Winter Storm Bringing Widespread Hazardous Weather to the Eastern U.S.

A rapidly-intensifying winter storm continues to bring heavy snow, high winds, and blizzard conditions over the Upper Midwest and Great Lakes through today. An Arctic front will lead in a period of gusty to high winds and sharply colder temperatures over the entire eastern U.S. Heavy lake effect snow is then expected from Lakes Erie and Ontario through New Year's Day. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Clear

55°F

13°C

Humidity 54%
Wind Speed N 0 MPH
Barometer 30.26 in (1024.72 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 29 Dec 01:20 PM PST
Extended Forecast for

Guerneville CA

Coastal Flood Advisory December 31, 05:00am until January 4, 02:00pm
Cold Weather Advisory December 30, 01:00am until December 30, 09:00am
Click here for hazard details and duration
Coastal Flood Advisory
Cold Weather Advisory
  • This Afternoon

    This Afternoon: Sunny, with a high near 60. Calm wind.

    High: 60 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 40. Calm wind.

    Low: 40 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 59. East southeast wind 3 to 5 mph.

    High: 59 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 10 percent chance of rain after 4am.  Cloudy, with a low around 46. East northeast wind 3 to 5 mph.

    Low: 46 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Wednesday

    Wednesday: Rain likely, mainly after 10am.  Cloudy, with a high near 54. Light and variable wind becoming east around 5 mph in the afternoon.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 54 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: Rain.  Patchy fog. Low around 49. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 49 °F

    Rain and
    Patchy Fog

  • New Year's Day

    New Year's Day: Rain.  Patchy dense fog before 10am. High near 55. Chance of precipitation is 90%.

    High: 55 °F

    Rain and
    Patchy Dense
    Fog

  • Thursday Night

    Thursday Night: Rain.  Cloudy, with a low around 51.

    Low: 51 °F

    Rain

  • Friday

    Friday: Rain.  Cloudy, with a high near 56.

    High: 56 °F

    Rain

Detailed Forecast

This Afternoon
Sunny, with a high near 60. Calm wind.
Tonight
Mostly clear, with a low around 40. Calm wind.
Tuesday
Mostly sunny, with a high near 59. East southeast wind 3 to 5 mph.
Tuesday Night
A 10 percent chance of rain after 4am. Cloudy, with a low around 46. East northeast wind 3 to 5 mph.
Wednesday
Rain likely, mainly after 10am. Cloudy, with a high near 54. Light and variable wind becoming east around 5 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain. Patchy fog. Low around 49. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
New Year's Day
Rain. Patchy dense fog before 10am. High near 55. Chance of precipitation is 90%.
Thursday Night
Rain. Cloudy, with a low around 51.
Friday
Rain. Cloudy, with a high near 56.
Friday Night
Rain. Cloudy, with a low around 46.
Saturday
Rain. Mostly cloudy, with a high near 53.
Saturday Night
Rain likely. Mostly cloudy, with a low around 44.
Sunday
Rain likely. Mostly cloudy, with a high near 53.
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ABOUT THIS FORECAST

 
Point Forecast:
Guerneville CA
 38.49°N 123°W (Elev. 197 ft)
12:27 pm PST Dec 29, 2025
1pm PST Dec 29, 2025-6pm PST Jan 4, 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