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

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

Lat: 38.5°NLon: 122.81667°WElev: 125.0ft.

Overcast

55°F

13°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 54°F (12°C)
Visibility 8.00 mi
Last update 19 Aug 06:20 AM PDT
Extended Forecast for

3 Miles ESE Guerneville CA

  • Today

    Today: Areas of fog before 9am.  Otherwise, partly sunny, then gradually becoming sunny, with a high near 84. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 84 °F

    Areas Fog
    then Sunny

  • Tonight

    Tonight: Patchy fog after 1am.  Otherwise, increasing clouds, with a low around 54. Calm wind.

    Low: 54 °F

    Clear then
    Patchy Fog

  • Thursday

    Thursday: Areas of fog before 9am.  Otherwise, mostly sunny, with a high near 82. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 82 °F

    Areas Fog
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 56. Southwest wind around 5 mph becoming calm  in the evening.

    Low: 56 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 82. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 82 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Saturday

    Saturday: Patchy fog before 8am.  Otherwise, sunny, with a high near 84.

    High: 84 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 5am.  Otherwise, mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 9am.  Otherwise, mostly sunny, with a high near 82.

    High: 82 °F

    Patchy Fog
    then Sunny

Detailed Forecast

Today
Areas of fog before 9am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 84. Calm wind becoming southwest around 6 mph in the afternoon.
Tonight
Patchy fog after 1am. Otherwise, increasing clouds, with a low around 54. Calm wind.
Thursday
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 82. Calm wind becoming southwest around 6 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 56. Southwest wind around 5 mph becoming calm in the evening.
Friday
Partly sunny, with a high near 82. Calm wind becoming west southwest around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 54.
Saturday
Patchy fog before 8am. Otherwise, sunny, with a high near 84.
Saturday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 54.
Sunday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 82.
Sunday Night
Patchy fog after 10pm. Otherwise, mostly clear, with a low around 52.
Monday
Areas of fog. Otherwise, mostly sunny, with a high near 76.
Monday Night
Patchy fog. Otherwise, partly cloudy, with a low around 52.
Tuesday
Areas of fog. Otherwise, partly sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Guerneville CA
 38.5°N 122.95°W (Elev. 79 ft)
2:31 am PDT Aug 19, 2026
6am PDT Aug 19, 2026-6pm PDT Aug 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database