Current conditions at

Nantucket, Nantucket Memorial Airport (KACK)

Lat: 41.25°NLon: 70.06°WElev: 46ft.

Overcast and Windy

27°F

-3°C

Humidity 75%
Wind Speed N 36 G 51 mph
Barometer 29.51 in (999.3 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill10°F (-12°C)
Last update 1 Feb 2:53 pm EST
Extended Forecast for

Siasconset MA

Coastal Flood Advisory February 1, 03:50pm until February 2, 02:00pm
High Wind Warning February 1, 03:50pm until February 1, 07:00pm
Click here for hazard details and duration
Coastal Flood Advisory
High Wind Warning
  •  
    Coastal Flood Advisory February 1, 03:50pm until February 2, 02:00pm
    High Wind Warning February 1, 03:50pm until February 1, 07:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • This Afternoon

    High: 31 °F

    Chance Snow
    Showers and
    Blustery

  • Tonight

    Tonight: Cloudy, with a low around 22. Blustery, with a north wind 14 to 23 mph, with gusts as high as 43 mph.

    Low: 22 °F

    Cloudy and
    Blustery then
    Mostly Cloudy

  • Monday

    Monday: Cloudy, then gradually becoming mostly sunny, with a high near 29. Northwest wind 8 to 13 mph.

    High: 29 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Mostly clear, with a low around 23. Northwest wind around 7 mph.

    Low: 23 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 33. West wind around 7 mph.

    High: 33 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 26. West wind around 6 mph.

    Low: 26 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 32. West wind 6 to 9 mph.

    High: 32 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 22. Northwest wind around 9 mph.

    Low: 22 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
A chance of snow showers, mainly before 5pm. Cloudy, with a high near 31. Blustery, with a north wind around 25 mph, with gusts as high as 55 mph. Chance of precipitation is 30%. Total daytime snow accumulation of 1 to 2 inches possible.
Tonight
Cloudy, with a low around 22. Blustery, with a north wind 14 to 23 mph, with gusts as high as 43 mph.
Monday
Cloudy, then gradually becoming mostly sunny, with a high near 29. Northwest wind 8 to 13 mph.
Monday Night
Mostly clear, with a low around 23. Northwest wind around 7 mph.
Tuesday
Sunny, with a high near 33. West wind around 7 mph.
Tuesday Night
Mostly cloudy, with a low around 26. West wind around 6 mph.
Wednesday
Partly sunny, with a high near 32. West wind 6 to 9 mph.
Wednesday Night
Partly cloudy, with a low around 22. Northwest wind around 9 mph.
Thursday
Mostly sunny, with a high near 29. Northwest wind 7 to 9 mph.
Thursday Night
Partly cloudy, with a low around 22. Northwest wind around 8 mph.
Friday
Partly sunny, with a high near 33. Southwest wind 9 to 11 mph.
Friday Night
A chance of snow. Mostly cloudy, with a low around 18. West wind 10 to 14 mph. Chance of precipitation is 50%.
Saturday
A chance of snow. Mostly cloudy, with a high near 25. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 10. Blustery, with a northwest wind around 22 mph, with gusts as high as 36 mph. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 22. Blustery.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Siasconset MA
 41.28°N 70°W (Elev. 49 ft)
1:13 pm EST Feb 1, 2026
3pm EST Feb 1, 2026-6pm EST Feb 8, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database