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

72°F

22°C

Humidity 64%
Wind Speed SE 8 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 28 Feb 11:35 AM PST
Extended Forecast for

Guerneville CA

  • Today

    Today: Partly sunny, with a high near 72. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 72 °F

    Partly Sunny

  • Tonight

    Tonight: Patchy fog after 1am.  Otherwise, mostly cloudy, with a low around 52. Calm wind.

    Low: 52 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy dense fog before 10am.  Otherwise, mostly cloudy, with a high near 62. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 62 °F

    Patchy Dense
    Fog then
    Partly Sunny

  • Sunday Night

    Sunday Night: A 50 percent chance of rain, mainly before 4am.  Patchy fog after 10pm.  Otherwise, mostly cloudy, with a low around 49. Calm wind.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 49 °F

    Chance Rain
    and Patchy
    Fog

  • Monday

    Monday: A 20 percent chance of rain before 10am.  Patchy fog before 10am.  Otherwise, mostly sunny, with a high near 64. Calm wind becoming west around 5 mph in the afternoon.

    High: 64 °F

    Slight Chance
    Rain and
    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Tuesday

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

    High: 64 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

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

    Low: 47 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of rain.  Mostly sunny, with a high near 64.

    High: 64 °F

    Slight Chance
    Rain

Detailed Forecast

Today
Partly sunny, with a high near 72. Calm wind becoming west southwest around 5 mph in the afternoon.
Tonight
Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 52. Calm wind.
Sunday
Patchy dense fog before 10am. Otherwise, mostly cloudy, with a high near 62. Calm wind becoming west southwest around 6 mph in the afternoon.
Sunday Night
A 50 percent chance of rain, mainly before 4am. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 49. Calm wind. New precipitation amounts of less than a tenth of an inch possible.
Monday
A 20 percent chance of rain before 10am. Patchy fog before 10am. Otherwise, mostly sunny, with a high near 64. Calm wind becoming west around 5 mph in the afternoon.
Monday Night
Mostly clear, 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 47.
Wednesday
A slight chance of rain. Mostly sunny, with a high near 64.
Wednesday Night
Mostly clear, with a low around 44.
Thursday
Sunny, with a high near 66.
Thursday Night
Mostly clear, with a low around 46.
Friday
Sunny, with a high near 69.
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ABOUT THIS FORECAST

 
Point Forecast:
Guerneville CA
 38.5°N 122.98°W (Elev. 397 ft)
1:21 am PST Feb 28, 2026
11am PST Feb 28, 2026-6pm PST Mar 6, 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