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 100%
Wind Speed SW 6 mph
Barometer 30.07 in (1018.2 mb)
Dewpoint 67°F (19°C)
Visibility 9.00 mi
Last update 15 Jul 1:53 am EDT
Extended Forecast for

5 Miles W Nantucket MA

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly cloudy, with a low around 69. Southwest wind around 9 mph.

    Low: 69 °F

    Patchy Fog

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and noon. Patchy fog. Otherwise, mostly cloudy, with a high near 78. Southwest wind 9 to 11 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Chance
    Showers and
    Patchy Fog
    then Patchy
    Fog

  • Tuesday Night

    Tuesday Night: Patchy fog. Otherwise, mostly cloudy, with a low around 70. Southwest wind 7 to 10 mph.

    Low: 70 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 11am. Otherwise, partly sunny, with a high near 80. Southwest wind 8 to 11 mph.

    High: 80 °F

    Patchy Fog
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers between 3am and 5am, then a slight chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 71. Southwest wind 11 to 13 mph. Chance of precipitation is 20%.

    Low: 71 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: A slight chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and 3pm. Partly sunny, with a high near 80. Southwest wind 14 to 16 mph. Chance of precipitation is 20%.

    High: 80 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 72. Southwest wind around 16 mph.

    Low: 72 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 81. West wind 11 to 13 mph.

    High: 81 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 68. North wind 7 to 9 mph.

    Low: 68 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 69. Southwest wind around 9 mph.
Tuesday
A chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and noon. Patchy fog. Otherwise, mostly cloudy, with a high near 78. Southwest wind 9 to 11 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 70. Southwest wind 7 to 10 mph.
Wednesday
Patchy fog before 11am. Otherwise, partly sunny, with a high near 80. Southwest wind 8 to 11 mph.
Wednesday Night
A slight chance of showers between 3am and 5am, then a slight chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 71. Southwest wind 11 to 13 mph. Chance of precipitation is 20%.
Thursday
A slight chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and 3pm. Partly sunny, with a high near 80. Southwest wind 14 to 16 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 72. Southwest wind around 16 mph.
Friday
Mostly sunny, with a high near 81. West wind 11 to 13 mph.
Friday Night
Mostly cloudy, with a low around 68. North wind 7 to 9 mph.
Saturday
Sunny, with a high near 77. Northeast wind around 10 mph.
Saturday Night
Partly cloudy, with a low around 68. East wind around 7 mph becoming southwest after midnight.
Sunday
Partly sunny, with a high near 78. South wind 7 to 11 mph.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 68. South wind around 10 mph. Chance of precipitation is 40%.
Monday
A chance of showers. Mostly sunny, with a high near 78. South wind 11 to 13 mph. Chance of precipitation is 30%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles W Nantucket MA
 41.29°N 70.2°W (Elev. 0 ft)
Last Update:
1:16 am EDT Jul 15, 2025
Forecast Valid:
2am EDT Jul 15, 2025-6pm EDT Jul 21, 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