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

61°F

16°C

Humidity 81%
Wind Speed E 10 mph
Barometer 30.17 in (1021.7 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 15 Jun 2:53 pm EDT
Extended Forecast for

6 Miles N Siasconset MA

  • Tonight

    Tonight: Mostly cloudy, with a low around 58. East wind 6 to 9 mph.

    Low: 58 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 63. East wind around 11 mph.

    High: 63 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 60. East wind around 10 mph.

    Low: 60 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 64. East wind around 10 mph.

    High: 64 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers after 3am. Mostly cloudy, with a low around 61. East wind 6 to 8 mph becoming south after midnight. Chance of precipitation is 20%.

    Low: 61 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers before 1pm. Partly sunny, with a high near 67. South wind 7 to 11 mph. Chance of precipitation is 20%.

    High: 67 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 63. Southwest wind around 10 mph.

    Low: 63 °F

    Mostly Cloudy

  • Juneteenth

    Juneteenth: Partly sunny, with a high near 70. Southwest wind 13 to 16 mph.

    High: 70 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A chance of showers between 11pm and midnight. Partly cloudy, with a low around 65. West wind 14 to 16 mph. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 58. East wind 6 to 9 mph.
Monday
Mostly sunny, with a high near 63. East wind around 11 mph.
Monday Night
Mostly cloudy, with a low around 60. East wind around 10 mph.
Tuesday
Partly sunny, with a high near 64. East wind around 10 mph.
Tuesday Night
A slight chance of showers after 3am. Mostly cloudy, with a low around 61. East wind 6 to 8 mph becoming south after midnight. Chance of precipitation is 20%.
Wednesday
A slight chance of showers before 1pm. Partly sunny, with a high near 67. South wind 7 to 11 mph. Chance of precipitation is 20%.
Wednesday Night
Mostly cloudy, with a low around 63. Southwest wind around 10 mph.
Juneteenth
Partly sunny, with a high near 70. Southwest wind 13 to 16 mph.
Thursday Night
A chance of showers between 11pm and midnight. Partly cloudy, with a low around 65. West wind 14 to 16 mph. Chance of precipitation is 30%.
Friday
Sunny, with a high near 69. Southwest wind around 15 mph.
Friday Night
Mostly clear, with a low around 64. West wind around 11 mph.
Saturday
Mostly sunny, with a high near 69. West wind 11 to 13 mph.
Saturday Night
Partly cloudy, with a low around 65. South wind 11 to 14 mph becoming west after midnight.
Sunday
Mostly sunny, with a high near 68. Northwest wind 9 to 11 mph becoming east in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles N Siasconset MA
 41.35°N 70.01°W (Elev. 0 ft)
Last Update:
12:45 pm EDT Jun 15, 2025
Forecast Valid:
3pm EDT Jun 15, 2025-6pm EDT Jun 22, 2025
 
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Additional Resources

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Chance of Precipitation