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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 critical fire weather to the southern High Plains Friday. A winter storm will track across the Great Lakes and Northeast U.S. Friday into Saturday with areas of wintry mix and heavy snow from northern New York through southern Maine. Read More >

Hazardous Weather Conditions

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

32°F

0°C

Humidity 95%
Wind Speed N 6 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 20 Feb 02:54 AM PST
Extended Forecast for

Napa CA

Extreme Cold Warning until February 20, 09:00am
Click here for hazard details and duration
Extreme Cold Warning
  •  
    Extreme Cold Warning until February 20, 09:00am

    NOW until 9:00am Fri

    Extreme Cold Warning

  • Overnight

    Low: 30 °F

    Frost and
    Patchy Fog

  • Friday

    Friday: Patchy fog before 8am. Widespread frost before 9am. Otherwise, partly sunny, with a high near 51. Light and variable wind.

    High: 51 °F

    Frost and
    Patchy Fog
    then Partly
    Sunny

  • Friday Night

    Friday Night: Patchy fog after 10pm. Patchy frost after midnight. Otherwise, partly cloudy, with a low around 34. Calm wind.

    Low: 34 °F

    Patchy Fog
    then Patchy
    Frost and
    Patchy Fog

  • Saturday

    Saturday: A 10 percent chance of rain after 4pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 56. Calm wind becoming southeast 5 to 7 mph in the morning.

    High: 56 °F

    Patchy Fog
    then Slight
    Chance Rain

  • Saturday Night

    Saturday Night: A 40 percent chance of rain, mainly after 10pm. Mostly cloudy, with a low around 45. Southeast wind around 6 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 61. New precipitation amounts of less than a tenth of an inch possible.

    High: 61 °F

    Chance Rain

  • Sunday Night

    Sunday Night: A 40 percent chance of rain, mainly before 4am. Mostly cloudy, with a low around 49.

    Low: 49 °F

    Chance Rain

  • Monday

    Monday: A chance of rain, mainly after 10am. Mostly cloudy, with a high near 62.

    High: 62 °F

    Chance Rain

Detailed Forecast

Overnight
Patchy fog before 4am, then patchy fog after 5am. Widespread frost. Otherwise, mostly clear, with a low around 30. Calm wind.
Friday
Patchy fog before 8am. Widespread frost before 9am. Otherwise, partly sunny, with a high near 51. Light and variable wind.
Friday Night
Patchy fog after 10pm. Patchy frost after midnight. Otherwise, partly cloudy, with a low around 34. Calm wind.
Saturday
A 10 percent chance of rain after 4pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 56. Calm wind becoming southeast 5 to 7 mph in the morning.
Saturday Night
A 40 percent chance of rain, mainly after 10pm. Mostly cloudy, with a low around 45. Southeast wind around 6 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 61. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
A 40 percent chance of rain, mainly before 4am. Mostly cloudy, with a low around 49.
Monday
A chance of rain, mainly after 10am. Mostly cloudy, with a high near 62.
Monday Night
Rain, mainly after 10pm. Cloudy, with a low around 52.
Tuesday
Rain. Cloudy, with a high near 60.
Tuesday Night
Rain likely. Patchy fog. Otherwise, cloudy, with a low around 48.
Wednesday
Rain likely. Patchy fog. Otherwise, mostly cloudy, with a high near 62.
Wednesday Night
A chance of rain. Patchy fog. Otherwise, mostly cloudy, with a low around 48.
Thursday
A chance of rain. Mostly cloudy, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Napa CA
 38.29°N 122.29°W (Elev. 20 ft)
Last Update:
12:32 am PST Feb 20, 2026
Forecast Valid:
3am PST Feb 20, 2026-6pm PST Feb 26, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation