National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Clear

66°F

19°C

Humidity 48%
Wind Speed N 0 MPH
Barometer 29.64 in (1003.73 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 10 Oct 11:53 AM PDT
Extended Forecast for

Guerneville CA

Coastal Flood Advisory October 10, 12:10pm until October 14, 04:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory October 10, 12:10pm until October 14, 04:00pm

    NOW until 4:00pm Wed

    Coastal Flood Advisory

  • This Afternoon

    High: 70 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 45. Northwest wind 5 to 8 mph becoming calm after midnight.

    Low: 45 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 70. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 70 °F

    Sunny

  • Sunday Night

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

    Low: 46 °F

    Mostly Clear

  • Columbus Day

    Columbus Day: Sunny, with a high near 69. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 69 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 46.

    Low: 46 °F

    Clear

Detailed Forecast

This Afternoon
Sunny, with a high near 70. West northwest wind 7 to 9 mph.
Tonight
Clear, with a low around 45. Northwest wind 5 to 8 mph becoming calm after midnight.
Sunday
Sunny, with a high near 70. Calm wind becoming southwest around 6 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 46. Calm wind.
Columbus Day
Sunny, with a high near 69. Calm wind becoming southwest around 6 mph in the afternoon.
Monday Night
Mostly clear, with a low around 45.
Tuesday
Sunny, with a high near 71.
Tuesday Night
Clear, with a low around 46.
Wednesday
Sunny, with a high near 76.
Wednesday Night
Clear, with a low around 50.
Thursday
Sunny, with a high near 84.
Thursday Night
Clear, with a low around 54.
Friday
Sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Guerneville CA
 38.51°N 123.01°W (Elev. 735 ft)
Last Update:
11:27 am PDT Oct 10, 2026
Forecast Valid:
12pm PDT Oct 10, 2026-6pm PDT Oct 16, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation