National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Nantucket, Nantucket Memorial Airport (KACK)

Lat: 41.25°NLon: 70.06°WElev: 46ft.

Light Rain

35°F

2°C

Humidity 96%
Wind Speed NE 15 mph
Barometer 29.59 in (1001.9 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 21 Feb 12:53 am EST
Extended Forecast for

Nantucket MA

Coastal Flood Watch February 23, 01:00am until February 24, 07:00am
Winter Storm Watch February 23, 12:00am until February 23, 07:00pm
High Wind Watch February 23, 06:00am until February 23, 11:00pm
Click here for hazard details and duration
Coastal Flood Watch
Winter Storm Watch
High Wind Watch

  • Overnight

    Overnight: A slight chance of rain before 4am, then a slight chance of snow. Cloudy, with a low around 32. Northwest wind around 11 mph. Chance of precipitation is 20%.

    Low: 32 °F

    Slight Chance
    Rain/Snow

  • Saturday

    Saturday: A slight chance of snow before 8am. Cloudy, with a high near 35. North wind 9 to 13 mph. Chance of precipitation is 20%.

    High: 35 °F

    Slight Chance
    Snow then
    Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 30. North wind around 7 mph.

    Low: 30 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of snow after 2pm. Mostly cloudy, with a high near 36. East wind 7 to 11 mph. Chance of precipitation is 20%.

    High: 36 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Sunday Night

    Sunday Night: Rain and snow, becoming all snow after 4am. The snow could be heavy at times. Low around 30. Blustery, with an east wind 14 to 23 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 30 °F

    Rain/Snow
    Likely then
    Rain/Snow and
    Blustery

  • Monday

    Monday: Snow before 7am, then snow, possibly mixed with rain between 7am and 2pm, then snow after 2pm. The snow could be heavy at times. High near 36. Windy, with a north wind 26 to 29 mph, with gusts as high as 50 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.

    High: 36 °F

    Rain/Snow and
    Windy

  • Monday Night

    Monday Night: Snow likely, mainly before 9pm. Mostly cloudy, with a low around 25. Windy, with a northwest wind 21 to 26 mph decreasing to 14 to 19 mph after midnight. Winds could gust as high as 39 mph. Chance of precipitation is 70%.

    Low: 25 °F

    Snow Likely
    and Windy
    then Chance
    Snow

  • Tuesday

    Tuesday: Partly sunny, with a high near 33. Northwest wind 9 to 13 mph.

    High: 33 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 24. West wind around 9 mph.

    Low: 24 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A slight chance of rain before 4am, then a slight chance of snow. Cloudy, with a low around 32. Northwest wind around 11 mph. Chance of precipitation is 20%.
Saturday
A slight chance of snow before 8am. Cloudy, with a high near 35. North wind 9 to 13 mph. Chance of precipitation is 20%.
Saturday Night
Mostly cloudy, with a low around 30. North wind around 7 mph.
Sunday
A slight chance of snow after 2pm. Mostly cloudy, with a high near 36. East wind 7 to 11 mph. Chance of precipitation is 20%.
Sunday Night
Rain and snow, becoming all snow after 4am. The snow could be heavy at times. Low around 30. Blustery, with an east wind 14 to 23 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Monday
Snow before 7am, then snow, possibly mixed with rain between 7am and 2pm, then snow after 2pm. The snow could be heavy at times. High near 36. Windy, with a north wind 26 to 29 mph, with gusts as high as 50 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.
Monday Night
Snow likely, mainly before 9pm. Mostly cloudy, with a low around 25. Windy, with a northwest wind 21 to 26 mph decreasing to 14 to 19 mph after midnight. Winds could gust as high as 39 mph. Chance of precipitation is 70%.
Tuesday
Partly sunny, with a high near 33. Northwest wind 9 to 13 mph.
Tuesday Night
Mostly cloudy, with a low around 24. West wind around 9 mph.
Wednesday
A chance of snow between 9am and 10am, then a chance of rain after 10am. Mostly cloudy, with a high near 39. West wind 7 to 11 mph becoming south in the afternoon. Chance of precipitation is 30%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 32. Southwest wind around 10 mph. Chance of precipitation is 40%.
Thursday
A chance of rain. Mostly cloudy, with a high near 42. Southwest wind 11 to 14 mph. Chance of precipitation is 50%.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 30. Southwest wind around 11 mph. Chance of precipitation is 50%.
Friday
A chance of rain and snow. Partly sunny, with a high near 38. West wind 9 to 11 mph. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Nantucket MA
 41.28°N 70.09°W (Elev. 3 ft)
Last Update:
4:49 pm EST Feb 20, 2026
Forecast Valid:
1am EST Feb 21, 2026-6pm EST Feb 27, 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