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.

55°F

13°C

Humidity 93%
Wind Speed NW 5 mph
Barometer 30.20 in (1022.5 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Wind Chill54°F (12°C)
Last update 13 May 4:53 am EDT
Extended Forecast for

3 Miles NNE Siasconset MA

  • Today

    Today: Partly sunny, with a high near 60. North wind 7 to 13 mph becoming east in the afternoon.

    High: 60 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 53. Southeast wind 11 to 13 mph.

    Low: 53 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 59. Southeast wind around 11 mph.

    High: 59 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Showers likely, mainly after 5am. Mostly cloudy, with a low around 56. Southeast wind around 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 56 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers and thunderstorms, mainly before 3pm. Mostly cloudy, with a high near 61. South wind around 10 mph. Chance of precipitation is 50%.

    High: 61 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 56. South wind around 6 mph. Chance of precipitation is 20%.

    Low: 56 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 61. Southwest wind 6 to 8 mph.

    High: 61 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A chance of showers after 8pm. Mostly cloudy, with a low around 57. Southwest wind around 7 mph. Chance of precipitation is 40%.

    Low: 57 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly cloudy, with a high near 62. South wind 8 to 10 mph.

    High: 62 °F

    Mostly Cloudy

Detailed Forecast

Today
Partly sunny, with a high near 60. North wind 7 to 13 mph becoming east in the afternoon.
Tonight
Mostly cloudy, with a low around 53. Southeast wind 11 to 13 mph.
Wednesday
Mostly cloudy, with a high near 59. Southeast wind around 11 mph.
Wednesday Night
Showers likely, mainly after 5am. Mostly cloudy, with a low around 56. Southeast wind around 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A chance of showers and thunderstorms, mainly before 3pm. Mostly cloudy, with a high near 61. South wind around 10 mph. Chance of precipitation is 50%.
Thursday Night
A slight chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 56. South wind around 6 mph. Chance of precipitation is 20%.
Friday
Mostly cloudy, with a high near 61. Southwest wind 6 to 8 mph.
Friday Night
A chance of showers after 8pm. Mostly cloudy, with a low around 57. Southwest wind around 7 mph. Chance of precipitation is 40%.
Saturday
Mostly cloudy, with a high near 62. South wind 8 to 10 mph.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 56. South wind around 9 mph. Chance of precipitation is 40%.
Sunday
Mostly sunny, with a high near 64. West wind 9 to 11 mph.
Sunday Night
Mostly cloudy, with a low around 56. Southwest wind around 10 mph becoming west after midnight.
Monday
Partly sunny, with a high near 61. North wind around 11 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Siasconset MA
 41.33°N 69.98°W (Elev. 0 ft)
Last Update:
2:57 am EDT May 13, 2025
Forecast Valid:
5am EDT May 13, 2025-6pm EDT May 19, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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