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

Atmospheric River to Begin to Impact the Northwest U.S.; Gusty Winds in the Northeast U.S.

A strong atmospheric river moving into northern California later Tuesday will bring a threat for moderate to heavy rainfall and flooding, gusty to high winds, and mountain snows for parts of the Northwest U.S. through at least Wednesday. Gusty winds and isolated rain and snow showers will continue in the Northeast U.S. Tuesday behind a cold front. 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.

Overcast

55°F

13°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 04 Nov 01:35 AM PST
Extended Forecast for

2 Miles SSE Guerneville CA

Coastal Flood Advisory November 4, 08:00am until November 8, 02:00pm
Wind Advisory November 4, 10:00pm until November 5, 04:00pm
Click here for hazard details and duration
Coastal Flood Advisory
Wind Advisory

  • Overnight

    Overnight: A 20 percent chance of showers. Patchy fog. Otherwise, cloudy, with a low around 53. Calm wind.

    Low: 53 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: A slight chance of showers before 10am, then a slight chance of showers after 4pm. Cloudy, with a high near 63. Light southeast wind becoming south 5 to 9 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    High: 63 °F

    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers, with thunderstorms also possible after 4am. Low around 55. South southeast wind 13 to 15 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    Low: 55 °F

    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 62. South southwest wind 10 to 13 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 62 °F

    Showers

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 53. Calm wind. New precipitation amounts of less than a tenth of an inch possible.

    Low: 53 °F

    Chance
    Showers and
    Patchy Fog

  • Thursday

    Thursday: Areas of fog before noon. Otherwise, mostly sunny, with a high near 65.

    High: 65 °F

    Areas Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers, mainly after 4am. Patchy fog before 10pm, then patchy fog after 3am. Otherwise, mostly cloudy, with a low around 53.

    Low: 53 °F

    Chance
    Showers and
    Patchy Fog

  • Friday

    Friday: A chance of showers before 10am. Patchy fog before noon. Otherwise, partly sunny, with a high near 66.

    High: 66 °F

    Chance
    Showers and
    Patchy Fog
    then Partly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of showers. Patchy fog. Otherwise, cloudy, with a low around 53. Calm wind.
Tuesday
A slight chance of showers before 10am, then a slight chance of showers after 4pm. Cloudy, with a high near 63. Light southeast wind becoming south 5 to 9 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Tuesday Night
Showers, with thunderstorms also possible after 4am. Low around 55. South southeast wind 13 to 15 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Wednesday
Showers and possibly a thunderstorm. High near 62. South southwest wind 10 to 13 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
A 50 percent chance of showers. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 53. Calm wind. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Areas of fog before noon. Otherwise, mostly sunny, with a high near 65.
Thursday Night
A 30 percent chance of showers, mainly after 4am. Patchy fog before 10pm, then patchy fog after 3am. Otherwise, mostly cloudy, with a low around 53.
Friday
A chance of showers before 10am. Patchy fog before noon. Otherwise, partly sunny, with a high near 66.
Friday Night
Partly cloudy, with a low around 50.
Saturday
Partly sunny, with a high near 69.
Saturday Night
A slight chance of showers. Mostly cloudy, with a low around 52.
Sunday
A chance of showers. Partly sunny, with a high near 69.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 53.
Monday
A slight chance of showers. Partly sunny, with a high near 68.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Guerneville CA
 38.48°N 122.97°W (Elev. 597 ft)
Last Update:
1:17 am PST Nov 4, 2025
Forecast Valid:
1am PST Nov 4, 2025-6pm PST Nov 10, 2025
 
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