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.

Fog

50°F

10°C

Humidity 100%
Wind Speed SW 15 mph
Barometer 30.23 in (1023.7 mb)
Dewpoint 50°F (10°C)
Visibility 0.50 mi
Wind Chill45°F (7°C)
Last update 3 Apr 12:53 pm EDT
Extended Forecast for

2 Miles NNE Siasconset MA

  • This Afternoon

    This Afternoon: Patchy drizzle. The drizzle could be heavy at times. Patchy dense fog. Otherwise, cloudy, with a high near 51. Southwest wind around 14 mph.

    High: 51 °F

    Patchy
    Drizzle and
    Patchy Dense
    Fog

  • Tonight

    Tonight: Patchy drizzle. The drizzle could be heavy at times. Patchy dense fog. Otherwise, cloudy, with a low around 43. Southwest wind 16 to 18 mph.

    Low: 43 °F

    Patchy
    Drizzle and
    Patchy Dense
    Fog

  • Saturday

    Saturday: Patchy drizzle between 11am and 2pm. 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

  • 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 16 to 22 mph, with gusts as high as 37 mph. Chance of precipitation is 80%.

    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: Patchy fog between 7am and 8am. Otherwise, sunny, with a high near 47. West wind 14 to 16 mph.

    High: 47 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 39. West wind 7 to 13 mph.

    Low: 39 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers after noon. Partly sunny, with a high near 45. Southwest wind 7 to 11 mph. Chance of precipitation is 30%.

    High: 45 °F

    Partly Sunny
    then Chance
    Showers

Detailed Forecast

This Afternoon
Patchy drizzle. The drizzle could be heavy at times. Patchy dense fog. Otherwise, cloudy, with a high near 51. Southwest wind around 14 mph.
Tonight
Patchy drizzle. The drizzle could be heavy at times. Patchy dense fog. Otherwise, cloudy, with a low around 43. Southwest wind 16 to 18 mph.
Saturday
Patchy drizzle between 11am and 2pm. 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 16 to 22 mph, with gusts as high as 37 mph. Chance of precipitation is 80%.
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
Patchy fog between 7am and 8am. Otherwise, sunny, with a high near 47. West wind 14 to 16 mph.
Monday Night
Partly cloudy, with a low around 39. West wind 7 to 13 mph.
Tuesday
A chance of showers after noon. Partly 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 13 mph.
Wednesday
Sunny, with a high near 41. North wind 7 to 11 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 9 to 13 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Siasconset MA
 41.31°N 69.99°W (Elev. 49 ft)
Last Update:
12:57 pm EDT Apr 3, 2026
Forecast Valid:
1pm EDT Apr 3, 2026-6pm EDT Apr 9, 2026
 
Forecast Discussion
 
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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