Severe Weather and Heavy Rainfall from the Midwest to the Ohio Valley; Mid-Summer Heat Continues

Severe thunderstorm and heavy rainfall threats will persist from the Midwest to Lower Great Lakes through Monday, shifting into the Ohio Valley and Central Appalachians Monday evening into Tuesday. Mid-summer heat will continue across much of the CONUS this week, with record highs possible well into the 100s across the south-central High Plains. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

57°F

14°C

Humidity 87%
Wind Speed SSW 4 MPH
Barometer 29.83 in (1010.16 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 10 Aug 04:00 AM PDT
Extended Forecast for

Sonoma CA

Coastal Flood Advisory August 10, 04:21am until August 13, 02:00am
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory August 10, 04:21am until August 13, 02:00am

    NOW until 2:00am Thu

    Coastal Flood Advisory

  • Today

    High: 84 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Areas of fog after 1am.  Otherwise, mostly clear, with a low around 53. Southwest wind around 5 mph becoming calm  in the evening.

    Low: 53 °F

    Mostly Clear
    then Areas
    Fog

  • Tuesday

    Tuesday: Areas of fog before 9am.  Otherwise, sunny, with a high near 83. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 83 °F

    Areas Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after midnight.  Otherwise, increasing clouds, with a low around 53. South southwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 53 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Areas of fog before 9am.  Otherwise, mostly sunny, with a high near 80. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 80 °F

    Areas Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 2am.  Otherwise, partly cloudy, with a low around 53.

    Low: 53 °F

    Mostly Clear
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 8am.  Otherwise, partly sunny, with a high near 76.

    High: 76 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 2am.  Otherwise, partly cloudy, with a low around 53.

    Low: 53 °F

    Mostly Clear
    then Patchy
    Fog

Detailed Forecast

Today
Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 84. Calm wind becoming south 5 to 8 mph in the afternoon.
Tonight
Areas of fog after 1am. Otherwise, mostly clear, with a low around 53. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
Areas of fog before 9am. Otherwise, sunny, with a high near 83. Calm wind becoming south 5 to 8 mph in the afternoon.
Tuesday Night
Patchy fog after midnight. Otherwise, increasing clouds, with a low around 53. South southwest wind 5 to 7 mph becoming calm in the evening.
Wednesday
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 80. Calm wind becoming south 5 to 8 mph in the afternoon.
Wednesday Night
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 53.
Thursday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 76.
Thursday Night
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 53.
Friday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 78.
Friday Night
Patchy fog after 11pm. Otherwise, mostly clear, with a low around 52.
Saturday
Patchy fog. Otherwise, mostly sunny, with a high near 80.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
Mostly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
Sonoma CA
 38.29°N 122.46°W (Elev. 72 ft)
1:46 am PDT Aug 10, 2026
4am PDT Aug 10, 2026-6pm PDT Aug 16, 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