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Tracking Areas of Winter Weather and Heavy Rainfall

A cold front will move through the Great Lakes and Northeast U.S. today, bringing areas of snow and snow squalls which can bring rapid reductions to visibility and slick roads. A storm system will shift from the northern Gulf Coast through the Southeast U.S. today through Friday with areas of heavy to excessive rainfall and light snow further north. Heavy snow is also expected in the Rockies. Read More >

Hazardous Weather Conditions

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

48°F

9°C

Humidity 81%
Wind Speed E 10 MPH
Barometer 30.25 in (1024.38 mb)
Dewpoint 43°F (6°C)
Visibility 8.00 mi
Wind Chill44°F (7°C)
Last update 04 Dec 05:20 PM PST
Extended Forecast for

Napa CA

Coastal Flood Advisory December 4, 05:43pm until December 7, 03:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory December 4, 05:43pm until December 7, 03:00pm

    NOW until 3:00pm Sun

    Coastal Flood Advisory

  • Tonight

    Low: 40 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 62. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 62 °F

    Sunny

  • Friday Night

    Friday Night: Patchy fog after 1am. Otherwise, partly cloudy, with a low around 43. Light southeast wind.

    Low: 43 °F

    Mostly Clear
    then Patchy
    Fog

  • Saturday

    Saturday: Areas of fog before 11am. Otherwise, sunny, with a high near 63. Light southwest wind.

    High: 63 °F

    Areas Fog
    then Sunny

  • Saturday Night

    Saturday Night: Patchy fog. Otherwise, partly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Patchy Fog

  • Sunday

    Sunday: Areas of fog before 11am. Otherwise, partly sunny, with a high near 62.

    High: 62 °F

    Areas Fog
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 9pm. Otherwise, partly cloudy, with a low around 43.

    Low: 43 °F

    Patchy Fog

  • Monday

    Monday: Areas of fog before 11am. Otherwise, mostly sunny, with a high near 64.

    High: 64 °F

    Areas Fog
    then Mostly
    Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 40. Calm wind.
Friday
Sunny, with a high near 62. Calm wind becoming south southwest around 5 mph in the afternoon.
Friday Night
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 43. Light southeast wind.
Saturday
Areas of fog before 11am. Otherwise, sunny, with a high near 63. Light southwest wind.
Saturday Night
Patchy fog. Otherwise, partly cloudy, with a low around 44. Calm wind.
Sunday
Areas of fog before 11am. Otherwise, partly sunny, with a high near 62.
Sunday Night
Patchy fog after 9pm. Otherwise, partly cloudy, with a low around 43.
Monday
Areas of fog before 11am. Otherwise, mostly sunny, with a high near 64.
Monday Night
Patchy fog after 9pm. Otherwise, partly cloudy, with a low around 44.
Tuesday
Areas of fog before 10am. Otherwise, partly sunny, with a high near 63.
Tuesday Night
Patchy fog. Otherwise, partly cloudy, with a low around 45.
Wednesday
Areas of fog. Otherwise, mostly sunny, with a high near 65.
Wednesday Night
Patchy fog. Otherwise, partly cloudy, with a low around 45.
Thursday
Patchy fog. Otherwise, mostly sunny, with a high near 64.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Napa CA
 38.27°N 122.28°W (Elev. 3 ft)
Last Update:
12:26 pm PST Dec 4, 2025
Forecast Valid:
5pm PST Dec 4, 2025-6pm PST Dec 11, 2025
 
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Additional Resources

Radar & Satellite Image

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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