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.

Mostly Cloudy and Breezy

48°F

9°C

Humidity 71%
Wind Speed N 21 G 35 mph
Barometer 30.11 in (1019.5 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 28 Apr 4:53 pm EDT
Extended Forecast for

3 Miles NNE Siasconset MA

  • Tonight

    Tonight: Patchy drizzle between 10pm and 1am, then patchy drizzle with a chance of showers after 1am. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 45. North wind 11 to 15 mph. Chance of precipitation is 30%.

    Low: 45 °F

    Chance
    Showers and
    Patchy Fog

  • Wednesday

    Wednesday: A slight chance of showers after 2pm. Patchy fog before noon, then patchy fog after 1pm. Otherwise, mostly cloudy, with a high near 51. North wind 9 to 11 mph. Chance of precipitation is 20%.

    High: 51 °F

    Patchy Fog
    then Slight
    Chance
    Showers and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: Showers likely, mainly after 2am. Patchy fog. Otherwise, cloudy, with a low around 47. Southeast wind 9 to 11 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 47 °F

    Showers
    Likely and
    Patchy Fog

  • Thursday

    Thursday: Showers, mainly before 5pm. Patchy fog before 9am. High near 53. Southeast wind 11 to 14 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 53 °F

    Showers and
    Patchy Fog

  • Thursday Night

    Thursday Night: A chance of showers, mainly before 10pm. Mostly cloudy, with a low around 47. West wind 10 to 14 mph. Chance of precipitation is 30%.

    Low: 47 °F

    Chance
    Showers

  • Friday

    Friday: Sunny, with a high near 52. West wind 15 to 17 mph.

    High: 52 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 46. West wind 11 to 15 mph.

    Low: 46 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 51. Southwest wind around 11 mph.

    High: 51 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers between 9pm and 3am. Mostly cloudy, with a low around 44. Southwest wind around 10 mph becoming northwest after midnight. Chance of precipitation is 30%.

    Low: 44 °F

    Chance
    Showers

Detailed Forecast

Tonight
Patchy drizzle between 10pm and 1am, then patchy drizzle with a chance of showers after 1am. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 45. North wind 11 to 15 mph. Chance of precipitation is 30%.
Wednesday
A slight chance of showers after 2pm. Patchy fog before noon, then patchy fog after 1pm. Otherwise, mostly cloudy, with a high near 51. North wind 9 to 11 mph. Chance of precipitation is 20%.
Wednesday Night
Showers likely, mainly after 2am. Patchy fog. Otherwise, cloudy, with a low around 47. Southeast wind 9 to 11 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Showers, mainly before 5pm. Patchy fog before 9am. High near 53. Southeast wind 11 to 14 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
A chance of showers, mainly before 10pm. Mostly cloudy, with a low around 47. West wind 10 to 14 mph. Chance of precipitation is 30%.
Friday
Sunny, with a high near 52. West wind 15 to 17 mph.
Friday Night
Partly cloudy, with a low around 46. West wind 11 to 15 mph.
Saturday
Mostly sunny, with a high near 51. Southwest wind around 11 mph.
Saturday Night
A chance of showers between 9pm and 3am. Mostly cloudy, with a low around 44. Southwest wind around 10 mph becoming northwest after midnight. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 51. West wind 10 to 13 mph.
Sunday Night
Mostly clear, with a low around 47. West wind 11 to 13 mph.
Monday
Sunny, with a high near 53. Southwest wind 11 to 15 mph.
Monday Night
Partly cloudy, with a low around 47. West wind 13 to 15 mph.
Tuesday
Mostly sunny, with a high near 54. South wind 10 to 13 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Siasconset MA
 41.33°N 69.98°W (Elev. 0 ft)
Last Update:
2:01 pm EDT Apr 28, 2026
Forecast Valid:
4pm EDT Apr 28, 2026-6pm EDT May 5, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

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Chance of Precipitation