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

63°F

17°C

Humidity 93%
Wind Speed E 6 mph
Barometer 30.11 in (1019.5 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 13 Jul 7:53 pm EDT
Extended Forecast for

2 Miles ENE Siasconset MA

  • Tonight

    Tonight: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 63. Southeast wind 3 to 7 mph.

    Low: 63 °F

    Patchy Fog

  • Monday

    Monday: Partly sunny, with a high near 76. East wind around 6 mph becoming south in the afternoon.

    High: 76 °F

    Partly Sunny

  • Monday Night

    Monday Night: Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 67. Southwest wind around 7 mph.

    Low: 67 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Partly sunny, with a high near 78. Southwest wind 8 to 10 mph.

    High: 78 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 69. Southwest wind around 8 mph.

    Low: 69 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 80. Southwest wind 8 to 10 mph.

    High: 80 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 69. Southwest wind around 10 mph.

    Low: 69 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 80. Southwest wind 10 to 14 mph.

    High: 80 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 70. Southwest wind around 11 mph.

    Low: 70 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 63. Southeast wind 3 to 7 mph.
Monday
Partly sunny, with a high near 76. East wind around 6 mph becoming south in the afternoon.
Monday Night
Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 67. Southwest wind around 7 mph.
Tuesday
Partly sunny, with a high near 78. Southwest wind 8 to 10 mph.
Tuesday Night
Mostly cloudy, with a low around 69. Southwest wind around 8 mph.
Wednesday
Mostly sunny, with a high near 80. Southwest wind 8 to 10 mph.
Wednesday Night
Mostly cloudy, with a low around 69. Southwest wind around 10 mph.
Thursday
Partly sunny, with a high near 80. Southwest wind 10 to 14 mph.
Thursday Night
Mostly cloudy, with a low around 70. Southwest wind around 11 mph.
Friday
Mostly sunny, with a high near 81. Southwest wind 11 to 13 mph.
Friday Night
A chance of showers. Partly cloudy, with a low around 68. Southwest wind 9 to 11 mph. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 79. North wind around 10 mph.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 67. South wind around 7 mph becoming west after midnight. Chance of precipitation is 30%.
Sunday
Partly sunny, with a high near 78. North wind 8 to 10 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:
6:05 pm EDT Jul 13, 2025
Forecast Valid:
8pm EDT Jul 13, 2025-6pm EDT Jul 20, 2025
 
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Additional Resources

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Chance of Precipitation