Lake Effect Snow in the Lower Great Lakes; Unsettled Pattern in the Pacific Northwest

Lake-effect snow will continue downwind of Lakes Erie and Ontario through Friday. Lake Effect Snow Warnings have been issued. In the Western U.S., rain and higher elevation snow will continue over the Great Basin through Friday. A front will move over the Pacific Northwest this afternoon and produce light rain and higher elevation snow over the Cascades through Saturday. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Mostly Cloudy

64°F

18°C

Humidity 51%
Wind Speed NNW 6 MPH
Barometer 30.22 in (1023.37 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 12 Feb 12:53 PM PST
Extended Forecast for

Guerneville CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 63. West wind 3 to 6 mph.

    High: 63 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after 2am.  Otherwise, mostly clear, with a low around 44. Light west northwest wind.

    Low: 44 °F

    Clear then
    Patchy Fog

  • Friday

    Friday: Patchy dense fog before 9am.  Otherwise, mostly sunny, with a high near 63. Calm wind becoming west around 5 mph in the afternoon.

    High: 63 °F

    Patchy Dense
    Fog then
    Mostly Sunny

  • Friday Night

    Friday Night: Areas of fog between 4am and 5am.  Otherwise, mostly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Areas Fog

  • Saturday

    Saturday: A 30 percent chance of showers after 4pm.  Areas of dense fog between 7am and 8am.  Otherwise, cloudy, with a high near 57. Calm wind becoming south around 6 mph in the afternoon.  New precipitation amounts of less than a tenth of an inch possible.

    High: 57 °F

    Areas Dense
    Fog then
    Chance
    Showers

  • Saturday Night

    Saturday Night: Showers, mainly after 10pm.  Low around 48. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 48 °F

    Showers

  • Sunday

    Sunday: Showers.  High near 55. Chance of precipitation is 100%.

    High: 55 °F

    Showers

  • Sunday Night

    Sunday Night: Showers.  Cloudy, with a low around 47.

    Low: 47 °F

    Showers

  • Washington's Birthday

    Washington's Birthday: Showers, with thunderstorms also possible after 4pm.  Cloudy, with a high near 55.

    High: 55 °F

    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 63. West wind 3 to 6 mph.
Tonight
Patchy fog after 2am. Otherwise, mostly clear, with a low around 44. Light west northwest wind.
Friday
Patchy dense fog before 9am. Otherwise, mostly sunny, with a high near 63. Calm wind becoming west around 5 mph in the afternoon.
Friday Night
Areas of fog between 4am and 5am. Otherwise, mostly cloudy, with a low around 44. Calm wind.
Saturday
A 30 percent chance of showers after 4pm. Areas of dense fog between 7am and 8am. Otherwise, cloudy, with a high near 57. Calm wind becoming south around 6 mph in the afternoon. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Showers, mainly after 10pm. Low around 48. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Showers. High near 55. Chance of precipitation is 100%.
Sunday Night
Showers. Cloudy, with a low around 47.
Washington's Birthday
Showers, with thunderstorms also possible after 4pm. Cloudy, with a high near 55.
Monday Night
Showers and possibly a thunderstorm. Cloudy, with a low around 42.
Tuesday
Showers. Mostly cloudy, with a high near 52.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 40.
Wednesday
Showers. Mostly cloudy, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
Guerneville CA
 38.49°N 123°W (Elev. 197 ft)
12:44 pm PST Feb 12, 2026
1pm PST Feb 12, 2026-6pm PST Feb 18, 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