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

69°F

21°C

Humidity 90%
Wind Speed NW 12 mph
Barometer 29.91 in (1012.7 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 14 Sep 8:53 am EDT
Extended Forecast for

Nantucket MA

  • Today

    Today: Isolated showers before 11am. Cloudy early, then gradual clearing, with a high near 74. Breezy, with a northwest wind 13 to 21 mph. Chance of precipitation is 20%.

    High: 74 °F

    Isolated
    Showers then
    Becoming
    Sunny and
    Breezy

  • Tonight

    Tonight: Clear, with a low around 55. Breezy, with a north wind 14 to 20 mph.

    Low: 55 °F

    Clear and
    Breezy then
    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 67. Northeast wind around 14 mph.

    High: 67 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 50. Southeast wind 3 to 6 mph.

    Low: 50 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 70. South wind 5 to 10 mph.

    High: 70 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 58. Southwest wind 5 to 7 mph.

    Low: 58 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 72. South wind 5 to 9 mph.

    High: 72 °F

    Sunny

  • Thursday Night

    Thursday Night: A chance of showers after 3am. Partly cloudy, with a low around 64. Southwest wind 7 to 9 mph. Chance of precipitation is 30%.

    Low: 64 °F

    Partly Cloudy
    then Chance
    Showers

  • Friday

    Friday: A chance of showers before 8am. Mostly sunny, with a high near 72. Northwest wind 11 to 14 mph becoming north in the afternoon. Chance of precipitation is 30%.

    High: 72 °F

    Chance
    Showers then
    Mostly Sunny

Detailed Forecast

Today
Isolated showers before 11am. Cloudy early, then gradual clearing, with a high near 74. Breezy, with a northwest wind 13 to 21 mph. Chance of precipitation is 20%.
Tonight
Clear, with a low around 55. Breezy, with a north wind 14 to 20 mph.
Tuesday
Sunny, with a high near 67. Northeast wind around 14 mph.
Tuesday Night
Mostly clear, with a low around 50. Southeast wind 3 to 6 mph.
Wednesday
Sunny, with a high near 70. South wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 58. Southwest wind 5 to 7 mph.
Thursday
Sunny, with a high near 72. South wind 5 to 9 mph.
Thursday Night
A chance of showers after 3am. Partly cloudy, with a low around 64. Southwest wind 7 to 9 mph. Chance of precipitation is 30%.
Friday
A chance of showers before 8am. Mostly sunny, with a high near 72. Northwest wind 11 to 14 mph becoming north in the afternoon. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 56. Northeast wind 6 to 9 mph.
Saturday
Mostly sunny, with a high near 70. Northeast wind around 11 mph becoming southeast in the afternoon.
Saturday Night
Mostly cloudy, with a low around 61. South wind around 9 mph.
Sunday
A chance of showers. Partly sunny, with a high near 69. South wind around 14 mph becoming northwest in the afternoon. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Nantucket MA
 41.28°N 70.12°W (Elev. 49 ft)
Last Update:
5:04 am EDT Sep 14, 2026
Forecast Valid:
9am EDT Sep 14, 2026-6pm EDT Sep 20, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation