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

42°F

6°C

Humidity 62%
Wind Speed NE 18 mph
Barometer 30.34 in (1027.5 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 21 Apr 7:53 am EDT
Extended Forecast for

Nantucket Memorial Airport MA

  • Today

    Today: Sunny, with a high near 45. Northeast wind 7 to 13 mph.

    High: 45 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 36. South wind around 8 mph.

    Low: 36 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Rain likely, mainly after 2pm. Mostly cloudy, with a high near 46. South wind 13 to 17 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 46 °F

    Slight Chance
    Rain then
    Rain Likely

  • Wednesday Night

    Wednesday Night: A chance of rain, mainly before 9pm. Cloudy, with a low around 40. Southeast wind 7 to 15 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 40 °F

    Chance Rain
    then Mostly
    Cloudy

  • Thursday

    Thursday: A slight chance of showers before 9am, then a slight chance of showers after 4pm. Partly sunny, with a high near 49. East wind 6 to 10 mph becoming west in the morning. Chance of precipitation is 20%.

    High: 49 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 41. Northwest wind 6 to 8 mph.

    Low: 41 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 50. North wind 8 to 10 mph.

    High: 50 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 40. Light and variable wind becoming northeast around 5 mph.

    Low: 40 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 50. Northeast wind 7 to 10 mph.

    High: 50 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 45. Northeast wind 7 to 13 mph.
Tonight
Partly cloudy, with a low around 36. South wind around 8 mph.
Wednesday
Rain likely, mainly after 2pm. Mostly cloudy, with a high near 46. South wind 13 to 17 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A chance of rain, mainly before 9pm. Cloudy, with a low around 40. Southeast wind 7 to 15 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A slight chance of showers before 9am, then a slight chance of showers after 4pm. Partly sunny, with a high near 49. East wind 6 to 10 mph becoming west in the morning. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 41. Northwest wind 6 to 8 mph.
Friday
Mostly sunny, with a high near 50. North wind 8 to 10 mph.
Friday Night
Mostly clear, with a low around 40. Light and variable wind becoming northeast around 5 mph.
Saturday
Mostly sunny, with a high near 50. Northeast wind 7 to 10 mph.
Saturday Night
Mostly cloudy, with a low around 41. East wind around 5 mph.
Sunday
Partly sunny, with a high near 50. Northeast wind 8 to 13 mph.
Sunday Night
Partly cloudy, with a low around 42. Northeast wind around 9 mph.
Monday
Mostly sunny, with a high near 52. Northeast wind 10 to 14 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Nantucket Memorial Airport MA
 41.25°N 70.06°W (Elev. 0 ft)
Last Update:
3:59 am EDT Apr 21, 2026
Forecast Valid:
8am EDT Apr 21, 2026-6pm EDT Apr 27, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation