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

59°F

15°C

Humidity 87%
Wind Speed E 13 mph
Barometer 30.14 in (1020.5 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 16 Jun 8:53 pm EDT
Extended Forecast for

3 Miles NNE Siasconset MA

  • Tonight

    Tonight: A slight chance of showers after 1am. Patchy fog between 1am and 2am. Otherwise, mostly cloudy, with a low around 57. East wind 9 to 11 mph. Chance of precipitation is 20%.

    Low: 57 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 66. East wind 11 to 13 mph.

    High: 66 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Tuesday Night

    Tuesday Night: A slight chance of showers after 9pm. Cloudy, with a low around 58. Southeast wind 7 to 9 mph. Chance of precipitation is 20%.

    Low: 58 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers before 1pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 69. Southwest wind 7 to 10 mph. Chance of precipitation is 20%.

    High: 69 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: A slight chance of thunderstorms, then a chance of showers and thunderstorms after 7pm. Mostly cloudy, with a low around 61. Southwest wind around 9 mph. Chance of precipitation is 30%.

    Low: 61 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Juneteenth

    Juneteenth: A chance of showers, mainly before 7am. Partly sunny, with a high near 72. Southwest wind 10 to 14 mph. Chance of precipitation is 30%.

    High: 72 °F

    Chance
    Showers then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 62. Southwest wind around 14 mph.

    Low: 62 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 71. West wind around 14 mph.

    High: 71 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 60. West wind 8 to 10 mph.

    Low: 60 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of showers after 1am. Patchy fog between 1am and 2am. Otherwise, mostly cloudy, with a low around 57. East wind 9 to 11 mph. Chance of precipitation is 20%.
Tuesday
Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 66. East wind 11 to 13 mph.
Tuesday Night
A slight chance of showers after 9pm. Cloudy, with a low around 58. Southeast wind 7 to 9 mph. Chance of precipitation is 20%.
Wednesday
A slight chance of showers before 1pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 69. Southwest wind 7 to 10 mph. Chance of precipitation is 20%.
Wednesday Night
A slight chance of thunderstorms, then a chance of showers and thunderstorms after 7pm. Mostly cloudy, with a low around 61. Southwest wind around 9 mph. Chance of precipitation is 30%.
Juneteenth
A chance of showers, mainly before 7am. Partly sunny, with a high near 72. Southwest wind 10 to 14 mph. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 62. Southwest wind around 14 mph.
Friday
Sunny, with a high near 71. West wind around 14 mph.
Friday Night
Mostly clear, with a low around 60. West wind 8 to 10 mph.
Saturday
Sunny, with a high near 70. West wind around 10 mph becoming southwest in the afternoon.
Saturday Night
Partly cloudy, with a low around 62. Southwest wind around 9 mph.
Sunday
Mostly sunny, with a high near 71. Southwest wind 10 to 13 mph.
Sunday Night
Partly cloudy, with a low around 61. Southwest wind 8 to 10 mph.
Monday
Mostly sunny, with a high near 72. South wind around 11 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Siasconset MA
 41.31°N 69.99°W (Elev. 49 ft)
Last Update:
3:26 pm EDT Jun 16, 2025
Forecast Valid:
9pm EDT Jun 16, 2025-6pm EDT Jun 23, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation