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.

Fog

36°F

2°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.49 in (1032.51 mb)
Dewpoint 36°F (2°C)
Visibility 0.25 mi
Last update 10 Jan 12:20 AM PST
Extended Forecast for

Guerneville CA

Cold Weather Advisory January 10, 01:00am until January 10, 09:00am
Click here for hazard details and duration
Cold Weather Advisory

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 40. Calm wind.

    Low: 40 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 56. Light east wind.

    High: 56 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 39. Calm wind.

    Low: 39 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 59. Calm wind.

    High: 59 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 39. Calm wind.

    Low: 39 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Monday Night

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

    Low: 41 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Tuesday Night

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

    Low: 44 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 40. Calm wind.
Saturday
Partly sunny, with a high near 56. Light east wind.
Saturday Night
Mostly cloudy, with a low around 39. Calm wind.
Sunday
Mostly sunny, with a high near 59. Calm wind.
Sunday Night
Partly cloudy, with a low around 39. Calm wind.
Monday
Sunny, with a high near 59.
Monday Night
Mostly clear, with a low around 41.
Tuesday
Sunny, with a high near 62.
Tuesday Night
Mostly clear, with a low around 44.
Wednesday
Sunny, with a high near 64.
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 66.
Basemap Options
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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:
12:26 am PST Jan 10, 2026
Forecast Valid:
12am PST Jan 10, 2026-6pm PST Jan 16, 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