National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Nantucket, Nantucket Memorial Airport (KACK)

Lat: 41.25°NLon: 70.06°WElev: 46ft.

Light Rain Fog/Mist

47°F

8°C

Humidity 93%
Wind Speed SE 15 mph
Barometer 29.88 in (1011.9 mb)
Dewpoint 45°F (7°C)
Visibility 3.00 mi
Wind Chill41°F (5°C)
Last update 2 Dec 1:53 pm EST
Extended Forecast for

2 Miles ENE Siasconset MA

  • This Afternoon

    This Afternoon: Rain. High near 47. East wind 10 to 14 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 47 °F

    Rain

  • Tonight

    Tonight: Rain, mainly before 3am. Low around 39. Breezy, with an east wind 18 to 24 mph becoming northwest after midnight. Winds could gust as high as 39 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    Low: 39 °F

    Rain and
    Breezy

  • Wednesday

    Wednesday: Cloudy, then gradually becoming mostly sunny, with a high near 44. Breezy, with a northwest wind 16 to 21 mph decreasing to 7 to 12 mph in the afternoon. Winds could gust as high as 36 mph.

    High: 44 °F

    Cloudy and
    Breezy then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 38. Southwest wind 5 to 13 mph.

    Low: 38 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 45. Breezy, with a west wind 14 to 20 mph, with gusts as high as 33 mph.

    High: 45 °F

    Partly Sunny
    then Mostly
    Cloudy and
    Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 22. Blustery, with a northwest wind 13 to 23 mph, with gusts as high as 38 mph.

    Low: 22 °F

    Partly Cloudy
    and Blustery

  • Friday

    Friday: Mostly sunny, with a high near 37. North wind 9 to 11 mph becoming southwest in the afternoon. Winds could gust as high as 22 mph.

    High: 37 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of rain and snow between 10pm and 2am, then a chance of rain after 2am. Mostly cloudy, with a low around 31. Southwest wind around 9 mph. Chance of precipitation is 40%.

    Low: 31 °F

    Chance
    Rain/Snow

  • Saturday

    Saturday: A chance of rain. Mostly cloudy, with a high near 44. East wind 9 to 11 mph becoming west in the afternoon. Chance of precipitation is 50%.

    High: 44 °F

    Chance Rain

Detailed Forecast

This Afternoon
Rain. High near 47. East wind 10 to 14 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Tonight
Rain, mainly before 3am. Low around 39. Breezy, with an east wind 18 to 24 mph becoming northwest after midnight. Winds could gust as high as 39 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Wednesday
Cloudy, then gradually becoming mostly sunny, with a high near 44. Breezy, with a northwest wind 16 to 21 mph decreasing to 7 to 12 mph in the afternoon. Winds could gust as high as 36 mph.
Wednesday Night
Mostly cloudy, with a low around 38. Southwest wind 5 to 13 mph.
Thursday
Partly sunny, with a high near 45. Breezy, with a west wind 14 to 20 mph, with gusts as high as 33 mph.
Thursday Night
Partly cloudy, with a low around 22. Blustery, with a northwest wind 13 to 23 mph, with gusts as high as 38 mph.
Friday
Mostly sunny, with a high near 37. North wind 9 to 11 mph becoming southwest in the afternoon. Winds could gust as high as 22 mph.
Friday Night
A chance of rain and snow between 10pm and 2am, then a chance of rain after 2am. Mostly cloudy, with a low around 31. Southwest wind around 9 mph. Chance of precipitation is 40%.
Saturday
A chance of rain. Mostly cloudy, with a high near 44. East wind 9 to 11 mph becoming west in the afternoon. Chance of precipitation is 50%.
Saturday Night
Mostly cloudy, with a low around 34. West wind 8 to 10 mph.
Sunday
Partly sunny, with a high near 40. Northwest wind 11 to 13 mph.
Sunday Night
Mostly cloudy, with a low around 28. North wind 11 to 13 mph.
Monday
Partly sunny, with a high near 34. North wind around 14 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Siasconset MA
 41.28°N 69.97°W (Elev. 56 ft)
Last Update:
2:18 pm EST Dec 2, 2025
Forecast Valid:
2pm EST Dec 2, 2025-6pm EST Dec 8, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation