Winter Weather in the Eastern U.S.; Heavy Rains Begin Across the Southern Plains into the Ohio Valley

A wintry mix may impact travel across portions of the Mid-Atlantic through the morning and the Northeast U.S. through Tuesday. Heavy rain and thunderstorms may cause a flooding threat across the Southern Plains into the Ohio Valley beginning Tuesday. Fire weather concerns will continue across portions of the central and southern High Plains through Wednesday. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Fog

45°F

7°C

Humidity 100%
Wind Speed S 3 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 45°F (7°C)
Visibility 0.50 mi
Last update 03 Mar 02:07 AM PST
Extended Forecast for

Guerneville CA

  • Overnight

    Overnight: Partly cloudy, with a low around 46. Calm wind.

    Low: 46 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Patchy dense fog before 10am.  Otherwise, sunny, with a high near 64. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 64 °F

    Patchy Dense
    Fog then
    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 47. West wind around 5 mph.

    Low: 47 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: A 20 percent chance of rain before 10am.  Cloudy through mid morning, then gradual clearing, with a high near 62. West northwest wind 5 to 9 mph, with gusts as high as 23 mph.

    High: 62 °F

    Slight Chance
    Rain then
    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 43. Northwest wind 6 to 8 mph, with gusts as high as 23 mph.

    Low: 43 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 46. Calm wind.
Tuesday
Patchy dense fog before 10am. Otherwise, sunny, with a high near 64. Calm wind becoming west southwest around 6 mph in the afternoon.
Tuesday Night
Increasing clouds, with a low around 47. West wind around 5 mph.
Wednesday
A 20 percent chance of rain before 10am. Cloudy through mid morning, then gradual clearing, with a high near 62. West northwest wind 5 to 9 mph, with gusts as high as 23 mph.
Wednesday Night
Clear, with a low around 43. Northwest wind 6 to 8 mph, with gusts as high as 23 mph.
Thursday
Sunny, with a high near 64.
Thursday Night
Mostly clear, with a low around 44.
Friday
Sunny, with a high near 69.
Friday Night
Mostly clear, with a low around 49.
Saturday
Sunny, with a high near 74.
Saturday Night
Mostly clear, with a low around 50.
Sunday
Sunny, with a high near 73.
Sunday Night
Partly cloudy, with a low around 51.
Monday
Partly sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
Guerneville CA
 38.5°N 122.98°W (Elev. 397 ft)
12:26 am PST Mar 3, 2026
2am PST Mar 3, 2026-6pm PDT Mar 9, 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