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.

Fair

35°F

2°C

Humidity 40%
Wind Speed N 13 mph
Barometer 30.37 in (1028.2 mb)
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 28 Mar 3:53 pm EDT
Extended Forecast for

6 Miles N Siasconset MA

  • Tonight

    Tonight: Partly cloudy, with a low around 28. Light and variable wind becoming northwest 9 to 14 mph in the evening.

    Low: 28 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 44. Northwest wind 10 to 18 mph becoming southwest in the afternoon.

    High: 44 °F

    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 42. Southwest wind around 18 mph.

    Low: 42 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly cloudy, with a high near 52. Breezy, with a southwest wind 20 to 24 mph.

    High: 52 °F

    Mostly Cloudy
    and Breezy

  • Monday Night

    Monday Night: A slight chance of rain after 2am. Mostly cloudy, with a low around 45. Breezy, with a southwest wind 16 to 22 mph. Chance of precipitation is 20%.

    Low: 45 °F

    Mostly Cloudy
    and Breezy
    then Slight
    Chance Rain

  • Tuesday

    Tuesday: A slight chance of rain before 8am, then a slight chance of showers between 8am and 11am. Partly sunny, with a high near 50. Breezy, with a southwest wind 16 to 22 mph. Chance of precipitation is 20%.

    High: 50 °F

    Slight Chance
    Rain then
    Partly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 47. Windy, with a southwest wind 25 to 29 mph.

    Low: 47 °F

    Mostly Cloudy
    and Windy

  • Wednesday

    Wednesday: Partly sunny, with a high near 50. Windy, with a southwest wind 24 to 29 mph.

    High: 50 °F

    Partly Sunny
    and Windy

  • Wednesday Night

    Wednesday Night: Rain likely, mainly after 11pm. Mostly cloudy, with a low around 38. Southwest wind around 18 mph becoming north after midnight. Chance of precipitation is 60%.

    Low: 38 °F

    Rain Likely

Detailed Forecast

Tonight
Partly cloudy, with a low around 28. Light and variable wind becoming northwest 9 to 14 mph in the evening.
Sunday
Sunny, with a high near 44. Northwest wind 10 to 18 mph becoming southwest in the afternoon.
Sunday Night
Increasing clouds, with a low around 42. Southwest wind around 18 mph.
Monday
Mostly cloudy, with a high near 52. Breezy, with a southwest wind 20 to 24 mph.
Monday Night
A slight chance of rain after 2am. Mostly cloudy, with a low around 45. Breezy, with a southwest wind 16 to 22 mph. Chance of precipitation is 20%.
Tuesday
A slight chance of rain before 8am, then a slight chance of showers between 8am and 11am. Partly sunny, with a high near 50. Breezy, with a southwest wind 16 to 22 mph. Chance of precipitation is 20%.
Tuesday Night
Mostly cloudy, with a low around 47. Windy, with a southwest wind 25 to 29 mph.
Wednesday
Partly sunny, with a high near 50. Windy, with a southwest wind 24 to 29 mph.
Wednesday Night
Rain likely, mainly after 11pm. Mostly cloudy, with a low around 38. Southwest wind around 18 mph becoming north after midnight. Chance of precipitation is 60%.
Thursday
Rain and snow likely before 5pm, then a chance of rain. Mostly cloudy, with a high near 41. Breezy, with a northeast wind around 21 mph. Chance of precipitation is 60%.
Thursday Night
A chance of rain and snow. Cloudy, with a low around 37. Breezy, with a northeast wind 20 to 23 mph. Chance of precipitation is 40%.
Friday
Rain and snow likely. Mostly cloudy, with a high near 43. Breezy, with an east wind around 24 mph. Chance of precipitation is 60%.
Friday Night
Rain likely. Cloudy, with a low around 39. Breezy, with a northeast wind 20 to 22 mph. Chance of precipitation is 60%.
Saturday
A chance of rain. Mostly cloudy, with a high near 45. Northeast wind 15 to 18 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:
6 Miles N Siasconset MA
 41.35°N 70.01°W (Elev. 0 ft)
Last Update:
2:56 pm EDT Mar 28, 2026
Forecast Valid:
4pm EDT Mar 28, 2026-6pm EDT Apr 4, 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