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 with Haze

50°F

10°C

Humidity 83%
Wind Speed SW 17 mph
Barometer 30.07 in (1018.1 mb)
Dewpoint 45°F (7°C)
Visibility 6.00 mi
Wind Chill44°F (7°C)
Last update 1 Apr 12:53 pm EDT
Extended Forecast for

3 Miles NNE Siasconset MA

  • This Afternoon

    This Afternoon: A chance of showers, mainly after 3pm. Mostly cloudy, with a high near 50. Breezy, with a southwest wind 17 to 20 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 50 °F

    Chance
    Showers and
    Breezy

  • Tonight

    Tonight: Showers. Patchy fog after 7pm. Low around 39. Northeast wind 8 to 18 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 39 °F

    Showers and
    Patchy Fog

  • Thursday

    Thursday: Showers likely, mainly before 1pm. Patchy fog. Otherwise, cloudy, with a high near 42. Breezy, with a northeast wind 18 to 20 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 42 °F

    Showers
    Likely and
    Patchy Fog

  • Thursday Night

    Thursday Night: Patchy fog before 9pm. Otherwise, cloudy, with a low around 40. East wind 8 to 15 mph.

    Low: 40 °F

    Patchy Fog
    then Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 49. Southwest wind 8 to 16 mph.

    High: 49 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 45. Breezy, with a southwest wind 18 to 21 mph.

    Low: 45 °F

    Mostly Cloudy
    and Breezy

  • Saturday

    Saturday: Partly sunny, with a high near 48. West wind 10 to 14 mph.

    High: 48 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 43. East wind 10 to 16 mph becoming south after midnight.

    Low: 43 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of showers after noon. Mostly cloudy, with a high near 52. Breezy, with a south wind 21 to 24 mph, with gusts as high as 34 mph. Chance of precipitation is 40%.

    High: 52 °F

    Breezy.
    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

This Afternoon
A chance of showers, mainly after 3pm. Mostly cloudy, with a high near 50. Breezy, with a southwest wind 17 to 20 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Showers. Patchy fog after 7pm. Low around 39. Northeast wind 8 to 18 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Showers likely, mainly before 1pm. Patchy fog. Otherwise, cloudy, with a high near 42. Breezy, with a northeast wind 18 to 20 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Patchy fog before 9pm. Otherwise, cloudy, with a low around 40. East wind 8 to 15 mph.
Friday
Mostly cloudy, with a high near 49. Southwest wind 8 to 16 mph.
Friday Night
Mostly cloudy, with a low around 45. Breezy, with a southwest wind 18 to 21 mph.
Saturday
Partly sunny, with a high near 48. West wind 10 to 14 mph.
Saturday Night
Mostly cloudy, with a low around 43. East wind 10 to 16 mph becoming south after midnight.
Sunday
A chance of showers after noon. Mostly cloudy, with a high near 52. Breezy, with a south wind 21 to 24 mph, with gusts as high as 34 mph. Chance of precipitation is 40%.
Sunday Night
Showers likely, mainly between 9pm and 5am. Mostly cloudy, with a low around 41. Breezy, with a southwest wind 18 to 23 mph. Chance of precipitation is 60%.
Monday
A chance of showers. Mostly sunny, with a high near 46. West wind 10 to 16 mph. Chance of precipitation is 40%.
Monday Night
Mostly clear, with a low around 39. North wind 8 to 10 mph.
Tuesday
Mostly sunny, with a high near 44. North wind 8 to 10 mph becoming east in the afternoon.
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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:
9:39 am EDT Apr 1, 2026
Forecast Valid:
1pm EDT Apr 1, 2026-6pm EDT Apr 7, 2026
 
Forecast Discussion
 
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Additional Resources

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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