Significant Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold Temperatures Expands Across the East

A significant, long-duration winter storm will bring widespread heavy snow, sleet, and freezing rain from the Southern Rockies to New England through Monday. Widespread travel disruptions, prolonged power outages, and vast tree damage is likely. Frigid temperatures, gusty winds, and dangerous wind chills will expand from the north-central US to the Southern Plains, MS Valley, and Midwest. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

smoke,mist

45°F

7°C

Humidity 100%
Wind Speed N 5 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 45°F (7°C)
Visibility 0.75 mi
Wind Chill42°F (6°C)
Last update 23 Jan 08:35 AM PST
Extended Forecast for

Saint Helena CA

  • Today

    Today: Areas of fog before 11am.  Otherwise, sunny, with a high near 61. Calm wind.

    High: 61 °F

    Areas Fog
    then Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 45. West northwest wind 3 to 6 mph. Winds could gust as high as 18 mph.

    Low: 45 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 61. Light and variable wind becoming north northeast 5 to 8 mph in the morning. Winds could gust as high as 21 mph.

    High: 61 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 40. North northwest wind 5 to 7 mph becoming light and variable  after midnight. Winds could gust as high as 26 mph.

    Low: 40 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly cloudy, with a high near 56. South wind around 5 mph becoming light and variable.

    High: 56 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

Detailed Forecast

Today
Areas of fog before 11am. Otherwise, sunny, with a high near 61. Calm wind.
Tonight
Mostly clear, with a low around 45. West northwest wind 3 to 6 mph. Winds could gust as high as 18 mph.
Saturday
Sunny, with a high near 61. Light and variable wind becoming north northeast 5 to 8 mph in the morning. Winds could gust as high as 21 mph.
Saturday Night
Increasing clouds, with a low around 40. North northwest wind 5 to 7 mph becoming light and variable after midnight. Winds could gust as high as 26 mph.
Sunday
Mostly cloudy, with a high near 56. South wind around 5 mph becoming light and variable.
Sunday Night
Mostly cloudy, with a low around 41.
Monday
Mostly sunny, with a high near 60.
Monday Night
Mostly clear, with a low around 41.
Tuesday
Mostly sunny, with a high near 61.
Tuesday Night
Mostly cloudy, with a low around 45.
Wednesday
A slight chance of rain. Mostly cloudy, with a high near 59.
Wednesday Night
Mostly cloudy, with a low around 44.
Thursday
Mostly sunny, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Helena CA
 38.51°N 122.49°W (Elev. 594 ft)
12:26 am PST Jan 23, 2026
8am PST Jan 23, 2026-6pm PST Jan 29, 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