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.

Fog

42°F

6°C

Humidity 96%
Wind Speed SW 10 mph
Barometer 30.03 in (1017.0 mb)
Dewpoint 41°F (5°C)
Visibility 0.50 mi
Wind Chill36°F (2°C)
Last update 10 Mar 6:53 pm EDT
Extended Forecast for

3 Miles NNE Siasconset MA

  • Tonight

    Tonight: Patchy fog. Otherwise, mostly cloudy, with a low around 39. Southwest wind 7 to 9 mph.

    Low: 39 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 1pm. Otherwise, mostly cloudy, with a high near 47. South wind 5 to 10 mph.

    High: 47 °F

    Patchy Fog

  • Wednesday Night

    Wednesday Night: A slight chance of rain before 8pm, then a slight chance of rain after midnight. Patchy fog after 7pm. Otherwise, cloudy, with a low around 44. Breezy, with a south wind 16 to 24 mph. Chance of precipitation is 20%.

    Low: 44 °F

    Patchy Fog
    and Breezy
    then Slight
    Chance Rain
    and Patchy
    Fog

  • Thursday

    Thursday: Rain likely, mainly after 5pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 48. Breezy, with a southwest wind 20 to 24 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 48 °F

    Rain Likely
    and Patchy
    Fog

  • Thursday Night

    Thursday Night: A chance of rain, mainly before 8pm. Partly cloudy, with a low around 33. Breezy, with a northwest wind 16 to 20 mph. Chance of precipitation is 30%.

    Low: 33 °F

    Chance Rain
    then Mostly
    Clear and
    Breezy

  • Friday

    Friday: Mostly sunny, with a high near 43. West wind 10 to 15 mph becoming southwest in the afternoon.

    High: 43 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of rain after 11pm. Mostly cloudy, with a low around 38. Windy, with a south wind 18 to 26 mph. Chance of precipitation is 30%.

    Low: 38 °F

    Chance Rain
    and Windy

  • Saturday

    Saturday: Sunny, with a high near 42. Windy, with a west wind 24 to 28 mph.

    High: 42 °F

    Sunny and
    Windy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 34. West wind 11 to 16 mph.

    Low: 34 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog. Otherwise, mostly cloudy, with a low around 39. Southwest wind 7 to 9 mph.
Wednesday
Patchy fog before 1pm. Otherwise, mostly cloudy, with a high near 47. South wind 5 to 10 mph.
Wednesday Night
A slight chance of rain before 8pm, then a slight chance of rain after midnight. Patchy fog after 7pm. Otherwise, cloudy, with a low around 44. Breezy, with a south wind 16 to 24 mph. Chance of precipitation is 20%.
Thursday
Rain likely, mainly after 5pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 48. Breezy, with a southwest wind 20 to 24 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A chance of rain, mainly before 8pm. Partly cloudy, with a low around 33. Breezy, with a northwest wind 16 to 20 mph. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 43. West wind 10 to 15 mph becoming southwest in the afternoon.
Friday Night
A chance of rain after 11pm. Mostly cloudy, with a low around 38. Windy, with a south wind 18 to 26 mph. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 42. Windy, with a west wind 24 to 28 mph.
Saturday Night
Partly cloudy, with a low around 34. West wind 11 to 16 mph.
Sunday
Mostly cloudy, with a high near 45. North wind 8 to 14 mph becoming southeast in the afternoon.
Sunday Night
Rain likely. Cloudy, with a low around 40. Windy, with a southeast wind 18 to 23 mph increasing to 24 to 29 mph after midnight. Chance of precipitation is 60%.
Monday
Rain. High near 49. Windy, with a south wind around 32 mph, with gusts as high as 44 mph. Chance of precipitation is 80%.
Monday Night
Rain likely. Mostly cloudy, with a low around 31. Windy, with a southwest wind 24 to 28 mph becoming west after midnight. Chance of precipitation is 60%.
Tuesday
A chance of rain. Mostly sunny, with a high near 36. Breezy, with a west wind 15 to 21 mph. Chance of precipitation is 30%.
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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:
4:02 pm EDT Mar 10, 2026
Forecast Valid:
7pm EDT Mar 10, 2026-6pm EDT Mar 17, 2026
 
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Additional Resources

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