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 12 MPH
Barometer 30.33 in (1027.09 mb)
Dewpoint 43°F (6°C)
Visibility 7.00 mi
Wind Chill39°F (4°C)
Last update 07 Dec 09:00 PM PST
Extended Forecast for

2 Miles SE Napa Co. Airport CA

  • Tonight

    Tonight: Widespread dense fog, mainly after 3am. Otherwise, partly cloudy, with a low around 40. Calm wind.

    Low: 40 °F

    Dense Fog

  • Monday

    Monday: Widespread dense fog, mainly before 11am. Otherwise, mostly sunny, with a high near 47. Calm wind.

    High: 47 °F

    Dense Fog

  • Monday Night

    Monday Night: Widespread fog, mainly after 1am. Otherwise, partly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Fog

  • Tuesday

    Tuesday: Widespread fog before 1pm. Otherwise, mostly sunny, with a high near 58. Light east wind.

    High: 58 °F

    Fog

  • Tuesday Night

    Tuesday Night: Widespread fog, mainly after 2am. Otherwise, partly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Fog

  • Wednesday

    Wednesday: Widespread fog, mainly before 10am. Otherwise, mostly sunny, with a high near 61.

    High: 61 °F

    Fog

  • Wednesday Night

    Wednesday Night: Widespread fog, mainly after midnight. Otherwise, mostly clear, with a low around 45.

    Low: 45 °F

    Fog

  • Thursday

    Thursday: Widespread fog, mainly before 10am. Otherwise, mostly sunny, with a high near 61.

    High: 61 °F

    Fog

  • Thursday Night

    Thursday Night: Patchy fog after 7pm. Otherwise, mostly clear, with a low around 44.

    Low: 44 °F

    Patchy Fog

Detailed Forecast

Tonight
Widespread dense fog, mainly after 3am. Otherwise, partly cloudy, with a low around 40. Calm wind.
Monday
Widespread dense fog, mainly before 11am. Otherwise, mostly sunny, with a high near 47. Calm wind.
Monday Night
Widespread fog, mainly after 1am. Otherwise, partly cloudy, with a low around 42. Calm wind.
Tuesday
Widespread fog before 1pm. Otherwise, mostly sunny, with a high near 58. Light east wind.
Tuesday Night
Widespread fog, mainly after 2am. Otherwise, partly cloudy, with a low around 44. Calm wind.
Wednesday
Widespread fog, mainly before 10am. Otherwise, mostly sunny, with a high near 61.
Wednesday Night
Widespread fog, mainly after midnight. Otherwise, mostly clear, with a low around 45.
Thursday
Widespread fog, mainly before 10am. Otherwise, mostly sunny, with a high near 61.
Thursday Night
Patchy fog after 7pm. Otherwise, mostly clear, with a low around 44.
Friday
Areas of fog before noon. Otherwise, mostly sunny, with a high near 61.
Friday Night
Patchy fog. Otherwise, mostly clear, with a low around 43.
Saturday
Widespread fog. Otherwise, mostly sunny, with a high near 61.
Saturday Night
Widespread fog. Otherwise, partly cloudy, with a low around 44.
Sunday
Widespread fog. Otherwise, partly sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Napa Co. Airport CA
 38.18°N 122.26°W (Elev. 56 ft)
Last Update:
8:31 pm PST Dec 7, 2025
Forecast Valid:
9pm PST Dec 7, 2025-6pm PST Dec 14, 2025
 
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Additional Resources

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Chance of Precipitation