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Siasconset, Massachusetts Weather Forecast
Siasconset, Massachusetts Weather
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Weather Forecast for Siasconset, Massachusetts : Nantucket County
Issued: 6:44 pm EST Dec 7, 2025 Latitude: 41.2626228 Longitude: -69.9661245 View on Google Maps

MouseOver for Detail Forecast
Overnight Monday Tuesday Wednesday Thursday Friday Saturday Sunday
Cloudy on Overnight Mostly Sunny on Monday Increasing Clouds on Tuesday 30% chance of rain on Wednesday Partly Sunny on Thursday 40% chance of rain on Friday 50% chance of rain & snow on Saturday 40% chance of snow on Sunday
Low: 26°F High: 33°F High: 45°F High: 50°F High: 45°F High: 39°F High: 39°F High: 35°F
Low: 20°F Low: 35°F Low: 39°F Low: 31°F Low: 30°F Low: 26°F  
Cloudy Mostly Sunny Increasing Clouds Rain Partly Sunny Rain Rain & Snow Snow
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Current Conditions at
NANTUCKET - (KACK)
41°
Feels like 31°F
Cloudy
as of 11:53 PM EST
Rel. Humidity: 60%
Dew Point: 28°F
Visibility: 10 Miles
Flight Rule: VFR
Wind Data
23 MPH
Gust: 32 MPH
280° West
Cloud Level(s): Broken at 3100ft, Solid Overcast at 4100ft
Current Conditions at
CHATHAM - (KCQX)
37°
Cloudy
as of 11:52 PM EST
Rel. Humidity: 69%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 29.94 in.
Flight Rule: VFR
Wind Data
8 MPH
270° West
Cloud Level(s): Solid Overcast at 3600ft
Current Conditions at
HYANNIS - (KHYA)
37°
Feels like 29°F
Mostly Cloudy
as of 11:56 PM EST
Rel. Humidity: 60%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 29.93 in.
Flight Rule: VFR
Wind Data
12 MPH
Gust: 18 MPH
270° West
Cloud Level(s): Broken at 4000ft
Current Conditions at
MARTHAS VINEYARD - (KMVY)
37°
Feels like 28°F
Partly Cloudy
as of 11:53 PM EST
Rel. Humidity: 55%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 29.95 in.
Flight Rule: VFR
Wind Data
14 MPH
Gust: 21 MPH
280° West
Cloud Level(s): Scattered at 4000ft
Cloudy on Overnight Overnight... Partly cloudy, with a low around 26. Northwest wind 14 to 18 mph.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 33. Breezy, with a north wind 18 to 22 mph.
Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 20. North wind 10 to 15 mph.
Increasing Clouds on Tuesday Tuesday... Increasing clouds, with a high near 45. North wind 7 to 10 mph becoming south in the afternoon.
30% chance of rain Tuesday Night Tuesday Night... A chance of rain, mainly between 9pm and 4am. Cloudy, with a low around 35. South wind 14 to 16 mph. Chance of precipitation is 30%.
30% chance of rain Wednesday Wednesday... A slight chance of rain before 9am, then a chance of rain after noon. Mostly cloudy, with a high near 50. Southwest wind 15 to 18 mph. Chance of precipitation is 30%.
40% chance of rain Wednesday Night Wednesday Night... A chance of rain before 3am. Mostly cloudy, with a low around 39. Southwest wind around 18 mph. Chance of precipitation is 40%.
Partly Sunny on Thursday Thursday... Partly sunny, with a high near 45. West wind 16 to 18 mph.
Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 31. West wind 11 to 14 mph.
40% chance of rain Friday Friday... A chance of rain. Partly sunny, with a high near 39. West wind 11 to 14 mph. Chance of precipitation is 40%.
40% chance of rain Friday Night Friday Night... A chance of rain. Mostly cloudy, with a low around 30. West wind around 14 mph. Chance of precipitation is 40%.
50% chance of rain & snow Saturday Saturday... A chance of rain and snow. Partly sunny, with a high near 39. West wind 14 to 18 mph. Chance of precipitation is 50%.
50% chance of rain & snow Saturday Night Saturday Night... A chance of rain and snow. Mostly cloudy, with a low around 26. Breezy, with a west wind 18 to 20 mph. Chance of precipitation is 50%.
40% chance of snow Sunday Sunday... A chance of snow. Partly sunny, with a high near 35. Breezy, with a west wind 18 to 20 mph. Chance of precipitation is 40%.
Current Radar Image


Sun Almanac for Siasconset, Massachusetts
Sunrise: 06:53 AM
Sunset: 4:11 PM
Civil Sunrise:06:22 AM
Civil Sunset: 4:42 PM
Nautical Sunrise: 05:48 AM
Nautical Sunset: 5:16 PM
Astro Sunrise: 05:14 AM
Astro Sunset: 5:50 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.