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.

Fair

54°F

12°C

Humidity 83%
Wind Speed NE 8 mph
Barometer 30.22 in (1023.2 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 18 Aug 11:53 pm EDT
Extended Forecast for

Nantucket MA

High Surf Advisory August 19, 08:00am until August 21, 08:00pm
Click here for hazard details and duration
High Surf Advisory

  • Overnight

    Overnight: Partly cloudy, with a low around 53. Northeast wind around 9 mph.

    Low: 53 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 72. Northeast wind around 10 mph.

    High: 72 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 60. Southeast wind around 7 mph.

    Low: 60 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 73. East wind 8 to 11 mph.

    High: 73 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers. Partly cloudy, with a low around 61. East wind around 9 mph. Chance of precipitation is 20%.

    Low: 61 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 73. Northeast wind 14 to 17 mph.

    High: 73 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 61. Northeast wind around 18 mph.

    Low: 61 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 75. Breezy, with a north wind 18 to 21 mph.

    High: 75 °F

    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 62. North wind around 11 mph.

    Low: 62 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 53. Northeast wind around 9 mph.
Tuesday
Mostly sunny, with a high near 72. Northeast wind around 10 mph.
Tuesday Night
Partly cloudy, with a low around 60. Southeast wind around 7 mph.
Wednesday
Mostly sunny, with a high near 73. East wind 8 to 11 mph.
Wednesday Night
A slight chance of showers. Partly cloudy, with a low around 61. East wind around 9 mph. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 73. Northeast wind 14 to 17 mph.
Thursday Night
Mostly cloudy, with a low around 61. Northeast wind around 18 mph.
Friday
Mostly sunny, with a high near 75. Breezy, with a north wind 18 to 21 mph.
Friday Night
Mostly clear, with a low around 62. North wind around 11 mph.
Saturday
Sunny, with a high near 76. North wind 10 to 14 mph becoming south in the afternoon.
Saturday Night
Partly cloudy, with a low around 64. South wind around 10 mph.
Sunday
Mostly sunny, with a high near 77. South wind 10 to 14 mph.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 64. South wind around 11 mph. Chance of precipitation is 40%.
Monday
A chance of showers. Partly sunny, with a high near 77. Southwest wind around 11 mph. Chance of precipitation is 40%.
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:
6:51 pm EDT Aug 18, 2025
Forecast Valid:
12am EDT Aug 19, 2025-6pm EDT Aug 25, 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