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

34°F

1°C

Humidity 56%
Wind Speed W 20 G 31 mph
Barometer NA
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 20 Jan 1:53 am EST
Extended Forecast for

Nantucket MA

  • Overnight

    Overnight: Mostly cloudy, with a low around 24. West wind around 18 mph, with gusts as high as 28 mph.

    Low: 24 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 28. West wind 14 to 17 mph.

    High: 28 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 20. West wind 10 to 15 mph.

    Low: 20 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 41. Southwest wind 8 to 14 mph.

    High: 41 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain after 3am. Mostly cloudy, with a low around 33. Southwest wind around 15 mph. Chance of precipitation is 20%.

    Low: 33 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Thursday

    Thursday: A slight chance of rain before 1pm. Mostly sunny, with a high near 43. Southwest wind 13 to 15 mph. Chance of precipitation is 20%.

    High: 43 °F

    Slight Chance
    Rain

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 29. West wind 11 to 13 mph.

    Low: 29 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 36. West wind 13 to 16 mph.

    High: 36 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 13. West wind around 17 mph.

    Low: 13 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 24. West wind around 18 mph, with gusts as high as 28 mph.
Tuesday
Mostly sunny, with a high near 28. West wind 14 to 17 mph.
Tuesday Night
Mostly clear, with a low around 20. West wind 10 to 15 mph.
Wednesday
Partly sunny, with a high near 41. Southwest wind 8 to 14 mph.
Wednesday Night
A slight chance of rain after 3am. Mostly cloudy, with a low around 33. Southwest wind around 15 mph. Chance of precipitation is 20%.
Thursday
A slight chance of rain before 1pm. Mostly sunny, with a high near 43. Southwest wind 13 to 15 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 29. West wind 11 to 13 mph.
Friday
Partly sunny, with a high near 36. West wind 13 to 16 mph.
Friday Night
Mostly cloudy, with a low around 13. West wind around 17 mph.
Saturday
Mostly sunny, with a high near 21. Northwest wind 13 to 15 mph.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 14. North wind around 13 mph. Chance of precipitation is 40%.
Sunday
Snow likely. Mostly cloudy, with a high near 25. North wind around 14 mph. Chance of precipitation is 60%.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 17. North wind around 14 mph. Chance of precipitation is 50%.
Monday
A chance of snow. Partly sunny, with a high near 26. Northwest wind around 15 mph. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Nantucket MA
 41.28°N 70.12°W (Elev. 49 ft)
Last Update:
12:45 am EST Jan 20, 2026
Forecast Valid:
2am EST Jan 20, 2026-6pm EST Jan 26, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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