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

63°F

17°C

Humidity 56%
Wind Speed NE 15 mph
Barometer 30.21 in (1023.0 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 19 Sep 10:53 am EDT
Extended Forecast for

Nantucket MA

  • Today

    Today: Mostly sunny, with a high near 63. Northeast wind 10 to 13 mph.

    High: 63 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 56. East wind around 6 mph.

    Low: 56 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers, mainly after 3pm. Mostly cloudy, with a high near 67. Southeast wind 9 to 11 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 67 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Showers before 11pm, then showers and possibly a thunderstorm between 11pm and 2am, then showers likely after 2am. Patchy fog before 9pm. Low around 58. Southeast wind 8 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 58 °F

    Showers and
    Patchy Fog

  • Monday

    Monday: Showers likely before 1pm, then a slight chance of showers after 2pm. Mostly cloudy, with a high near 66. Northeast wind 16 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 60%.

    High: 66 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 56. Northeast wind 13 to 15 mph.

    Low: 56 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 64. Northeast wind around 17 mph.

    High: 64 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 56. Breezy, with a northeast wind 18 to 20 mph.

    Low: 56 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Wednesday

    Wednesday: Partly sunny, with a high near 64. Breezy, with a northeast wind 22 to 24 mph.

    High: 64 °F

    Partly Sunny
    and Breezy

Detailed Forecast

Today
Mostly sunny, with a high near 63. Northeast wind 10 to 13 mph.
Tonight
Partly cloudy, with a low around 56. East wind around 6 mph.
Sunday
A chance of showers, mainly after 3pm. Mostly cloudy, with a high near 67. Southeast wind 9 to 11 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Showers before 11pm, then showers and possibly a thunderstorm between 11pm and 2am, then showers likely after 2am. Patchy fog before 9pm. Low around 58. Southeast wind 8 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Monday
Showers likely before 1pm, then a slight chance of showers after 2pm. Mostly cloudy, with a high near 66. Northeast wind 16 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 60%.
Monday Night
Mostly cloudy, with a low around 56. Northeast wind 13 to 15 mph.
Tuesday
Mostly cloudy, with a high near 64. Northeast wind around 17 mph.
Tuesday Night
Mostly cloudy, with a low around 56. Breezy, with a northeast wind 18 to 20 mph.
Wednesday
Partly sunny, with a high near 64. Breezy, with a northeast wind 22 to 24 mph.
Wednesday Night
A chance of showers after 3am. Mostly cloudy, with a low around 56. Windy, with a northeast wind 23 to 26 mph. Chance of precipitation is 30%.
Thursday
A chance of showers. Mostly cloudy, with a high near 64. Windy, with a northeast wind 23 to 30 mph. Chance of precipitation is 40%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 56. Windy, with a northeast wind 24 to 28 mph. Chance of precipitation is 40%.
Friday
A chance of showers. Mostly cloudy, with a high near 64. Windy, with a north wind 25 to 29 mph. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Nantucket MA
 41.28°N 70.12°W (Elev. 49 ft)
Last Update:
7:40 am EDT Sep 19, 2026
Forecast Valid:
11am EDT Sep 19, 2026-6pm EDT Sep 25, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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