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

49°F

9°C

Humidity 77%
Wind Speed SW 15 mph
Barometer 30.14 in (1020.4 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 13 May 12:53 am EDT
Extended Forecast for

Nantucket MA

  • Overnight

    Overnight: Partly cloudy, with a low around 50. Southwest wind around 9 mph.

    Low: 50 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 63. South wind 9 to 16 mph.

    High: 63 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 53. South wind 10 to 13 mph.

    Low: 53 °F

    Mostly Cloudy

  • Thursday

    Thursday: Showers, mainly after 10am. High near 64. East wind around 14 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 64 °F

    Showers

  • Thursday Night

    Thursday Night: Showers. Patchy fog before 9pm. Low around 50. Southeast wind 5 to 7 mph. Chance of precipitation is 80%.

    Low: 50 °F

    Showers and
    Patchy Fog

  • Friday

    Friday: Showers likely, mainly before noon. Mostly cloudy, with a high near 59. North wind 5 to 10 mph. Chance of precipitation is 60%.

    High: 59 °F

    Showers
    Likely

  • Friday Night

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

    Low: 50 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 67. Southwest wind 9 to 15 mph.

    High: 67 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 54. Southwest wind 11 to 13 mph, with gusts as high as 23 mph.

    Low: 54 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 50. Southwest wind around 9 mph.
Wednesday
Partly sunny, with a high near 63. South wind 9 to 16 mph.
Wednesday Night
Mostly cloudy, with a low around 53. South wind 10 to 13 mph.
Thursday
Showers, mainly after 10am. High near 64. East wind around 14 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Showers. Patchy fog before 9pm. Low around 50. Southeast wind 5 to 7 mph. Chance of precipitation is 80%.
Friday
Showers likely, mainly before noon. Mostly cloudy, with a high near 59. North wind 5 to 10 mph. Chance of precipitation is 60%.
Friday Night
Mostly cloudy, with a low around 50. Northwest wind around 7 mph.
Saturday
Sunny, with a high near 67. Southwest wind 9 to 15 mph.
Saturday Night
Partly cloudy, with a low around 54. Southwest wind 11 to 13 mph, with gusts as high as 23 mph.
Sunday
Sunny, with a high near 70. Southwest wind 10 to 13 mph.
Sunday Night
Partly cloudy, with a low around 54. West wind 5 to 8 mph.
Monday
Mostly sunny, with a high near 67. East wind 5 to 8 mph.
Monday Night
Mostly cloudy, with a low around 54. South wind around 5 mph.
Tuesday
Partly sunny, with a high near 69. Southwest wind 6 to 13 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Nantucket MA
 41.28°N 70.09°W (Elev. 3 ft)
Last Update:
12:35 am EDT May 13, 2026
Forecast Valid:
1am EDT May 13, 2026-6pm EDT May 19, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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