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

35°F

2°C

Humidity 93%
Wind Speed S 8 mph
Barometer 30.10 in (1019.3 mb)
Dewpoint 33°F (1°C)
Visibility 9.00 mi
Wind Chill28°F (-2°C)
Last update 17 Feb 5:53 pm EST
Extended Forecast for

Nantucket MA

  • Tonight

    Tonight: Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 31. West wind around 7 mph.

    Low: 31 °F

    Patchy Fog

  • Wednesday

    Wednesday: Rain likely, mainly after 1pm. Patchy fog before 11am. Otherwise, cloudy, with a high near 35. West wind 5 to 7 mph becoming northeast in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 35 °F

    Slight Chance
    Rain and
    Patchy Fog
    then Rain
    Likely

  • Wednesday Night

    Wednesday Night: Rain and snow, becoming all snow after midnight. Low around 32. North wind 6 to 9 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 32 °F

    Rain/Snow
    then Snow
    Likely

  • Thursday

    Thursday: Mostly sunny, with a high near 36. North wind 6 to 9 mph.

    High: 36 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 30. East wind 3 to 5 mph.

    Low: 30 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of snow before 1pm, then rain likely. Mostly cloudy, with a high near 38. East wind 6 to 10 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 38 °F

    Chance Snow
    then
    Rain/Snow
    Likely

  • Friday Night

    Friday Night: Rain likely before 11pm, then rain and snow likely between 11pm and 2am, then snow likely after 2am. Cloudy, with a low around 32. East wind around 11 mph becoming northeast after midnight. Chance of precipitation is 70%.

    Low: 32 °F

    Rain/Snow
    Likely

  • Saturday

    Saturday: A chance of snow before noon. Mostly cloudy, with a high near 37. North wind 7 to 10 mph. Chance of precipitation is 40%.

    High: 37 °F

    Chance Snow
    then Mostly
    Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 29. Northeast wind around 7 mph.

    Low: 29 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 31. West wind around 7 mph.
Wednesday
Rain likely, mainly after 1pm. Patchy fog before 11am. Otherwise, cloudy, with a high near 35. West wind 5 to 7 mph becoming northeast in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain and snow, becoming all snow after midnight. Low around 32. North wind 6 to 9 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Thursday
Mostly sunny, with a high near 36. North wind 6 to 9 mph.
Thursday Night
Mostly cloudy, with a low around 30. East wind 3 to 5 mph.
Friday
A chance of snow before 1pm, then rain likely. Mostly cloudy, with a high near 38. East wind 6 to 10 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Friday Night
Rain likely before 11pm, then rain and snow likely between 11pm and 2am, then snow likely after 2am. Cloudy, with a low around 32. East wind around 11 mph becoming northeast after midnight. Chance of precipitation is 70%.
Saturday
A chance of snow before noon. Mostly cloudy, with a high near 37. North wind 7 to 10 mph. Chance of precipitation is 40%.
Saturday Night
Mostly cloudy, with a low around 29. Northeast wind around 7 mph.
Sunday
A chance of rain and snow after 11am. Mostly cloudy, with a high near 36. East wind 8 to 13 mph. Chance of precipitation is 40%.
Sunday Night
Snow likely, possibly mixed with rain. Cloudy, with a low around 29. Northeast wind 14 to 17 mph. Chance of precipitation is 60%.
Monday
A chance of rain and snow. Mostly cloudy, with a high near 34. Northeast wind around 17 mph. Chance of precipitation is 50%.
Monday Night
A chance of snow. Mostly cloudy, with a low around 23. Northwest wind around 16 mph. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 31. Northwest wind 11 to 15 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Nantucket MA
 41.28°N 70.12°W (Elev. 49 ft)
Last Update:
12:24 pm EST Feb 17, 2026
Forecast Valid:
7pm EST Feb 17, 2026-6pm EST Feb 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation