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 NNW Siasconset MA

  • Overnight

    Overnight: Patchy drizzle. The drizzle could be heavy at times. Patchy dense fog. Otherwise, cloudy, with a low around 43. Breezy, with a southwest wind 18 to 20 mph.

    Low: 43 °F

    Patchy
    Drizzle and
    Patchy Dense
    Fog

  • Saturday

    Saturday: Patchy drizzle before 9am. Patchy fog before 10am. Otherwise, increasing clouds, with a high near 50. West wind 10 to 15 mph becoming northeast in the afternoon.

    High: 50 °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 40. East wind around 14 mph. Chance of precipitation is 20%.

    Low: 40 °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 18 to 23 mph, with gusts as high as 38 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 41. Southwest wind 11 to 18 mph becoming northwest after midnight. Chance of precipitation is 80%.

    Low: 41 °F

    Showers and
    Patchy Fog
    then Chance
    Showers

  • Monday

    Monday: Sunny, with a high near 47. West wind 14 to 17 mph.

    High: 47 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 39. West wind 8 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 34. North wind 10 to 14 mph.

    Low: 34 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy drizzle. The drizzle could be heavy at times. Patchy dense fog. Otherwise, cloudy, with a low around 43. Breezy, with a southwest wind 18 to 20 mph.
Saturday
Patchy drizzle before 9am. Patchy fog before 10am. Otherwise, increasing clouds, with a high near 50. West wind 10 to 15 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 40. East wind around 14 mph. Chance of precipitation is 20%.
Sunday
Showers, mainly after 3pm. Patchy fog after 3pm. High near 52. Breezy, with a southwest wind 18 to 23 mph, with gusts as high as 38 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 41. Southwest wind 11 to 18 mph becoming northwest after midnight. Chance of precipitation is 80%.
Monday
Sunny, with a high near 47. West wind 14 to 17 mph.
Monday Night
Mostly clear, with a low around 39. West wind 8 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 34. North wind 10 to 14 mph.
Wednesday
Sunny, with a high near 40. North wind 8 to 13 mph.
Wednesday Night
Mostly clear, with a low around 36. South wind 7 to 9 mph.
Thursday
Mostly sunny, with a high near 48. South wind 11 to 14 mph.
Thursday Night
Partly cloudy, with a low around 43. South wind around 14 mph.
Friday
Mostly sunny, with a high near 50. Southwest wind 11 to 13 mph becoming south in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Siasconset MA
 41.31°N 70.02°W (Elev. 13 ft)
Last Update:
2:51 pm EDT Apr 3, 2026
Forecast Valid:
12am EDT Apr 4, 2026-6pm EDT Apr 10, 2026
 
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Additional Resources

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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