Lala Approaching Hawaii; Flash Flooding Risks; Excessive Heat

Lala, may become a hurricane, is expected to impact Hawaii this weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians continues, with the threat shifting toward the mid-Atlantic later this weekend. Record heat continues for areas of the South. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Mostly Cloudy

56°F

13°C

Humidity 96%
Wind Speed SSE 8 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 15 Aug 09:39 PM PDT
Extended Forecast for

Guerneville CA

  • Tonight

    Tonight: Patchy fog.  Otherwise, partly cloudy, with a low around 52. Calm wind.

    Low: 52 °F

    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 10am.  Otherwise, mostly sunny, with a high near 76. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 76 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 9pm.  Otherwise, mostly cloudy, with a low around 52. Southwest wind around 5 mph becoming calm  in the evening.

    Low: 52 °F

    Patchy Fog

  • Monday

    Monday: Patchy fog before 11am.  Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 71. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 71 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Patchy fog after 8pm.  Otherwise, mostly cloudy, with a low around 53. West southwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 53 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 9am.  Otherwise, partly sunny, with a high near 78.

    High: 78 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog. Otherwise, partly cloudy, with a low around 52. Calm wind.
Sunday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 76. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Sunday Night
Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 52. Southwest wind around 5 mph becoming calm in the evening.
Monday
Patchy fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 71. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Monday Night
Patchy fog after 8pm. Otherwise, mostly cloudy, with a low around 53. West southwest wind 5 to 7 mph becoming calm in the evening.
Tuesday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 78.
Tuesday Night
Partly cloudy, with a low around 56.
Wednesday
Mostly sunny, with a high near 81.
Wednesday Night
Partly cloudy, with a low around 56.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
Partly cloudy, with a low around 55.
Friday
Mostly sunny, with a high near 76.
Friday Night
Mostly clear, with a low around 54.
Saturday
Sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
Guerneville CA
 38.49°N 123°W (Elev. 197 ft)
1:26 pm PDT Aug 15, 2026
9pm PDT Aug 15, 2026-6pm PDT Aug 22, 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