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

44°F

7°C

Humidity 68%
Wind Speed NW 12 mph
Barometer 29.82 in (1009.9 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 6 Apr 3:53 am EDT
Extended Forecast for

2 Miles ENE Siasconset MA

  • Today

    Today: Sunny, with a high near 47. West wind 13 to 15 mph.

    High: 47 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 38. West wind 5 to 11 mph.

    Low: 38 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A chance of showers, mainly between 7am and 3pm. Partly sunny, with a high near 46. Southwest wind 9 to 14 mph. Chance of precipitation is 40%.

    High: 46 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 34. North wind 10 to 14 mph.

    Low: 34 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 40. North wind 7 to 11 mph.

    High: 40 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 35. South wind around 6 mph.

    Low: 35 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 45. Southeast wind 6 to 10 mph.

    High: 45 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 40. Southeast wind around 7 mph.

    Low: 40 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 49. South wind 7 to 9 mph.

    High: 49 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 47. West wind 13 to 15 mph.
Tonight
Increasing clouds, with a low around 38. West wind 5 to 11 mph.
Tuesday
A chance of showers, mainly between 7am and 3pm. Partly sunny, with a high near 46. Southwest wind 9 to 14 mph. Chance of precipitation is 40%.
Tuesday Night
Mostly clear, with a low around 34. North wind 10 to 14 mph.
Wednesday
Sunny, with a high near 40. North wind 7 to 11 mph.
Wednesday Night
Mostly clear, with a low around 35. South wind around 6 mph.
Thursday
Sunny, with a high near 45. Southeast wind 6 to 10 mph.
Thursday Night
Partly cloudy, with a low around 40. Southeast wind around 7 mph.
Friday
Mostly sunny, with a high near 49. South wind 7 to 9 mph.
Friday Night
Partly cloudy, with a low around 44. Southwest wind around 9 mph.
Saturday
Mostly sunny, with a high near 51. West wind around 9 mph.
Saturday Night
Partly cloudy, with a low around 42. North wind around 7 mph.
Sunday
Sunny, with a high near 48. Northeast wind around 8 mph becoming southeast in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Siasconset MA
 41.28°N 69.97°W (Elev. 56 ft)
Last Update:
2:31 am EDT Apr 6, 2026
Forecast Valid:
4am EDT Apr 6, 2026-6pm EDT Apr 12, 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