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

45°F

7°C

Humidity 75%
Wind Speed ESE 4 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 20 Feb 11:35 PM PST
Extended Forecast for

4 Miles WSW Yountville 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 37. Calm wind.

    Low: 37 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 53. Light east southeast wind becoming south southeast 5 to 9 mph in the morning. Winds could gust as high as 21 mph.

    High: 53 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: A 30 percent chance of rain, mainly after 4am.  Mostly cloudy, with a low around 44. South southeast wind around 7 mph, with gusts as high as 21 mph.

    Low: 44 °F

    Partly Cloudy
    then Chance
    Rain

  • Sunday

    Sunday: A 40 percent chance of rain, mainly before 10am.  Mostly cloudy, with a high near 58. South wind around 6 mph.  New precipitation amounts of less than a tenth of an inch possible.

    High: 58 °F

    Chance Rain

  • Sunday Night

    Sunday Night: A 20 percent chance of rain before 10pm.  Mostly cloudy, with a low around 47. Calm wind.

    Low: 47 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Monday

    Monday: A 30 percent chance of rain after 4pm.  Mostly cloudy, with a high near 61. New precipitation amounts of less than a tenth of an inch possible.

    High: 61 °F

    Partly Sunny
    then Chance
    Rain

  • Monday Night

    Monday Night: Rain likely, mainly after 10pm.  Cloudy, with a low around 53. Chance of precipitation is 70%.

    Low: 53 °F

    Rain Likely

  • Tuesday

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

    High: 58 °F

    Rain

  • Tuesday Night

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

    Low: 53 °F

    Rain

Detailed Forecast

Tonight
Partly cloudy, with a low around 37. Calm wind.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 53. Light east southeast wind becoming south southeast 5 to 9 mph in the morning. Winds could gust as high as 21 mph.
Saturday Night
A 30 percent chance of rain, mainly after 4am. Mostly cloudy, with a low around 44. South southeast wind around 7 mph, with gusts as high as 21 mph.
Sunday
A 40 percent chance of rain, mainly before 10am. Mostly cloudy, with a high near 58. South wind around 6 mph. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
A 20 percent chance of rain before 10pm. Mostly cloudy, with a low around 47. Calm wind.
Monday
A 30 percent chance of rain after 4pm. Mostly cloudy, with a high near 61. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Rain likely, mainly after 10pm. Cloudy, with a low around 53. Chance of precipitation is 70%.
Tuesday
Rain. Cloudy, with a high near 58.
Tuesday Night
Rain, mainly before 10pm. Cloudy, with a low around 53.
Wednesday
A chance of rain. Mostly cloudy, with a high near 60.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 49.
Thursday
A chance of rain. Mostly sunny, with a high near 65.
Thursday Night
A slight chance of rain. Partly cloudy, with a low around 51.
Friday
Mostly sunny, with a high near 67.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Yountville CA
 38.38°N 122.42°W (Elev. 1030 ft)
11:39 pm PST Feb 20, 2026
11pm 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