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

Atmospheric River Continues Areas of Heavy Rain and Snow for California This Weekend

An atmospheric river will continue to bring gusty winds, moderate to heavy rainfall, and potential flooding to southern California and the southern Great Basin through Sunday. Periods of heavy snow will continue as well above 7,000 feet over the Sierra Nevada mountains associated with this atmospheric river. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Mist

48°F

9°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 48°F (9°C)
Visibility 1.25 mi
Last update 14 Nov 09:20 PM PST
Extended Forecast for

Guerneville CA

  • Tonight

    Tonight: Partly cloudy, with a low around 50. Calm wind.

    Low: 50 °F

    Partly Cloudy

  • Saturday

    Saturday: A 10 percent chance of showers after 4pm. Partly sunny, with a high near 68. Calm wind becoming west around 6 mph in the afternoon.

    High: 68 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely, mainly after 4am. Cloudy, with a low around 53. Light west wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 53 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers likely, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 60. Calm wind becoming south 5 to 9 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 60 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 50. Southeast wind 6 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.

    Low: 50 °F

    Showers

  • Monday

    Monday: Showers likely, mainly before 10am. Partly sunny, with a high near 59. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 59 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A 20 percent chance of showers before 10pm. Partly cloudy, with a low around 46.

    Low: 46 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Tuesday Night

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

    Low: 45 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 50. Calm wind.
Saturday
A 10 percent chance of showers after 4pm. Partly sunny, with a high near 68. Calm wind becoming west around 6 mph in the afternoon.
Saturday Night
Showers likely, mainly after 4am. Cloudy, with a low around 53. Light west wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Showers likely, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 60. Calm wind becoming south 5 to 9 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Showers and possibly a thunderstorm. Low around 50. Southeast wind 6 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Monday
Showers likely, mainly before 10am. Partly sunny, with a high near 59. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
A 20 percent chance of showers before 10pm. Partly cloudy, with a low around 46.
Tuesday
Sunny, with a high near 63.
Tuesday Night
Mostly clear, with a low around 45.
Wednesday
A chance of showers, mainly after 4pm. Partly sunny, with a high near 62.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 49.
Thursday
A chance of showers. Partly sunny, with a high near 60.
Thursday Night
A chance of showers. Partly cloudy, with a low around 47.
Friday
Mostly sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Guerneville CA
 38.49°N 123°W (Elev. 197 ft)
Last Update:
8:05 pm PST Nov 14, 2025
Forecast Valid:
9pm PST Nov 14, 2025-6pm PST Nov 21, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation