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.

Overcast

56°F

13°C

Humidity 97%
Wind Speed E 7 mph
Barometer 30.17 in (1021.7 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 15 Jun 11:53 pm EDT
Extended Forecast for

2 Miles NNE Siasconset MA

  • Overnight

    Overnight: Mostly cloudy, with a low around 55. East wind around 7 mph.

    Low: 55 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 64. East wind 10 to 13 mph.

    High: 64 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 56. East wind 6 to 8 mph.

    Low: 56 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 67. East wind 8 to 10 mph.

    High: 67 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A slight chance of showers after 1am. Cloudy, with a low around 59. Southeast wind around 7 mph. Chance of precipitation is 20%.

    Low: 59 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, mainly before noon. Mostly cloudy, with a high near 69. Southwest wind 7 to 10 mph. Chance of precipitation is 30%.

    High: 69 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 61. Southwest wind around 9 mph.

    Low: 61 °F

    Mostly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 72. Southwest wind 10 to 14 mph.

    High: 72 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 61. Southwest wind 11 to 14 mph.

    Low: 61 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 55. East wind around 7 mph.
Monday
Partly sunny, with a high near 64. East wind 10 to 13 mph.
Monday Night
Mostly cloudy, with a low around 56. East wind 6 to 8 mph.
Tuesday
Mostly cloudy, with a high near 67. East wind 8 to 10 mph.
Tuesday Night
A slight chance of showers after 1am. Cloudy, with a low around 59. Southeast wind around 7 mph. Chance of precipitation is 20%.
Wednesday
A chance of showers, mainly before noon. Mostly cloudy, with a high near 69. Southwest wind 7 to 10 mph. Chance of precipitation is 30%.
Wednesday Night
Mostly cloudy, with a low around 61. Southwest wind around 9 mph.
Juneteenth
Mostly sunny, with a high near 72. Southwest wind 10 to 14 mph.
Thursday Night
Partly cloudy, with a low around 61. Southwest wind 11 to 14 mph.
Friday
Mostly sunny, with a high near 71. West wind 11 to 13 mph.
Friday Night
Mostly clear, with a low around 60. West wind around 10 mph.
Saturday
Sunny, with a high near 70. Southwest wind around 10 mph.
Saturday Night
Partly cloudy, with a low around 61. Southwest wind around 10 mph.
Sunday
Mostly sunny, with a high near 71. Southwest wind 11 to 13 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Siasconset MA
 41.31°N 69.99°W (Elev. 49 ft)
Last Update:
8:56 pm EDT Jun 15, 2025
Forecast Valid:
12am EDT Jun 16, 2025-6pm EDT Jun 22, 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