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.

Fog

45°F

7°C

Humidity 100%
Wind Speed S 9 mph
Barometer 29.87 in (1011.5 mb)
Dewpoint 45°F (7°C)
Visibility 0.50 mi
Wind Chill40°F (4°C)
Last update 19 Apr 5:53 am EDT
Extended Forecast for

Nantucket Memorial Airport MA

  • Today

    Today: Rain and possibly a thunderstorm. Patchy dense fog. High near 56. Breezy, with a south wind 9 to 14 mph increasing to 16 to 21 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 56 °F

    Chance Rain
    and Patchy
    Fog then Rain
    and Patchy
    Dense Fog

  • Tonight

    Tonight: A chance of rain before 8pm, then a slight chance of showers between 8pm and 9pm. Patchy fog before 11pm. Otherwise, cloudy during the early evening, then gradual clearing, with a low around 41. Northwest wind 11 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 41 °F

    Chance Rain
    and Patchy
    Fog then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 50. Southwest wind 6 to 8 mph.

    High: 50 °F

    Sunny

  • Monday Night

    Monday Night: A slight chance of showers before 2am. Mostly cloudy, with a low around 37. West wind 6 to 10 mph becoming north after midnight. Chance of precipitation is 20%.

    Low: 37 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 46. North wind 8 to 11 mph.

    High: 46 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 37. Southeast wind 5 to 8 mph becoming southwest after midnight.

    Low: 37 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 50. South wind 10 to 13 mph.

    High: 50 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 42. South wind around 8 mph becoming east after midnight.

    Low: 42 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 53. West wind around 9 mph.

    High: 53 °F

    Mostly Sunny

Detailed Forecast

Today
Rain and possibly a thunderstorm. Patchy dense fog. High near 56. Breezy, with a south wind 9 to 14 mph increasing to 16 to 21 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of rain before 8pm, then a slight chance of showers between 8pm and 9pm. Patchy fog before 11pm. Otherwise, cloudy during the early evening, then gradual clearing, with a low around 41. Northwest wind 11 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Sunny, with a high near 50. Southwest wind 6 to 8 mph.
Monday Night
A slight chance of showers before 2am. Mostly cloudy, with a low around 37. West wind 6 to 10 mph becoming north after midnight. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 46. North wind 8 to 11 mph.
Tuesday Night
Partly cloudy, with a low around 37. Southeast wind 5 to 8 mph becoming southwest after midnight.
Wednesday
Partly sunny, with a high near 50. South wind 10 to 13 mph.
Wednesday Night
Mostly cloudy, with a low around 42. South wind around 8 mph becoming east after midnight.
Thursday
Mostly sunny, with a high near 53. West wind around 9 mph.
Thursday Night
Partly cloudy, with a low around 42. North wind 5 to 7 mph.
Friday
Mostly sunny, with a high near 52. North wind around 9 mph becoming east in the afternoon.
Friday Night
Partly cloudy, with a low around 42. South wind around 7 mph becoming northwest after midnight.
Saturday
Partly sunny, with a high near 52. Northeast wind 8 to 11 mph becoming east in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
Nantucket Memorial Airport MA
 41.25°N 70.09°W (Elev. 23 ft)
Last Update:
3:05 am EDT Apr 19, 2026
Forecast Valid:
6am EDT Apr 19, 2026-6pm EDT Apr 25, 2026
 
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