Winter Returns Across the Northern Tier; Record Warmth for the Southwest

A large high pressure system will usher in cold air for this first day of March across the northern Plains, Great Lakes, Northeast and mid-Atlantic. Some wintry precipitation may evolve across the mid-Mississippi Valley, Ohio Valley and mid-Atlantic through Monday. Meanwhile, record warmth will spread across the Southwest, southern Plains through early this week. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Mostly Cloudy

61°F

16°C

Humidity 77%
Wind Speed ESE 3 MPH
Barometer 30.04 in (1017.27 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 01 Mar 12:35 PM PST
Extended Forecast for

Guerneville CA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 61. West southwest wind around 6 mph.

    High: 61 °F

    Partly Sunny

  • Tonight

    Tonight: A 50 percent chance of rain, mainly after 10pm.  Widespread fog, mainly between 3am and 4am.  Otherwise, mostly cloudy, with a low around 50. Calm wind.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 50 °F

    Chance Rain
    and Fog

  • Monday

    Monday: A 20 percent chance of rain.  Widespread dense fog before 11am.  Otherwise, mostly sunny, with a high near 63. Light and variable wind.  New precipitation amounts of less than a tenth of an inch possible.

    High: 63 °F

    Slight Chance
    Rain and
    Dense Fog

  • Monday Night

    Monday Night: Patchy fog.  Otherwise, mostly clear, with a low around 46. Calm wind.

    Low: 46 °F

    Patchy Fog

  • Tuesday

    Tuesday: Widespread dense fog, mainly before 8am.  Otherwise, sunny, with a high near 64. Calm wind becoming west around 5 mph in the afternoon.

    High: 64 °F

    Dense Fog
    then Sunny

  • Tuesday Night

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

    Low: 47 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of rain before 10am.  Patchy fog before 7am.  Otherwise, mostly sunny, with a high near 63.

    High: 63 °F

    Slight Chance
    Rain and
    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 43.

    Low: 43 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 61. West southwest wind around 6 mph.
Tonight
A 50 percent chance of rain, mainly after 10pm. Widespread fog, mainly between 3am and 4am. Otherwise, mostly cloudy, with a low around 50. Calm wind. New precipitation amounts of less than a tenth of an inch possible.
Monday
A 20 percent chance of rain. Widespread dense fog before 11am. Otherwise, mostly sunny, with a high near 63. Light and variable wind. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Patchy fog. Otherwise, mostly clear, with a low around 46. Calm wind.
Tuesday
Widespread dense fog, mainly before 8am. Otherwise, sunny, with a high near 64. Calm wind becoming west around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 47.
Wednesday
A 20 percent chance of rain before 10am. Patchy fog before 7am. Otherwise, mostly sunny, with a high near 63.
Wednesday Night
Clear, with a low around 43.
Thursday
Sunny, with a high near 65.
Thursday Night
Mostly clear, with a low around 46.
Friday
Sunny, with a high near 69.
Friday Night
Mostly clear, with a low around 48.
Saturday
Sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
Guerneville CA
 38.5°N 122.98°W (Elev. 397 ft)
12:26 pm PST Mar 1, 2026
12pm PST Mar 1, 2026-6pm PST Mar 7, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database