Critical Fire Weather in the Southern High Plains; Heavy Snow in the Great Lakes and Northeast U.S.

Gusty winds and low relative humidity will bring elevated to critical fire weather conditions to the southern High Plains through the weekend. A winter storm will track across the Great Lakes and Northeast U.S. into Saturday with areas of wintry mix and heavy snow from northern New York through southern Maine. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

Lat: 38.2075°NLon: 122.27944°WElev: 33.0ft.

Clear

53°F

12°C

Humidity 56%
Wind Speed E 6 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 20 Feb 03:54 PM PST
Extended Forecast for

4 Miles N Sonoma CA

Cold Weather Advisory February 21, 01:00am until February 21, 09:00am
Click here for hazard details and duration
Cold Weather Advisory
  • Tonight

    Tonight: Partly cloudy, with a low around 38. East southeast wind 5 to 8 mph.

    Low: 38 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of rain between 4pm and 5pm.  Partly sunny, with a high near 49. East southeast wind 10 to 14 mph, with gusts as high as 25 mph.  Chance of precipitation is 10%.

    High: 49 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Saturday Night

    Saturday Night: A 30 percent chance of rain after 10pm.  Mostly cloudy, with a low around 45. South southeast wind 14 to 16 mph, with gusts as high as 29 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 45 °F

    Chance Rain

  • Sunday

    Sunday: A 50 percent chance of rain.  Mostly cloudy, with a high near 54. South wind 11 to 16 mph, with gusts as high as 25 mph.  New precipitation amounts of less than a tenth of an inch possible.

    High: 54 °F

    Chance Rain

  • Sunday Night

    Sunday Night: A 30 percent chance of rain, mainly before 10pm.  Mostly cloudy, with a low around 49. South wind around 7 mph becoming northeast after midnight.

    Low: 49 °F

    Chance Rain

  • Monday

    Monday: A 30 percent chance of rain, mainly after 4pm.  Mostly cloudy, with a high near 57. New precipitation amounts of less than a tenth of an inch possible.

    High: 57 °F

    Chance Rain

  • Monday Night

    Monday Night: Rain, mainly after 10pm.  Low around 54. Chance of precipitation is 80%.

    Low: 54 °F

    Rain

  • Tuesday

    Tuesday: Rain.  Cloudy, with a high near 58.

    High: 58 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain likely, mainly before 10pm.  Cloudy, with a low around 53.

    Low: 53 °F

    Rain Likely

Detailed Forecast

Tonight
Partly cloudy, with a low around 38. East southeast wind 5 to 8 mph.
Saturday
A slight chance of rain between 4pm and 5pm. Partly sunny, with a high near 49. East southeast wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 10%.
Saturday Night
A 30 percent chance of rain after 10pm. Mostly cloudy, with a low around 45. South southeast wind 14 to 16 mph, with gusts as high as 29 mph. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A 50 percent chance of rain. Mostly cloudy, with a high near 54. South wind 11 to 16 mph, with gusts as high as 25 mph. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 49. South wind around 7 mph becoming northeast after midnight.
Monday
A 30 percent chance of rain, mainly after 4pm. Mostly cloudy, with a high near 57. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Rain, mainly after 10pm. Low around 54. Chance of precipitation is 80%.
Tuesday
Rain. Cloudy, with a high near 58.
Tuesday Night
Rain likely, mainly before 10pm. Cloudy, with a low around 53.
Wednesday
A chance of rain. Mostly cloudy, with a high near 56.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 52.
Thursday
A chance of rain. Partly sunny, with a high near 60.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 52.
Friday
A slight chance of rain. Mostly sunny, with a high near 63.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Sonoma CA
 38.36°N 122.45°W (Elev. 1818 ft)
2:25 pm PST Feb 20, 2026
4pm PST Feb 20, 2026-6pm PST Feb 27, 2026
 
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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