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

Strong Atmospheric River Bringing Heavy Rain to the Pacific Northwest; Areas of Snow in the North-Central and Eastern U.S.

A strong atmospheric river will bring prolonged heavy rainfall along with gusty winds to the Pacific Northwest through much of this week. The heavy rainfall may lead to widespread urban and river flooding. Accumulating snow is expected over parts of the central Appalachians and Mid-Atlantic today as well as the Upper Midwest and the Upper Great Lakes this evening into Tuesday. 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 10 MPH
Barometer 30.36 in (1028.11 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 08 Dec 11:20 AM PST
Extended Forecast for

Napa CA

  • Today

    Today: Patchy fog before noon. Otherwise, sunny, with a high near 54. Calm wind.

    High: 54 °F

    Patchy Fog

  • Tonight

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

    Low: 41 °F

    Fog

  • Tuesday

    Tuesday: Widespread dense fog, mainly before 11am. Otherwise, mostly sunny, with a high near 56. Calm wind.

    High: 56 °F

    Dense Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Widespread fog, mainly after 11pm. Otherwise, partly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Fog

  • Wednesday

    Wednesday: Widespread fog, mainly before 10am. Otherwise, mostly sunny, with a high near 62. Calm wind.

    High: 62 °F

    Fog then
    Sunny

  • Wednesday Night

    Wednesday Night: Widespread fog, mainly after 1am. Otherwise, mostly clear, with a low around 43.

    Low: 43 °F

    Fog

  • Thursday

    Thursday: Widespread fog, mainly before 10am. Otherwise, sunny, with a high near 62.

    High: 62 °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: Areas of fog before 10am. Otherwise, sunny, with a high near 63.

    High: 63 °F

    Areas Fog
    then Sunny

Detailed Forecast

Today
Patchy fog before noon. Otherwise, sunny, with a high near 54. Calm wind.
Tonight
Widespread fog. Otherwise, partly cloudy, with a low around 41. Calm wind.
Tuesday
Widespread dense fog, mainly before 11am. Otherwise, mostly sunny, with a high near 56. Calm wind.
Tuesday Night
Widespread fog, mainly after 11pm. Otherwise, partly cloudy, with a low around 42. Calm wind.
Wednesday
Widespread fog, mainly before 10am. Otherwise, mostly sunny, with a high near 62. Calm wind.
Wednesday Night
Widespread fog, mainly after 1am. Otherwise, mostly clear, with a low around 43.
Thursday
Widespread fog, mainly before 10am. Otherwise, sunny, with a high near 62.
Thursday Night
Patchy fog. Otherwise, mostly clear, with a low around 42.
Friday
Areas of fog before 10am. Otherwise, sunny, with a high near 63.
Friday Night
Patchy fog. Otherwise, mostly clear, with a low around 42.
Saturday
Widespread fog. Otherwise, mostly sunny, with a high near 62.
Saturday Night
Widespread fog. Otherwise, partly cloudy, with a low around 43.
Sunday
Widespread fog. Otherwise, partly sunny, with a high near 60.
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ABOUT THIS FORECAST

 
Point Forecast:
Napa CA
 38.29°N 122.31°W (Elev. 190 ft)
Last Update:
6:22 am PST Dec 8, 2025
Forecast Valid:
11am PST Dec 8, 2025-6pm PST Dec 14, 2025
 
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Additional Resources

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