Current conditions at

Nantucket, Nantucket Memorial Airport (KACK)

Lat: 41.25°NLon: 70.06°WElev: 46ft.

Overcast

39°F

4°C

Humidity 79%
Wind Speed N 18 G 31 mph
Barometer 30.27 in (1024.9 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 21 Apr 3:53 am EDT
Extended Forecast for

3 Miles NNE Siasconset MA

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 44. Northeast wind 6 to 15 mph.

    High: 44 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Partly cloudy, with a low around 37. Southeast wind around 8 mph becoming southwest after midnight.

    Low: 37 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Rain likely, mainly after 2pm.  Mostly cloudy, with a high near 45. South wind 13 to 17 mph.  Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 45 °F

    Slight Chance
    Rain then
    Rain Likely

  • Wednesday Night

    Wednesday Night: A chance of rain, mainly before 9pm.  Cloudy, with a low around 43. Southeast wind 7 to 16 mph.  Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Chance Rain

  • Thursday

    Thursday: A slight chance of showers before 9am, then a slight chance of showers after 4pm.  Partly sunny, with a high near 49. East wind 6 to 9 mph becoming west in the afternoon.  Chance of precipitation is 20%.

    High: 49 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 43. Northwest wind around 8 mph.

    Low: 43 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 48. North wind around 9 mph.

    High: 48 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 43. Northeast wind around 6 mph becoming northwest after midnight.

    Low: 43 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 48. Northeast wind around 8 mph.

    High: 48 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 44. Northeast wind 6 to 15 mph.
Tonight
Partly cloudy, with a low around 37. Southeast wind around 8 mph becoming southwest after midnight.
Wednesday
Rain likely, mainly after 2pm. Mostly cloudy, with a high near 45. South wind 13 to 17 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A chance of rain, mainly before 9pm. Cloudy, with a low around 43. Southeast wind 7 to 16 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A slight chance of showers before 9am, then a slight chance of showers after 4pm. Partly sunny, with a high near 49. East wind 6 to 9 mph becoming west in the afternoon. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 43. Northwest wind around 8 mph.
Friday
Mostly sunny, with a high near 48. North wind around 9 mph.
Friday Night
Mostly clear, with a low around 43. Northeast wind around 6 mph becoming northwest after midnight.
Saturday
Mostly sunny, with a high near 48. Northeast wind around 8 mph.
Saturday Night
Mostly cloudy, with a low around 44. East wind around 6 mph.
Sunday
Partly sunny, with a high near 49. Northeast wind around 10 mph.
Sunday Night
Mostly cloudy, with a low around 45. Northeast wind 9 to 11 mph.
Monday
Mostly sunny, with a high near 50. Northeast wind 11 to 13 mph.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Siasconset MA
 41.33°N 69.98°W (Elev. 0 ft)
3:59 am EDT Apr 21, 2026
4am EDT Apr 21, 2026-6pm EDT Apr 27, 2026
 
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