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.

Overcast

68°F

20°C

Humidity 96%
Wind Speed SW 9 mph
Barometer 30.02 in (1016.5 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 18 Sep 3:53 am EDT
Extended Forecast for

Nantucket MA

  • Overnight

    Overnight: A chance of showers. Cloudy, with a low around 66. Southwest wind around 11 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 66 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers, mainly before 7am. Cloudy through mid morning, then gradual clearing, with a high near 73. West wind around 10 mph becoming north in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 73 °F

    Chance
    Showers then
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 57. Light northeast wind increasing to 10 to 15 mph in the evening.

    Low: 57 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 65. Northeast wind 9 to 13 mph.

    High: 65 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 55. East wind around 5 mph.

    Low: 55 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 68. Southeast wind 7 to 10 mph. Chance of precipitation is 30%.

    High: 68 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Showers likely. Patchy fog after 10pm. Otherwise, cloudy, with a low around 58. East wind around 6 mph. Chance of precipitation is 70%.

    Low: 58 °F

    Showers
    Likely and
    Patchy Fog

  • Monday

    Monday: A chance of showers. The rain could be heavy at times. Mostly cloudy, with a high near 67. Northeast wind 10 to 15 mph. Chance of precipitation is 50%.

    High: 67 °F

    Heavy Rain

  • Monday Night

    Monday Night: A chance of showers. Mostly cloudy, with a low around 56. Northeast wind 15 to 17 mph. Chance of precipitation is 40%.

    Low: 56 °F

    Chance
    Showers

Detailed Forecast

Overnight
A chance of showers. Cloudy, with a low around 66. Southwest wind around 11 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A chance of showers, mainly before 7am. Cloudy through mid morning, then gradual clearing, with a high near 73. West wind around 10 mph becoming north in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Partly cloudy, with a low around 57. Light northeast wind increasing to 10 to 15 mph in the evening.
Saturday
Mostly sunny, with a high near 65. Northeast wind 9 to 13 mph.
Saturday Night
Partly cloudy, with a low around 55. East wind around 5 mph.
Sunday
A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 68. Southeast wind 7 to 10 mph. Chance of precipitation is 30%.
Sunday Night
Showers likely. Patchy fog after 10pm. Otherwise, cloudy, with a low around 58. East wind around 6 mph. Chance of precipitation is 70%.
Monday
A chance of showers. The rain could be heavy at times. Mostly cloudy, with a high near 67. Northeast wind 10 to 15 mph. Chance of precipitation is 50%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 56. Northeast wind 15 to 17 mph. Chance of precipitation is 40%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 65. Breezy, with a northeast wind around 21 mph. Chance of precipitation is 40%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 56. Breezy, with a northeast wind around 22 mph. Chance of precipitation is 30%.
Wednesday
Partly sunny, with a high near 64. Breezy, with a northeast wind 22 to 25 mph.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 56. Breezy, with a northeast wind 22 to 24 mph. Chance of precipitation is 30%.
Thursday
A chance of showers. Partly sunny, with a high near 65. Breezy, with a northeast wind 21 to 24 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 70.09°W (Elev. 3 ft)
Last Update:
3:02 am EDT Sep 18, 2026
Forecast Valid:
4am EDT Sep 18, 2026-6pm EDT Sep 24, 2026
 
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