National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Storm Systems to Impact the Central and Eastern U.S. Through the Weekend

Two storm systems will track through the central and eastern U.S. today through this weekend with areas of gusty winds, rain and heavy snow. Severe thunderstorms and heavy to excessive rainfall is forecast today from the Lower Mississippi River Valley to the Tennessee Valley. Damaging winds, a few tornadoes, and areas of flooding are possible. Read More >

Hazardous Weather Conditions

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Clear

48°F

9°C

Humidity 81%
Wind Speed W 4 MPH
Barometer 30.43 in (1030.48 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 10 Jan 06:00 PM PST
Extended Forecast for

Guerneville CA

Cold Weather Advisory January 11, 01:00am until January 11, 09:00am
Click here for hazard details and duration
Cold Weather Advisory

  • Tonight

    Tonight: Patchy frost after 4am. Otherwise, mostly cloudy, with a low around 37. Calm wind.

    Low: 37 °F

    Mostly Cloudy
    then Patchy
    Frost

  • Sunday

    Sunday: Patchy frost before 8am. Otherwise, mostly sunny, with a high near 60. Calm wind.

    High: 60 °F

    Patchy Frost
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 38. Calm wind.

    Low: 38 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 58. Calm wind.

    High: 58 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 41. Calm wind.

    Low: 41 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Wednesday Night

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

    Low: 46 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy frost after 4am. Otherwise, mostly cloudy, with a low around 37. Calm wind.
Sunday
Patchy frost before 8am. Otherwise, mostly sunny, with a high near 60. Calm wind.
Sunday Night
Partly cloudy, with a low around 38. Calm wind.
Monday
Sunny, with a high near 58. Calm wind.
Monday Night
Mostly clear, with a low around 41. Calm wind.
Tuesday
Sunny, with a high near 63.
Tuesday Night
Mostly clear, with a low around 43.
Wednesday
Sunny, with a high near 63.
Wednesday Night
Mostly clear, with a low around 46.
Thursday
Sunny, with a high near 66.
Thursday Night
Mostly clear, with a low around 46.
Friday
Sunny, with a high near 65.
Friday Night
Mostly clear, with a low around 46.
Saturday
Mostly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Guerneville CA
 38.5°N 122.98°W (Elev. 397 ft)
Last Update:
2:45 pm PST Jan 10, 2026
Forecast Valid:
6pm PST Jan 10, 2026-6pm PST Jan 17, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation