Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds in the North-Central U.S.

A prolonged atmospheric river will continue impacting the Pacific Northwest with heavy rainfall which has lead to areas of urban and river flooding along with gusty winds into Thursday. A clipper will bring heavy snow, some mixed wintry precipitation, and gusty to high winds across the northern Plains, Upper Midwest, and the Great Lakes into Thursday morning. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Mist

42°F

6°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.29 in (1025.74 mb)
Dewpoint 42°F (6°C)
Visibility 6.00 mi
Last update 09 Dec 06:54 AM PST
Extended Forecast for

2 Miles NNW Vallejo CA

  • Today

    Today: Patchy fog before 9am.  Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 56. Light east northeast wind.

    High: 56 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Patchy dense fog after 9pm.  Otherwise, partly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Patchy Dense
    Fog

  • Wednesday

    Wednesday: Patchy dense fog before 7am.  Otherwise, mostly sunny, with a high near 58. East wind 3 to 5 mph.

    High: 58 °F

    Patchy Dense
    Fog then
    Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 10pm.  Otherwise, mostly clear, with a low around 43. Calm wind.

    Low: 43 °F

    Patchy Fog

  • Thursday

    Thursday: Mostly sunny, with a high near 61. East northeast wind 3 to 6 mph.

    High: 61 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 2am.  Otherwise, mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Patchy fog after midnight.  Otherwise, partly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Clear
    then Patchy
    Fog

  • Saturday

    Saturday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 56. Light east northeast wind.
Tonight
Patchy dense fog after 9pm. Otherwise, partly cloudy, with a low around 42. Calm wind.
Wednesday
Patchy dense fog before 7am. Otherwise, mostly sunny, with a high near 58. East wind 3 to 5 mph.
Wednesday Night
Patchy fog after 10pm. Otherwise, mostly clear, with a low around 43. Calm wind.
Thursday
Mostly sunny, with a high near 61. East northeast wind 3 to 6 mph.
Thursday Night
Patchy fog after 2am. Otherwise, mostly clear, with a low around 42.
Friday
Mostly sunny, with a high near 59.
Friday Night
Patchy fog after midnight. Otherwise, partly cloudy, with a low around 42.
Saturday
Mostly sunny, with a high near 58.
Saturday Night
Patchy fog after 9pm. Otherwise, partly cloudy, with a low around 43.
Sunday
Patchy fog. Otherwise, partly sunny, with a high near 58.
Sunday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 46.
Monday
A slight chance of rain. Areas of fog. Otherwise, partly sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Vallejo CA
 38.16°N 122.25°W (Elev. 26 ft)
2:42 am PST Dec 9, 2025
7am PST Dec 9, 2025-6pm PST Dec 15, 2025
 
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Additional Resources

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Hourly Weather Forecast

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