Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

72°F

22°C

Humidity 60%
Wind Speed SSW 9 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 19 Aug 02:15 PM PDT
Extended Forecast for

Sonoma CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 89. South southwest wind around 8 mph.

    High: 89 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after 1am.  Otherwise, increasing clouds, with a low around 53. Light and variable wind.

    Low: 53 °F

    Clear then
    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 8am.  Otherwise, partly sunny, with a high near 86. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 86 °F

    Patchy Fog
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 54. West southwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 54 °F

    Mostly Cloudy

  • Friday

    Friday: Patchy fog before 8am.  Otherwise, partly sunny, with a high near 84. Calm wind becoming southwest 5 to 9 mph in the afternoon.

    High: 84 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Patchy fog after 2am.  Otherwise, mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 8am.  Otherwise, sunny, with a high near 86.

    High: 86 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 1am.  Otherwise, mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear
    then Patchy
    Fog

  • Sunday

    Sunday: Areas of fog before 9am.  Otherwise, mostly sunny, with a high near 86.

    High: 86 °F

    Areas Fog
    then Mostly
    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 89. South southwest wind around 8 mph.
Tonight
Patchy fog after 1am. Otherwise, increasing clouds, with a low around 53. Light and variable wind.
Thursday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 86. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 54. West southwest wind 5 to 7 mph becoming calm in the evening.
Friday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 84. Calm wind becoming southwest 5 to 9 mph in the afternoon.
Friday Night
Patchy fog after 2am. Otherwise, mostly clear, with a low around 51.
Saturday
Patchy fog before 8am. Otherwise, sunny, with a high near 86.
Saturday Night
Patchy fog after 1am. Otherwise, mostly clear, with a low around 52.
Sunday
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 86.
Sunday Night
Partly cloudy, with a low around 52.
Monday
Partly sunny, with a high near 82.
Monday Night
Partly cloudy, with a low around 51.
Tuesday
Partly sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
Sonoma CA
 38.29°N 122.43°W (Elev. 95 ft)
1:26 pm PDT Aug 19, 2026
2pm PDT Aug 19, 2026-6pm PDT Aug 25, 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