Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Mist

45°F

7°C

Humidity 93%
Wind Speed E 13 MPH
Barometer 30.22 in (1023.37 mb)
Dewpoint 43°F (6°C)
Visibility 6.00 mi
Wind Chill39°F (4°C)
Last update 09 Dec 07:20 PM PST
Extended Forecast for

Napa CA

  • Tonight

    Tonight: Patchy dense fog.  Otherwise, mostly clear, with a low around 42. Calm wind.

    Low: 42 °F

    Patchy Dense
    Fog

  • Wednesday

    Wednesday: Areas of dense fog before noon.  Otherwise, sunny, with a high near 61. Calm wind.

    High: 61 °F

    Areas Dense
    Fog then
    Sunny

  • Wednesday Night

    Wednesday Night: Areas of fog.  Otherwise, mostly clear, with a low around 43. Calm wind.

    Low: 43 °F

    Areas Fog

  • Thursday

    Thursday: Areas of fog before noon.  Otherwise, sunny, with a high near 64. Calm wind.

    High: 64 °F

    Areas Fog
    then Sunny

  • Thursday Night

    Thursday Night: Patchy fog before 3am, then patchy fog after 5am.  Otherwise, mostly clear, with a low around 42. Calm wind.

    Low: 42 °F

    Patchy Fog

  • Friday

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

    High: 62 °F

    Areas Fog
    then Sunny

  • Friday Night

    Friday Night: Patchy fog after 5am.  Otherwise, mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 11am.  Otherwise, mostly sunny, with a high near 60.

    High: 60 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Patchy fog.  Otherwise, partly cloudy, with a low around 42.

    Low: 42 °F

    Patchy Fog

Detailed Forecast

Tonight
Patchy dense fog. Otherwise, mostly clear, with a low around 42. Calm wind.
Wednesday
Areas of dense fog before noon. Otherwise, sunny, with a high near 61. Calm wind.
Wednesday Night
Areas of fog. Otherwise, mostly clear, with a low around 43. Calm wind.
Thursday
Areas of fog before noon. Otherwise, sunny, with a high near 64. Calm wind.
Thursday Night
Patchy fog before 3am, then patchy fog after 5am. Otherwise, mostly clear, with a low around 42. Calm wind.
Friday
Areas of fog before 11am. Otherwise, sunny, with a high near 62.
Friday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 41.
Saturday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 60.
Saturday Night
Patchy fog. Otherwise, partly cloudy, with a low around 42.
Sunday
Areas of fog before noon. Otherwise, partly sunny, with a high near 59.
Sunday Night
Areas of fog. Otherwise, mostly cloudy, with a low around 43.
Monday
A slight chance of rain. Areas of fog. Otherwise, partly sunny, with a high near 59.
Monday Night
A chance of rain. Areas of fog. Otherwise, mostly cloudy, with a low around 47.
Tuesday
A chance of rain. Areas of fog. Otherwise, partly sunny, with a high near 62.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Napa CA
 38.31°N 122.29°W (Elev. 30 ft)
12:26 pm PST Dec 9, 2025
7pm PST Dec 9, 2025-6pm PST Dec 16, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database