Fire Weather Concerns; Record Warmth Spreads

The Plains to the mid-Mississippi Valley continue with warm and dry conditions. Any fires that initiate could spread quickly. The warm temperatures will expand across the Southern Plains into the Southwest where numerous records are expected through the weekend. Meanwhile, a cold front will move southward across the northern Plains and Great Lakes region where some snow will develop this weekend. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Clear

63°F

17°C

Humidity 72%
Wind Speed N 0 MPH
Barometer 30.18 in (1022.01 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 27 Feb 09:53 AM PST
Extended Forecast for

Guerneville CA

  • Today

    Today: Increasing clouds, with a high near 73. Calm wind.

    High: 73 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, with a low around 55. Calm wind.

    Low: 55 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of rain after 10am.  Patchy dense fog between 7am and 8am.  Otherwise, partly sunny, with a high near 70. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 70 °F

    Slight Chance
    Rain and
    Patchy Dense
    Fog

  • Saturday Night

    Saturday Night: Patchy fog after 1am.  Otherwise, cloudy, with a low around 51. Calm wind.

    Low: 51 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy dense fog before 10am.  Otherwise, mostly cloudy, with a high near 63. Calm wind becoming west around 6 mph in the afternoon.

    High: 63 °F

    Patchy Dense
    Fog then
    Partly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of rain.  Patchy fog after 1am.  Otherwise, mostly cloudy, with a low around 47.

    Low: 47 °F

    Chance Rain
    and Patchy
    Fog

  • Monday

    Monday: A 20 percent chance of rain.  Patchy fog before 9am.  Otherwise, mostly sunny, with a high near 64.

    High: 64 °F

    Slight Chance
    Rain and
    Patchy Fog

  • Monday Night

    Monday Night: Patchy fog after 1am.  Otherwise, partly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 9am.  Otherwise, mostly sunny, with a high near 64.

    High: 64 °F

    Patchy Fog
    then Mostly
    Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 73. Calm wind.
Tonight
Mostly cloudy, with a low around 55. Calm wind.
Saturday
A 20 percent chance of rain after 10am. Patchy dense fog between 7am and 8am. Otherwise, partly sunny, with a high near 70. Calm wind becoming west southwest around 5 mph in the afternoon.
Saturday Night
Patchy fog after 1am. Otherwise, cloudy, with a low around 51. Calm wind.
Sunday
Patchy dense fog before 10am. Otherwise, mostly cloudy, with a high near 63. Calm wind becoming west around 6 mph in the afternoon.
Sunday Night
A 30 percent chance of rain. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 47.
Monday
A 20 percent chance of rain. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 64.
Monday Night
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 46.
Tuesday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 64.
Tuesday Night
Mostly cloudy, with a low around 46.
Wednesday
A slight chance of rain. Mostly sunny, with a high near 63.
Wednesday Night
Mostly clear, with a low around 45.
Thursday
Sunny, with a high near 66.
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ABOUT THIS FORECAST

 
Point Forecast:
Guerneville CA
 38.5°N 122.98°W (Elev. 397 ft)
1:59 am PST Feb 27, 2026
10am PST Feb 27, 2026-6pm PST Mar 5, 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