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

73°F

23°C

Humidity 96%
Wind Speed SW 6 mph
Barometer 30.10 in (1019.4 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 15 Jul 9:53 am EDT
Extended Forecast for

2 Miles E Siasconset MA

  • Today

    Today: A slight chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and noon. Patchy fog. Otherwise, partly sunny, with a high near 78. Southwest wind around 10 mph. Chance of precipitation is 20%.

    High: 78 °F

    Slight Chance
    T-storms and
    Patchy Fog
    then Patchy
    Fog

  • Tonight

    Tonight: Patchy fog. Otherwise, mostly cloudy, with a low around 68. Southwest wind around 8 mph.

    Low: 68 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 9am. Otherwise, partly sunny, with a high near 79. Southwest wind 7 to 10 mph.

    High: 79 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers between 3am and 5am, then a slight chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 69. Southwest wind around 10 mph. Chance of precipitation is 20%.

    Low: 69 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: A slight chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and 3pm. Partly sunny, with a high near 79. Southwest wind 13 to 15 mph. Chance of precipitation is 20%.

    High: 79 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: A slight chance of showers between 11pm and 1am. Partly cloudy, with a low around 70. Southwest wind around 14 mph. Chance of precipitation is 20%.

    Low: 70 °F

    Slight Chance
    Showers

  • Friday

    Friday: Sunny, with a high near 81. West wind around 11 mph.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 66. North wind around 7 mph.

    Low: 66 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 76. Northeast wind around 9 mph.

    High: 76 °F

    Sunny

Detailed Forecast

Today
A slight chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and noon. Patchy fog. Otherwise, partly sunny, with a high near 78. Southwest wind around 10 mph. Chance of precipitation is 20%.
Tonight
Patchy fog. Otherwise, mostly cloudy, with a low around 68. Southwest wind around 8 mph.
Wednesday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 79. Southwest wind 7 to 10 mph.
Wednesday Night
A slight chance of showers between 3am and 5am, then a slight chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 69. Southwest wind around 10 mph. Chance of precipitation is 20%.
Thursday
A slight chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and 3pm. Partly sunny, with a high near 79. Southwest wind 13 to 15 mph. Chance of precipitation is 20%.
Thursday Night
A slight chance of showers between 11pm and 1am. Partly cloudy, with a low around 70. Southwest wind around 14 mph. Chance of precipitation is 20%.
Friday
Sunny, with a high near 81. West wind around 11 mph.
Friday Night
Mostly cloudy, with a low around 66. North wind around 7 mph.
Saturday
Sunny, with a high near 76. Northeast wind around 9 mph.
Saturday Night
Partly cloudy, with a low around 66. East wind around 6 mph becoming southwest after midnight.
Sunday
Partly sunny, with a high near 78. South wind 6 to 9 mph.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 67. South wind around 9 mph. Chance of precipitation is 40%.
Monday
A chance of showers. Mostly sunny, with a high near 77. West wind around 11 mph becoming south in the afternoon. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles E Siasconset MA
 41.28°N 69.97°W (Elev. 56 ft)
Last Update:
7:45 am EDT Jul 15, 2025
Forecast Valid:
10am EDT Jul 15, 2025-6pm EDT Jul 21, 2025
 
Forecast Discussion
 
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Additional Resources

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