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.

Fair

23°C

74°F

Humidity 71%
Wind Speed SE 17 km/h
Barometer 1020.0 mb (30.12 in)
Dewpoint 18°C (64°F)
Visibility 16 km
Last update 13 Jul 2:53 pm EDT
Extended Forecast for

Nantucket MA

  • Tonight

    Tonight: Patchy fog after 8pm. Otherwise, increasing clouds, with a low around 18. East wind 5 to 13 km/h.

    Low: 18 °C

    Patchy Fog

  • Monday

    Monday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 26. East wind 8 to 11 km/h becoming south in the afternoon.

    High: 26 °C

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 20. Southwest wind around 10 km/h.

    Low: 20 °C

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 27. Southwest wind 13 to 16 km/h.

    High: 27 °C

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 21. Southwest wind 11 to 13 km/h.

    Low: 21 °C

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 27. Southwest wind 11 to 18 km/h.

    High: 27 °C

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 22. Southwest wind around 13 km/h.

    Low: 22 °C

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 28. Southwest wind 16 to 23 km/h.

    High: 28 °C

    Partly Sunny

  • Thursday Night

    Thursday Night: A chance of showers after 1am. Mostly cloudy, with a low around 21. Southwest wind 16 to 18 km/h. Chance of precipitation is 30%.

    Low: 21 °C

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
Patchy fog after 8pm. Otherwise, increasing clouds, with a low around 18. East wind 5 to 13 km/h.
Monday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 26. East wind 8 to 11 km/h becoming south in the afternoon.
Monday Night
Mostly cloudy, with a low around 20. Southwest wind around 10 km/h.
Tuesday
Partly sunny, with a high near 27. Southwest wind 13 to 16 km/h.
Tuesday Night
Mostly cloudy, with a low around 21. Southwest wind 11 to 13 km/h.
Wednesday
Mostly sunny, with a high near 27. Southwest wind 11 to 18 km/h.
Wednesday Night
Partly cloudy, with a low around 22. Southwest wind around 13 km/h.
Thursday
Partly sunny, with a high near 28. Southwest wind 16 to 23 km/h.
Thursday Night
A chance of showers after 1am. Mostly cloudy, with a low around 21. Southwest wind 16 to 18 km/h. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 28. Southwest wind 16 to 18 km/h.
Friday Night
Partly cloudy, with a low around 21. Southwest wind around 11 km/h.
Saturday
Mostly sunny, with a high near 27. North wind 14 to 18 km/h.
Saturday Night
Mostly cloudy, with a low around 20. Southwest wind around 10 km/h.
Sunday
Mostly sunny, with a high near 26. South wind 13 to 16 km/h.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Nantucket MA
 41.28°N 70.12°W (Elev. 49 m)
Last Update:
6:25 am EDT Jul 13, 2025
Forecast Valid:
3pm EDT Jul 13, 2025-6pm EDT Jul 20, 2025
 
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