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

6 Miles SW Saint Helena CA

  • Overnight

    Overnight: Mostly clear, with a low around 53. North northeast wind around 5 mph.

    Low: 53 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 62. Light and variable wind.

    High: 62 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 51. Calm wind becoming north northeast around 5 mph after midnight.

    Low: 51 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 62. North northeast wind around 5 mph becoming calm  in the morning.

    High: 62 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 48. Calm wind becoming north northeast around 5 mph after midnight.

    Low: 48 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 61.

    High: 61 °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 57.

    High: 57 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 53. North northeast wind around 5 mph.
Wednesday
Sunny, with a high near 62. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 51. Calm wind becoming north northeast around 5 mph after midnight.
Thursday
Sunny, with a high near 62. North northeast wind around 5 mph becoming calm in the morning.
Thursday Night
Mostly clear, with a low around 48. Calm wind becoming north northeast around 5 mph after midnight.
Friday
Sunny, with a high near 61.
Friday Night
Mostly clear, with a low around 46.
Saturday
Sunny, with a high near 57.
Saturday Night
Mostly clear, with a low around 45.
Sunday
Mostly sunny, with a high near 54.
Sunday Night
Mostly cloudy, with a low around 47.
Monday
A chance of rain. Patchy fog. Otherwise, mostly cloudy, with a high near 56.
Monday Night
A chance of rain. Mostly cloudy, with a low around 52.
Tuesday
A chance of rain. Partly sunny, with a high near 55.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SW Saint Helena CA
 38.45°N 122.56°W (Elev. 1594 ft)
12:26 am PST Dec 10, 2025
12am 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