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.

Overcast and Windy

40°F

4°C

Humidity 89%
Wind Speed N 26 G 38 mph
Barometer NA
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 3 Dec 5:53 am EST
Extended Forecast for

2 Miles ENE Siasconset MA

  • Today

    Today: Cloudy, then gradually becoming mostly sunny, with a high near 44. Breezy, with a northwest wind 15 to 20 mph decreasing to 7 to 12 mph in the afternoon.

    High: 44 °F

    Mostly Cloudy
    and Breezy
    then Partly
    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 37. West wind 5 to 11 mph.

    Low: 37 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 45. Breezy, with a west wind 16 to 23 mph.

    High: 45 °F

    Partly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 21. Blustery, with a northwest wind 16 to 25 mph, with gusts as high as 36 mph.

    Low: 21 °F

    Partly Cloudy
    and Blustery

  • Friday

    Friday: Mostly sunny, with a high near 39. Northwest wind 9 to 13 mph becoming southwest in the afternoon.

    High: 39 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A slight chance of snow before 9pm, then a chance of rain. Mostly cloudy, with a low around 30. Southwest wind 8 to 10 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 30 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Saturday

    Saturday: A chance of rain. Mostly cloudy, with a high near 44. East wind 8 to 10 mph becoming west in the afternoon. Chance of precipitation is 40%.

    High: 44 °F

    Chance Rain

  • Saturday Night

    Saturday Night: A chance of rain before 10pm. Mostly cloudy, with a low around 34. West wind 8 to 10 mph. Chance of precipitation is 30%.

    Low: 34 °F

    Chance Rain
    then Mostly
    Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 41. Northwest wind around 11 mph.

    High: 41 °F

    Partly Sunny

Detailed Forecast

Today
Cloudy, then gradually becoming mostly sunny, with a high near 44. Breezy, with a northwest wind 15 to 20 mph decreasing to 7 to 12 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 37. West wind 5 to 11 mph.
Thursday
Partly sunny, with a high near 45. Breezy, with a west wind 16 to 23 mph.
Thursday Night
Partly cloudy, with a low around 21. Blustery, with a northwest wind 16 to 25 mph, with gusts as high as 36 mph.
Friday
Mostly sunny, with a high near 39. Northwest wind 9 to 13 mph becoming southwest in the afternoon.
Friday Night
A slight chance of snow before 9pm, then a chance of rain. Mostly cloudy, with a low around 30. Southwest wind 8 to 10 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Saturday
A chance of rain. Mostly cloudy, with a high near 44. East wind 8 to 10 mph becoming west in the afternoon. Chance of precipitation is 40%.
Saturday Night
A chance of rain before 10pm. Mostly cloudy, with a low around 34. West wind 8 to 10 mph. Chance of precipitation is 30%.
Sunday
Partly sunny, with a high near 41. Northwest wind around 11 mph.
Sunday Night
Mostly cloudy, with a low around 29. North wind around 11 mph.
Monday
Partly sunny, with a high near 36. North wind 13 to 15 mph.
Monday Night
Mostly cloudy, with a low around 27. North wind 11 to 14 mph.
Tuesday
Partly sunny, with a high near 41. Northwest wind around 14 mph becoming southwest in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Siasconset MA
 41.28°N 69.97°W (Elev. 56 ft)
Last Update:
1:14 am EST Dec 3, 2025
Forecast Valid:
6am EST Dec 3, 2025-6pm EST Dec 9, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation