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.

Mostly Cloudy

62°F

17°C

Humidity 96%
Wind Speed Calm
Barometer 30.12 in (1020.0 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 13 Jul 11:53 pm EDT
Extended Forecast for

5 Miles W Nantucket MA

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly cloudy, with a low around 66. Southeast wind around 6 mph.

    Low: 66 °F

    Patchy Fog

  • Monday

    Monday: Partly sunny, with a high near 73. East wind around 7 mph becoming south in the afternoon.

    High: 73 °F

    Partly Sunny

  • Monday Night

    Monday Night: Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 70. Southwest wind 8 to 10 mph.

    Low: 70 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: A slight chance of showers between 9am and noon. Mostly cloudy, with a high near 75. Southwest wind around 11 mph. Chance of precipitation is 20%.

    High: 75 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 71. Southwest wind around 10 mph.

    Low: 71 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 76. Southwest wind 10 to 13 mph.

    High: 76 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 72. Southwest wind 11 to 13 mph.

    Low: 72 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 77. Southwest wind around 15 mph.

    High: 77 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 72. Southwest wind around 16 mph.

    Low: 72 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 66. Southeast wind around 6 mph.
Monday
Partly sunny, with a high near 73. East wind around 7 mph becoming south in the afternoon.
Monday Night
Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 70. Southwest wind 8 to 10 mph.
Tuesday
A slight chance of showers between 9am and noon. Mostly cloudy, with a high near 75. Southwest wind around 11 mph. Chance of precipitation is 20%.
Tuesday Night
Mostly cloudy, with a low around 71. Southwest wind around 10 mph.
Wednesday
Partly sunny, with a high near 76. Southwest wind 10 to 13 mph.
Wednesday Night
Mostly cloudy, with a low around 72. Southwest wind 11 to 13 mph.
Thursday
Partly sunny, with a high near 77. Southwest wind around 15 mph.
Thursday Night
Mostly cloudy, with a low around 72. Southwest wind around 16 mph.
Friday
Mostly sunny, with a high near 77. Southwest wind around 15 mph.
Friday Night
A chance of showers. Mostly cloudy, with a low around 70. Southwest wind around 14 mph. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 76. North wind around 11 mph becoming northeast in the afternoon.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 70. South wind 8 to 10 mph becoming west after midnight. Chance of precipitation is 30%.
Sunday
Partly sunny, with a high near 75. North wind around 11 mph becoming southeast in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles W Nantucket MA
 41.27°N 70.21°W (Elev. 0 ft)
Last Update:
6:05 pm EDT Jul 13, 2025
Forecast Valid:
12am EDT Jul 14, 2025-6pm EDT Jul 20, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation