Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Mist

45°F

7°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 30.21 in (1023.03 mb)
Dewpoint 43°F (6°C)
Visibility 6.00 mi
Last update 09 Dec 05:53 PM PST
Extended Forecast for

Monte Rio CA

  • Overnight

    Overnight: Mostly clear, with a low around 44. Light east northeast wind.

    Low: 44 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 61. Light and variable wind.

    High: 61 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 47. Calm wind.

    Low: 47 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 62. Calm wind.

    High: 62 °F

    Sunny

  • Thursday Night

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

    Low: 48 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Friday Night

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

    Low: 46 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Saturday Night

    Saturday Night: Patchy fog before 11pm, then patchy fog after 3am.  Otherwise, partly cloudy, with a low around 46.

    Low: 46 °F

    Patchy Fog

Detailed Forecast

Overnight
Mostly clear, with a low around 44. Light east northeast wind.
Wednesday
Sunny, with a high near 61. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 47. Calm wind.
Thursday
Sunny, with a high near 62. Calm wind.
Thursday Night
Mostly clear, with a low around 48. Calm wind.
Friday
Sunny, with a high near 62.
Friday Night
Mostly clear, with a low around 46.
Saturday
Sunny, with a high near 61.
Saturday Night
Patchy fog before 11pm, then patchy fog after 3am. Otherwise, partly cloudy, with a low around 46.
Sunday
Patchy fog before noon. Otherwise, partly sunny, with a high near 58.
Sunday Night
A slight chance of rain. Patchy fog. Otherwise, mostly cloudy, with a low around 48.
Monday
A chance of rain. Patchy fog. Otherwise, mostly cloudy, with a high near 58.
Monday Night
Rain likely. Mostly cloudy, with a low around 52.
Tuesday
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)
12:26 am PST Dec 10, 2025
2am PST Dec 10, 2025-6pm PST Dec 16, 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