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

69°F

21°C

Humidity 81%
Wind Speed E 15 mph
Barometer 30.09 in (1019.1 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 13 Jul 4:53 pm EDT
Extended Forecast for

Nantucket MA

  • Tonight

    Tonight: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 64. Southeast wind 5 to 8 mph becoming calm after midnight.

    Low: 64 °F

    Patchy Fog

  • Monday

    Monday: Partly sunny, with a high near 78. East wind 5 to 7 mph becoming south in the afternoon.

    High: 78 °F

    Partly Sunny

  • Monday Night

    Monday Night: Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 67. Southwest wind around 6 mph.

    Low: 67 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Partly sunny, with a high near 80. Southwest wind 8 to 10 mph.

    High: 80 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 69. Southwest wind around 7 mph.

    Low: 69 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 81. Southwest wind 7 to 10 mph.

    High: 81 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 70. Southwest wind around 8 mph.

    Low: 70 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 82. Southwest wind 10 to 13 mph.

    High: 82 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 70. Southwest wind around 10 mph.

    Low: 70 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 64. Southeast wind 5 to 8 mph becoming calm after midnight.
Monday
Partly sunny, with a high near 78. East wind 5 to 7 mph becoming south in the afternoon.
Monday Night
Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 67. Southwest wind around 6 mph.
Tuesday
Partly sunny, with a high near 80. Southwest wind 8 to 10 mph.
Tuesday Night
Mostly cloudy, with a low around 69. Southwest wind around 7 mph.
Wednesday
Mostly sunny, with a high near 81. Southwest wind 7 to 10 mph.
Wednesday Night
Mostly cloudy, with a low around 70. Southwest wind around 8 mph.
Thursday
Partly sunny, with a high near 82. Southwest wind 10 to 13 mph.
Thursday Night
Mostly cloudy, with a low around 70. Southwest wind around 10 mph.
Friday
Mostly sunny, with a high near 83. Southwest wind 10 to 13 mph.
Friday Night
A chance of showers. Mostly cloudy, with a low around 68. West wind around 9 mph. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 81. North wind around 10 mph.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 67. South wind around 6 mph becoming northwest after midnight. Chance of precipitation is 30%.
Sunday
Partly sunny, with a high near 80. North wind 7 to 10 mph becoming southeast in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Nantucket MA
 41.28°N 70.09°W (Elev. 3 ft)
Last Update:
3:59 pm EDT Jul 13, 2025
Forecast Valid:
5pm EDT Jul 13, 2025-6pm EDT Jul 20, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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