Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Fog

43°F

6°C

Humidity 100%
Wind Speed SE 4 MPH
Barometer 30.29 in (1025.74 mb)
Dewpoint 43°F (6°C)
Visibility 0.50 mi
Wind Chill41°F (5°C)
Last update 09 Dec 03:55 AM PST
Extended Forecast for

Monte Rio CA

  • Today

    Today: Patchy fog before noon.  Otherwise, sunny, with a high near 61. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 61 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 46. Northeast wind 3 to 5 mph.

    Low: 46 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 63. Light and variable wind.

    High: 63 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 48. Calm wind.

    Low: 48 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 64. Calm wind.

    High: 64 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

Detailed Forecast

Today
Patchy fog before noon. Otherwise, sunny, with a high near 61. Calm wind becoming west southwest around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 46. Northeast wind 3 to 5 mph.
Wednesday
Sunny, with a high near 63. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 48. Calm wind.
Thursday
Sunny, with a high near 64. Calm wind.
Thursday Night
Mostly clear, with a low around 48.
Friday
Sunny, with a high near 63.
Friday Night
Partly cloudy, with a low around 47.
Saturday
Sunny, with a high near 60.
Saturday Night
Partly cloudy, with a low around 46.
Sunday
Patchy fog. Otherwise, mostly sunny, with a high near 59.
Sunday Night
A slight chance of rain. Mostly cloudy, with a low around 48.
Monday
A chance of rain. Partly sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
Monte Rio CA
 38.47°N 123.03°W (Elev. 623 ft)
2:42 am PST Dec 9, 2025
4am PST Dec 9, 2025-6pm PST Dec 15, 2025
 
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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