National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Nantucket, Nantucket Memorial Airport (KACK)

Lat: 41.25°NLon: 70.06°WElev: 46ft.

Fog/Mist

64°F

18°C

Humidity 100%
Wind Speed W 12 mph
Barometer 29.60 in (1002.2 mb)
Dewpoint 64°F (18°C)
Visibility 0.75 mi
Last update 15 Jun 7:53 am EDT
Extended Forecast for

Nantucket MA

Coastal Flood Advisory June 15, 08:28am until June 16, 02:00am
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory June 15, 08:28am until June 16, 02:00am

    NOW until 2:00am Tue

    Coastal Flood Advisory

  • Today

    High: 81 °F

    Heavy Rain
    and Patchy
    Fog then
    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 62. Southwest wind 6 to 9 mph becoming north after midnight.

    Low: 62 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 77. North wind 6 to 11 mph becoming southwest in the afternoon.

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 61. Southwest wind 6 to 8 mph.

    Low: 61 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 77. South wind 6 to 10 mph.

    High: 77 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers between 10pm and 1am. Mostly cloudy, with a low around 62. South wind around 6 mph. Chance of precipitation is 20%.

    Low: 62 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Partly sunny, with a high near 82. South wind 8 to 18 mph, with gusts as high as 28 mph.

    High: 82 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A chance of showers. Mostly cloudy, with a low around 66. Breezy, with a southwest wind 15 to 20 mph. Chance of precipitation is 40%.

    Low: 66 °F

    Chance
    Showers and
    Breezy

Detailed Forecast

Today
Showers likely and possibly a thunderstorm before 9am. Some of the storms could produce heavy rainfall. Patchy fog before 9am. Otherwise, partly sunny, with a high near 81. Southwest wind 9 to 13 mph becoming west in the afternoon. Chance of precipitation is 60%.
Tonight
Partly cloudy, with a low around 62. Southwest wind 6 to 9 mph becoming north after midnight.
Tuesday
Sunny, with a high near 77. North wind 6 to 11 mph becoming southwest in the afternoon.
Tuesday Night
Mostly clear, with a low around 61. Southwest wind 6 to 8 mph.
Wednesday
Mostly sunny, with a high near 77. South wind 6 to 10 mph.
Wednesday Night
A slight chance of showers between 10pm and 1am. Mostly cloudy, with a low around 62. South wind around 6 mph. Chance of precipitation is 20%.
Thursday
Partly sunny, with a high near 82. South wind 8 to 18 mph, with gusts as high as 28 mph.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 66. Breezy, with a southwest wind 15 to 20 mph. Chance of precipitation is 40%.
Juneteenth
A chance of showers. Partly sunny, with a high near 81. Southwest wind 13 to 17 mph. Chance of precipitation is 40%.
Friday Night
Partly cloudy, with a low around 65. West wind 10 to 15 mph.
Saturday
Sunny, with a high near 80. Southwest wind 14 to 18 mph.
Saturday Night
Mostly clear, with a low around 65. West wind around 15 mph.
Sunday
Sunny, with a high near 80. Southwest wind 14 to 17 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:
6:32 am EDT Jun 15, 2026
Forecast Valid:
8am EDT Jun 15, 2026-6pm EDT Jun 21, 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