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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Siasconset MA

  • Overnight

    Overnight: Mostly clear, with a low around 47. Northwest wind 11 to 13 mph, with gusts as high as 24 mph.

    Low: 47 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 60. West wind 11 to 15 mph, with gusts as high as 26 mph.

    High: 60 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 47. West wind 11 to 15 mph, with gusts as high as 26 mph.

    Low: 47 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: Increasing clouds, with a high near 56. Northwest wind 7 to 14 mph.

    High: 56 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 47. Calm wind becoming east around 5 mph after midnight.

    Low: 47 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of rain, mainly after 2pm. Mostly cloudy, with a high near 56. East wind 8 to 15 mph. Chance of precipitation is 40%.

    High: 56 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday Night

    Thursday Night: Rain. Low around 45. Northeast wind 16 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 80%.

    Low: 45 °F

    Rain

  • Friday

    Friday: Rain. Patchy fog before 8am. High near 54. Breezy, with a northeast wind 18 to 20 mph. Chance of precipitation is 90%.

    High: 54 °F

    Rain and
    Patchy Fog

  • Friday Night

    Friday Night: Rain. Low around 41. North wind 15 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 80%.

    Low: 41 °F

    Rain

Detailed Forecast

Overnight
Mostly clear, with a low around 47. Northwest wind 11 to 13 mph, with gusts as high as 24 mph.
Tuesday
Sunny, with a high near 60. West wind 11 to 15 mph, with gusts as high as 26 mph.
Tuesday Night
Mostly clear, with a low around 47. West wind 11 to 15 mph, with gusts as high as 26 mph.
Veterans Day
Increasing clouds, with a high near 56. Northwest wind 7 to 14 mph.
Wednesday Night
Mostly cloudy, with a low around 47. Calm wind becoming east around 5 mph after midnight.
Thursday
A chance of rain, mainly after 2pm. Mostly cloudy, with a high near 56. East wind 8 to 15 mph. Chance of precipitation is 40%.
Thursday Night
Rain. Low around 45. Northeast wind 16 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 80%.
Friday
Rain. Patchy fog before 8am. High near 54. Breezy, with a northeast wind 18 to 20 mph. Chance of precipitation is 90%.
Friday Night
Rain. Low around 41. North wind 15 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 80%.
Saturday
Rain likely, mainly before 2pm. Mostly cloudy, with a high near 51. Northwest wind around 18 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 40. Northwest wind 15 to 17 mph. Chance of precipitation is 50%.
Sunday
A chance of rain. Partly sunny, with a high near 51. Northwest wind 15 to 17 mph. Chance of precipitation is 30%.
Sunday Night
Mostly cloudy, with a low around 41. Northwest wind 11 to 15 mph.
Monday
Mostly sunny, with a high near 51. Northwest wind 9 to 13 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Siasconset MA
 41.26°N 70°W (Elev. 52 ft)
Last Update:
1:33 am EST Nov 10, 2026
Forecast Valid:
3am EST Nov 10, 2026-6pm EST Nov 16, 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