National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Overcast

45°F

7°C

Humidity 93%
Wind Speed E 11 MPH
Barometer 30.29 in (1025.74 mb)
Dewpoint 43°F (6°C)
Visibility 7.00 mi
Wind Chill39°F (4°C)
Last update 07 Dec 05:35 PM PST
Extended Forecast for

7 Miles ENE Napa CA

  • Tonight

    Tonight: Areas of dense fog. Otherwise, mostly clear, with a low around 41. Calm wind.

    Low: 41 °F

    Areas Dense
    Fog

  • Monday

    Monday: Patchy dense fog before 11am, then patchy dense fog after 5pm. Otherwise, sunny, with a high near 58. Calm wind.

    High: 58 °F

    Patchy Dense
    Fog

  • Monday Night

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

    Low: 43 °F

    Areas Fog

  • Tuesday

    Tuesday: Areas of fog before 1pm, then patchy fog after 4pm. Otherwise, mostly sunny, with a high near 58. Calm wind.

    High: 58 °F

    Areas Fog

  • Tuesday Night

    Tuesday Night: Areas of fog before 11pm. Otherwise, partly cloudy, with a low around 45. Calm wind.

    Low: 45 °F

    Areas Fog
    then Partly
    Cloudy

  • Wednesday

    Wednesday: Patchy fog before noon, then patchy fog after 5pm. Otherwise, mostly sunny, with a high near 61.

    High: 61 °F

    Patchy Fog

  • Wednesday Night

    Wednesday Night: Patchy fog before 9pm. Otherwise, mostly clear, with a low around 46.

    Low: 46 °F

    Patchy Fog
    then Mostly
    Clear

  • Thursday

    Thursday: Patchy fog before noon. Otherwise, sunny, with a high near 61.

    High: 61 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

Detailed Forecast

Tonight
Areas of dense fog. Otherwise, mostly clear, with a low around 41. Calm wind.
Monday
Patchy dense fog before 11am, then patchy dense fog after 5pm. Otherwise, sunny, with a high near 58. Calm wind.
Monday Night
Areas of fog. Otherwise, mostly clear, with a low around 43. Calm wind.
Tuesday
Areas of fog before 1pm, then patchy fog after 4pm. Otherwise, mostly sunny, with a high near 58. Calm wind.
Tuesday Night
Areas of fog before 11pm. Otherwise, partly cloudy, with a low around 45. Calm wind.
Wednesday
Patchy fog before noon, then patchy fog after 5pm. Otherwise, mostly sunny, with a high near 61.
Wednesday Night
Patchy fog before 9pm. Otherwise, mostly clear, with a low around 46.
Thursday
Patchy fog before noon. Otherwise, sunny, with a high near 61.
Thursday Night
Mostly clear, with a low around 44.
Friday
Sunny, with a high near 61.
Friday Night
Mostly clear, with a low around 44.
Saturday
Sunny, with a high near 60.
Saturday Night
Patchy fog. Otherwise, partly cloudy, with a low around 44.
Sunday
Patchy fog. Otherwise, mostly sunny, with a high near 58.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles ENE Napa CA
 38.35°N 122.19°W (Elev. 797 ft)
Last Update:
5:02 pm PST Dec 7, 2025
Forecast Valid:
5pm PST Dec 7, 2025-6pm PST Dec 14, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation