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.

Overcast

34°F

1°C

Humidity 70%
Wind Speed E 10 mph
Barometer 30.12 in (1019.9 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 16 Feb 6:53 am EST
Extended Forecast for

3 Miles NNE Siasconset MA

  • Washington's Birthday

    Washington's Birthday: A chance of flurries before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 36. East wind 13 to 17 mph.

    High: 36 °F

    Chance
    Flurries

  • Tonight

    Tonight: Partly cloudy, with a low around 31. North wind 8 to 14 mph.

    Low: 31 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of flurries between 1pm and 2pm. Partly sunny, with a high near 36. Northwest wind 5 to 9 mph becoming southwest in the afternoon.

    High: 36 °F

    Chance
    Flurries

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 33. West wind 7 to 9 mph.

    Low: 33 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of rain before noon, then a chance of snow between noon and 1pm, then rain likely after 1pm. Cloudy, with a high near 37. West wind around 7 mph becoming southeast in the afternoon. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 37 °F

    Slight Chance
    Rain then
    Rain/Snow
    Likely

  • Wednesday Night

    Wednesday Night: Rain likely before 11pm, then rain and snow likely between 11pm and 3am, then a chance of snow after 3am. Cloudy, with a low around 32. Southeast wind 9 to 14 mph becoming northwest in the evening. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 32 °F

    Rain/Snow
    Likely

  • Thursday

    Thursday: Partly sunny, with a high near 36. North wind 9 to 13 mph.

    High: 36 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 32. North wind around 7 mph.

    Low: 32 °F

    Partly Cloudy

  • Friday

    Friday: A chance of snow before noon, then a chance of rain and snow between noon and 3pm, then a chance of rain after 3pm. Mostly cloudy, with a high near 36. North wind 8 to 13 mph becoming east in the afternoon. Chance of precipitation is 50%.

    High: 36 °F

    Chance Snow
    then Chance
    Rain/Snow

Detailed Forecast

Washington's Birthday
A chance of flurries before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 36. East wind 13 to 17 mph.
Tonight
Partly cloudy, with a low around 31. North wind 8 to 14 mph.
Tuesday
A chance of flurries between 1pm and 2pm. Partly sunny, with a high near 36. Northwest wind 5 to 9 mph becoming southwest in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 33. West wind 7 to 9 mph.
Wednesday
A slight chance of rain before noon, then a chance of snow between noon and 1pm, then rain likely after 1pm. Cloudy, with a high near 37. West wind around 7 mph becoming southeast in the afternoon. Chance of precipitation is 60%. Little or no snow accumulation expected.
Wednesday Night
Rain likely before 11pm, then rain and snow likely between 11pm and 3am, then a chance of snow after 3am. Cloudy, with a low around 32. Southeast wind 9 to 14 mph becoming northwest in the evening. Chance of precipitation is 70%. Little or no snow accumulation expected.
Thursday
Partly sunny, with a high near 36. North wind 9 to 13 mph.
Thursday Night
Partly cloudy, with a low around 32. North wind around 7 mph.
Friday
A chance of snow before noon, then a chance of rain and snow between noon and 3pm, then a chance of rain after 3pm. Mostly cloudy, with a high near 36. North wind 8 to 13 mph becoming east in the afternoon. Chance of precipitation is 50%.
Friday Night
A chance of rain before 3am, then a chance of rain and snow. Cloudy, with a low around 33. East wind 13 to 16 mph. Chance of precipitation is 50%.
Saturday
A chance of rain and snow. Mostly cloudy, with a high near 37. Northeast wind 14 to 16 mph. Chance of precipitation is 40%.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 32. Northeast wind 11 to 13 mph. Chance of precipitation is 30%.
Sunday
A chance of rain. Mostly cloudy, with a high near 35. North wind 13 to 15 mph. Chance of precipitation is 30%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Siasconset MA
 41.33°N 69.98°W (Elev. 0 ft)
Last Update:
5:54 am EST Feb 16, 2026
Forecast Valid:
6am EST Feb 16, 2026-6pm EST Feb 22, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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