Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Overcast

44°F

7°C

Humidity 92%
Wind Speed E 12 MPH
Barometer 30.33 in (1027.09 mb)
Dewpoint 42°F (6°C)
Visibility 8.00 mi
Wind Chill38°F (3°C)
Last update 08 Dec 08:54 PM PST
Extended Forecast for

2 Miles N Napa CA

  • Tonight

    Tonight: Widespread fog, mainly after 10pm.  Otherwise, partly cloudy, with a low around 41. Calm wind.

    Low: 41 °F

    Fog

  • Tuesday

    Tuesday: Widespread dense fog before 1pm, then patchy dense fog after 5pm.  Otherwise, mostly sunny, with a high near 57. Calm wind.

    High: 57 °F

    Dense Fog

  • Tuesday Night

    Tuesday Night: Widespread fog, mainly after 11pm.  Otherwise, partly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Fog

  • Wednesday

    Wednesday: Widespread fog, mainly before 10am.  Otherwise, mostly sunny, with a high near 64. Calm wind.

    High: 64 °F

    Fog then
    Sunny

  • Wednesday Night

    Wednesday Night: Widespread fog, mainly after 11pm.  Otherwise, mostly clear, with a low around 44. Calm wind.

    Low: 44 °F

    Fog

  • Thursday

    Thursday: Widespread fog, mainly before 10am.  Otherwise, sunny, with a high near 64.

    High: 64 °F

    Fog then
    Sunny

  • Thursday Night

    Thursday Night: Patchy fog.  Otherwise, mostly clear, with a low around 42.

    Low: 42 °F

    Patchy Fog

  • Friday

    Friday: Widespread fog, mainly before 10am.  Otherwise, sunny, with a high near 63.

    High: 63 °F

    Fog then
    Sunny

  • Friday Night

    Friday Night: Patchy fog.  Otherwise, mostly clear, with a low around 42.

    Low: 42 °F

    Patchy Fog

Detailed Forecast

Tonight
Widespread fog, mainly after 10pm. Otherwise, partly cloudy, with a low around 41. Calm wind.
Tuesday
Widespread dense fog before 1pm, then patchy dense fog after 5pm. Otherwise, mostly sunny, with a high near 57. Calm wind.
Tuesday Night
Widespread fog, mainly after 11pm. Otherwise, partly cloudy, with a low around 43. Calm wind.
Wednesday
Widespread fog, mainly before 10am. Otherwise, mostly sunny, with a high near 64. Calm wind.
Wednesday Night
Widespread fog, mainly after 11pm. Otherwise, mostly clear, with a low around 44. Calm wind.
Thursday
Widespread fog, mainly before 10am. Otherwise, sunny, with a high near 64.
Thursday Night
Patchy fog. Otherwise, mostly clear, with a low around 42.
Friday
Widespread fog, mainly before 10am. Otherwise, sunny, with a high near 63.
Friday Night
Patchy fog. Otherwise, mostly clear, with a low around 42.
Saturday
Widespread fog, mainly before 9am. Otherwise, sunny, with a high near 62.
Saturday Night
Widespread fog. Otherwise, partly cloudy, with a low around 42.
Sunday
Widespread fog. Otherwise, partly sunny, with a high near 60.
Sunday Night
A slight chance of rain. Patchy fog. Otherwise, mostly cloudy, with a low around 46.
Monday
A chance of rain. Widespread fog. Otherwise, mostly cloudy, with a high near 60.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Napa CA
 38.34°N 122.3°W (Elev. 49 ft)
12:26 pm PST Dec 8, 2025
9pm PST Dec 8, 2025-6pm PST Dec 15, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database