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

46°F

8°C

Humidity 87%
Wind Speed N 0 MPH
Barometer 29.53 in (1000.0 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 11 Oct 08:30 AM PDT
Extended Forecast for

Guerneville CA

Coastal Flood Advisory October 11, 08:56am until October 14, 04:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory October 11, 08:56am until October 14, 04:00pm

    NOW until 4:00pm Wed

    Coastal Flood Advisory

  • Today

    High: 71 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 45. Calm wind.

    Low: 45 °F

    Mostly Clear

  • Columbus Day

    Columbus Day: Sunny, with a high near 70. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 70 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 45. Light and variable wind.

    Low: 45 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 73. Calm wind becoming west around 5 mph in the afternoon.

    High: 73 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

Detailed Forecast

Today
Sunny, with a high near 71. Calm wind becoming south southwest around 6 mph in the afternoon.
Tonight
Mostly clear, with a low around 45. Calm wind.
Columbus Day
Sunny, with a high near 70. Calm wind becoming west 5 to 7 mph in the afternoon.
Monday Night
Mostly clear, with a low around 45. Light and variable wind.
Tuesday
Sunny, with a high near 73. Calm wind becoming west around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 51.
Thursday
Sunny, with a high near 86.
Thursday Night
Clear, with a low around 55.
Friday
Sunny, with a high near 88.
Friday Night
Clear, with a low around 55.
Saturday
Sunny, with a high near 87.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Guerneville CA
 38.52°N 122.98°W (Elev. 95 ft)
Last Update:
8:36 am PDT Oct 11, 2026
Forecast Valid:
8am PDT Oct 11, 2026-6pm PDT Oct 17, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation