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

47°F

8°C

Humidity 100%
Wind Speed SW 15 G 25 mph
Barometer NA
Dewpoint 47°F (8°C)
Visibility 0.50 mi
Wind Chill41°F (5°C)
Last update 11 Jan 3:53 am EST
Extended Forecast for

3 Miles NNE Siasconset MA

  • Overnight

    Overnight: Rain. Patchy fog. Low around 38. Breezy, with a southwest wind around 20 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Rain and
    Patchy Fog

  • Sunday

    Sunday: Rain likely, mainly before 2pm. Patchy fog. Otherwise, cloudy, with a high near 43. West wind 11 to 18 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 43 °F

    Rain Likely
    and Patchy
    Fog

  • Sunday Night

    Sunday Night: A slight chance of rain before 10pm. Partly cloudy, with a low around 30. Windy, with a west wind 24 to 30 mph, with gusts as high as 40 mph. Chance of precipitation is 20%.

    Low: 30 °F

    Windy. Slight
    Chance Rain
    then Partly
    Cloudy

  • Monday

    Monday: Sunny, with a high near 38. Windy, with a west wind 23 to 28 mph decreasing to 17 to 22 mph in the afternoon. Winds could gust as high as 39 mph.

    High: 38 °F

    Sunny and
    Windy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 36. West wind 14 to 16 mph.

    Low: 36 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 41. West wind around 14 mph.

    High: 41 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 39. Southwest wind 13 to 18 mph.

    Low: 39 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Cloudy, with a high near 45. Breezy, with a southwest wind 15 to 20 mph.

    High: 45 °F

    Mostly Cloudy
    and Breezy
    then Cloudy

  • Wednesday Night

    Wednesday Night: A chance of rain after 8pm. Cloudy, with a low around 36. Southwest wind 9 to 11 mph. Chance of precipitation is 40%.

    Low: 36 °F

    Chance Rain

Detailed Forecast

Overnight
Rain. Patchy fog. Low around 38. Breezy, with a southwest wind around 20 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Rain likely, mainly before 2pm. Patchy fog. Otherwise, cloudy, with a high near 43. West wind 11 to 18 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
A slight chance of rain before 10pm. Partly cloudy, with a low around 30. Windy, with a west wind 24 to 30 mph, with gusts as high as 40 mph. Chance of precipitation is 20%.
Monday
Sunny, with a high near 38. Windy, with a west wind 23 to 28 mph decreasing to 17 to 22 mph in the afternoon. Winds could gust as high as 39 mph.
Monday Night
Partly cloudy, with a low around 36. West wind 14 to 16 mph.
Tuesday
Sunny, with a high near 41. West wind around 14 mph.
Tuesday Night
Mostly cloudy, with a low around 39. Southwest wind 13 to 18 mph.
Wednesday
Cloudy, with a high near 45. Breezy, with a southwest wind 15 to 20 mph.
Wednesday Night
A chance of rain after 8pm. Cloudy, with a low around 36. Southwest wind 9 to 11 mph. Chance of precipitation is 40%.
Thursday
A chance of rain. Mostly cloudy, with a high near 40. West wind 9 to 14 mph. Chance of precipitation is 40%.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 28. Blustery, with a north wind 14 to 21 mph. Chance of precipitation is 40%.
Friday
A chance of snow. Partly sunny, with a high near 34. Breezy, with a northwest wind 17 to 23 mph. Chance of precipitation is 30%.
Friday Night
Mostly cloudy, with a low around 29. West wind 13 to 16 mph.
Saturday
Mostly sunny, with a high near 37. West wind 11 to 15 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:
12:18 am EST Jan 11, 2026
Forecast Valid:
4am EST Jan 11, 2026-6pm EST Jan 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation