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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 92%
Wind Speed N 4 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 20 Feb 02:20 AM PST
Extended Forecast for

Napa Co. Airport 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

  • Friday

    Friday: Widespread frost, mainly before 8am. Otherwise, partly sunny, with a high near 50. Light and variable wind becoming east 5 to 7 mph in the morning.

    High: 50 °F

    Frost then
    Partly Sunny

  • Friday Night

    Friday Night: Areas of frost between 1am and 3am. Otherwise, partly cloudy, with a low around 34. East wind around 6 mph.

    Low: 34 °F

    Mostly Clear
    then Areas
    Frost

  • Saturday

    Saturday: A 10 percent chance of rain after 4pm. Partly sunny, with a high near 56. Southeast wind 8 to 14 mph, with gusts as high as 21 mph.

    High: 56 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Saturday Night

    Saturday Night: A 30 percent chance of rain, mainly after 10pm. Mostly cloudy, with a low around 45. Southeast wind around 14 mph, with gusts as high as 23 mph.

    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 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 47.

    Low: 47 °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
Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 30. Northwest wind around 6 mph.
Friday
Widespread frost, mainly before 8am. Otherwise, partly sunny, with a high near 50. Light and variable wind becoming east 5 to 7 mph in the morning.
Friday Night
Areas of frost between 1am and 3am. Otherwise, partly cloudy, with a low around 34. East wind around 6 mph.
Saturday
A 10 percent chance of rain after 4pm. Partly sunny, with a high near 56. Southeast wind 8 to 14 mph, with gusts as high as 21 mph.
Saturday Night
A 30 percent chance of rain, mainly after 10pm. Mostly cloudy, with a low around 45. Southeast wind around 14 mph, with gusts as high as 23 mph.
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 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 47.
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 59.
Tuesday Night
Rain likely. Cloudy, with a low around 49.
Wednesday
A chance of rain. Mostly cloudy, with a high near 61.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 48.
Thursday
A chance of rain. Mostly cloudy, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Napa Co. Airport CA
 38.2°N 122.29°W (Elev. 20 ft)
Last Update:
12:32 am PST Feb 20, 2026
Forecast Valid:
2am PST Feb 20, 2026-6pm PST Feb 26, 2026
 
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Additional Resources

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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