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

48°F

9°C

Humidity 96%
Wind Speed SW 20 mph
Barometer 30.12 in (1019.8 mb)
Dewpoint 47°F (8°C)
Visibility 8.00 mi
Wind Chill41°F (5°C)
Last update 3 Apr 11:53 pm EDT
Extended Forecast for

2 Miles ENE Siasconset MA

  • Overnight

    Overnight: Patchy drizzle. The drizzle could be heavy at times. Patchy dense fog. Otherwise, cloudy, with a low around 42. Southwest wind around 17 mph.

    Low: 42 °F

    Patchy
    Drizzle and
    Patchy Dense
    Fog

  • Saturday

    Saturday: Patchy drizzle before 9am. Patchy fog before 10am. Otherwise, increasing clouds, with a high near 51. West wind 9 to 14 mph becoming northeast in the afternoon.

    High: 51 °F

    Patchy
    Drizzle and
    Patchy Fog
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers after 10pm. Patchy fog after 1am. Otherwise, cloudy, with a low around 39. East wind 11 to 13 mph. Chance of precipitation is 20%.

    Low: 39 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Sunday

    Sunday: Showers, mainly after 3pm. Patchy fog after 3pm. High near 52. Breezy, with a southwest wind 15 to 22 mph, with gusts as high as 37 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 52 °F

    Slight Chance
    Showers and
    Breezy then
    Showers and
    Patchy Fog

  • Sunday Night

    Sunday Night: Showers, mainly before 8pm. Patchy fog before 8pm. Low around 40. Southwest wind 10 to 16 mph becoming northwest after midnight. Chance of precipitation is 80%.

    Low: 40 °F

    Showers and
    Patchy Fog
    then Chance
    Showers

  • Monday

    Monday: Sunny, with a high near 47. West wind 13 to 16 mph.

    High: 47 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 39. West wind 7 to 14 mph.

    Low: 39 °F

    Mostly Clear

  • Tuesday

    Tuesday: A chance of rain showers after 11am, mixing with snow after 5pm. Mostly sunny, with a high near 45. Southwest wind 7 to 11 mph. Chance of precipitation is 30%.

    High: 45 °F

    Chance
    Showers then
    Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 33. North wind 9 to 14 mph.

    Low: 33 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy drizzle. The drizzle could be heavy at times. Patchy dense fog. Otherwise, cloudy, with a low around 42. Southwest wind around 17 mph.
Saturday
Patchy drizzle before 9am. Patchy fog before 10am. Otherwise, increasing clouds, with a high near 51. West wind 9 to 14 mph becoming northeast in the afternoon.
Saturday Night
A slight chance of showers after 10pm. Patchy fog after 1am. Otherwise, cloudy, with a low around 39. East wind 11 to 13 mph. Chance of precipitation is 20%.
Sunday
Showers, mainly after 3pm. Patchy fog after 3pm. High near 52. Breezy, with a southwest wind 15 to 22 mph, with gusts as high as 37 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Showers, mainly before 8pm. Patchy fog before 8pm. Low around 40. Southwest wind 10 to 16 mph becoming northwest after midnight. Chance of precipitation is 80%.
Monday
Sunny, with a high near 47. West wind 13 to 16 mph.
Monday Night
Mostly clear, with a low around 39. West wind 7 to 14 mph.
Tuesday
A chance of rain showers after 11am, mixing with snow after 5pm. Mostly sunny, with a high near 45. Southwest wind 7 to 11 mph. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 33. North wind 9 to 14 mph.
Wednesday
Sunny, with a high near 40. North wind 7 to 13 mph.
Wednesday Night
Mostly clear, with a low around 35. South wind 6 to 9 mph.
Thursday
Mostly sunny, with a high near 48. South wind 10 to 14 mph.
Thursday Night
Partly cloudy, with a low around 43. South wind 11 to 13 mph.
Friday
Mostly sunny, with a high near 50. Southwest wind 10 to 13 mph becoming southeast in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Siasconset MA
 41.28°N 69.97°W (Elev. 56 ft)
Last Update:
2:51 pm EDT Apr 3, 2026
Forecast Valid:
12am EDT Apr 4, 2026-6pm EDT Apr 10, 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