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.

Fog

63°F

17°C

Humidity 100%
Wind Speed SE 3 mph
Barometer 30.08 in (1018.6 mb)
Dewpoint 63°F (17°C)
Visibility 0.25 mi
Last update 14 Jul 3:53 am EDT
Extended Forecast for

Nantucket MA

  • Today

    Today: Patchy fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 77. Calm wind becoming south 5 to 8 mph in the morning.

    High: 77 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Patchy fog before 2am, then patchy fog after 4am. Otherwise, mostly cloudy, with a low around 68. Southwest wind around 7 mph.

    Low: 68 °F

    Patchy Fog

  • Tuesday

    Tuesday: A slight chance of showers before 3pm. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 79. Southwest wind 8 to 10 mph. Chance of precipitation is 20%.

    High: 79 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Tuesday Night

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

    Low: 69 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 80. Southwest wind 7 to 10 mph.

    High: 80 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 70. Southwest wind around 9 mph.

    Low: 70 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 81. Southwest wind 10 to 13 mph.

    High: 81 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 70. Southwest wind around 11 mph.

    Low: 70 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 83. Southwest wind around 11 mph.

    High: 83 °F

    Mostly Sunny

Detailed Forecast

Today
Patchy fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 77. Calm wind becoming south 5 to 8 mph in the morning.
Tonight
Patchy fog before 2am, then patchy fog after 4am. Otherwise, mostly cloudy, with a low around 68. Southwest wind around 7 mph.
Tuesday
A slight chance of showers before 3pm. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 79. Southwest wind 8 to 10 mph. Chance of precipitation is 20%.
Tuesday Night
Mostly cloudy, with a low around 69. Southwest wind around 7 mph.
Wednesday
Partly sunny, with a high near 80. Southwest wind 7 to 10 mph.
Wednesday Night
Mostly cloudy, with a low around 70. Southwest wind around 9 mph.
Thursday
Mostly sunny, with a high near 81. Southwest wind 10 to 13 mph.
Thursday Night
Mostly cloudy, with a low around 70. Southwest wind around 11 mph.
Friday
Mostly sunny, with a high near 83. Southwest wind around 11 mph.
Friday Night
Mostly cloudy, with a low around 68. Southwest wind around 8 mph becoming northwest after midnight.
Saturday
Mostly sunny, with a high near 79. Northeast wind around 10 mph.
Saturday Night
Partly cloudy, with a low around 67. East wind around 6 mph becoming southwest after midnight.
Sunday
Mostly sunny, with a high near 78. South wind 7 to 10 mph.
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 70.12°W (Elev. 49 ft)
Last Update:
2:05 am EDT Jul 14, 2025
Forecast Valid:
4am EDT Jul 14, 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