Hazardous Spring Weather Shifts to the Eastern and Northwest U.S. Wednesday

Isolated to scattered severe thunderstorms are expected Wednesday from the ArkLaTex and Lower Mississippi Valley northeastward through the Ohio Valley and Mid-Atlantic. Thunderstorms may produce heavy to excessive rain that could pose a flooding threat from east Texas into Upstate New York. A moderate atmospheric river will bring heavy snow and high winds to the Northwest U.S. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

41°F

5°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 30.29 in (1025.74 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 11 Mar 03:35 AM PDT
Extended Forecast for

Sonoma CA

  • Overnight

    Overnight: Clear, with a steady temperature around 44. Calm wind.

    Low: 44 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 75. Light and variable wind.

    High: 75 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 46. Calm wind.

    Low: 46 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 78. Light and variable wind.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 3am.  Otherwise, partly cloudy, with a low around 44. Light west wind.

    Low: 44 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: Areas of fog before 9am.  Otherwise, partly sunny, with a high near 76.

    High: 76 °F

    Areas Fog
    then Partly
    Sunny

  • Friday Night

    Friday Night: Patchy fog after 5am.  Otherwise, mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 7am.  Otherwise, sunny, with a high near 80.

    High: 80 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a steady temperature around 44. Calm wind.
Wednesday
Sunny, with a high near 75. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 46. Calm wind.
Thursday
Sunny, with a high near 78. Light and variable wind.
Thursday Night
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 44. Light west wind.
Friday
Areas of fog before 9am. Otherwise, partly sunny, with a high near 76.
Friday Night
Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 46.
Saturday
Patchy fog before 7am. Otherwise, sunny, with a high near 80.
Saturday Night
Mostly clear, with a low around 50.
Sunday
Partly sunny, with a high near 84.
Sunday Night
Mostly cloudy, with a low around 55.
Monday
Mostly sunny, with a high near 87.
Monday Night
Partly cloudy, with a low around 55.
Tuesday
Sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
Sonoma CA
 38.29°N 122.46°W (Elev. 72 ft)
2:53 am PDT Mar 11, 2026
3am PDT Mar 11, 2026-6pm PDT Mar 17, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database