometer 29.97 in (1014.9 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 13 May 11:53 pm EDT
Extended Forecast for

Nantucket MA

  • Overnight

    Overnight: Mostly cloudy, with a low around 53. Southeast wind around 11 mph.

    Low: 53 °F

    Mostly Cloudy

  • Thursday

    Thursday: Showers, with thunderstorms also possible after 2pm. High near 63. East wind around 15 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

    High: 63 °F

    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 4am, then a chance of showers between 4am and 5am. Patchy fog. Low around 50. East wind 5 to 8 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 50 °F

    Showers and
    Patchy Fog

  • Friday

    Friday: A chance of showers, mainly after 9am. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 59. East wind 5 to 10 mph becoming north in the afternoon. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 59 °F

    Chance
    Showers and
    Patchy Fog

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 50. North wind around 7 mph.

    Low: 50 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 66. Southwest wind 9 to 15 mph.

    High: 66 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 54. Southwest wind 13 to 15 mph.

    Low: 54 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 64. Southwest wind 11 to 14 mph.

    High: 64 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 53. Southwest wind 5 to 9 mph becoming northwest after midnight.

    Low: 53 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 53. Southeast wind around 11 mph.
Thursday
Showers, with thunderstorms also possible after 2pm. High near 63. East wind around 15 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Thursday Night
Showers and possibly a thunderstorm before 4am, then a chance of showers between 4am and 5am. Patchy fog. Low around 50. East wind 5 to 8 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday
A chance of showers, mainly after 9am. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 59. East wind 5 to 10 mph becoming north in the afternoon. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Mostly cloudy, with a low around 50. North wind around 7 mph.
Saturday
Sunny, with a high near 66. Southwest wind 9 to 15 mph.
Saturday Night
Mostly clear, with a low around 54. Southwest wind 13 to 15 mph.
Sunday
Mostly sunny, with a high near 64. Southwest wind 11 to 14 mph.
Sunday Night
Partly cloudy, with a low around 53. Southwest wind 5 to 9 mph becoming northwest after midnight.
Monday
Mostly sunny, with a high near 61. Northeast wind 6 to 8 mph becoming east in the afternoon.
Monday Night
Partly cloudy, with a low around 53. South wind around 8 mph.
Tuesday
Mostly sunny, with a high near 62. Southwest wind 9 to 15 mph.
Tuesday Night
Mostly cloudy, with a low around 54. Southwest wind around 14 mph.
Wednesday
Partly sunny, with a high near 63. Southwest wind 13 to 16 mph.
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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:
6:25 pm EDT May 13, 2026
Forecast Valid:
12am EDT May 14, 2026-6pm EDT May 20, 2026
 
Forecast Discussion
 
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Additional Resources

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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