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Above Average Temperatures in the West; Winter Weather Returns to the Upper Midwest and Great Lakes

Well above average temperatures will continue across the West this week, potentially breaking some daily high temperature records. A storm system dropping south out of Canada will bring a wintry mix to the Upper Midwest and Great Lakes Tuesday, pushing into the Central Appalachians and interior Northeast on Wednesday. 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.

Clear

43°F

6°C

Humidity 100%
Wind Speed N 3 MPH
Barometer 30.29 in (1025.74 mb)
Dewpoint 43°F (6°C)
Visibility 7.00 mi
Last update 12 Jan 08:35 PM PST
Extended Forecast for

Saint Helena CA

Cold Weather Advisory January 13, 01:00am until January 13, 09:00am
Click here for hazard details and duration
Cold Weather Advisory

  • Tonight

    Tonight: Mostly clear, with a low around 37. Calm wind.

    Low: 37 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 65. Calm wind.

    High: 65 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 42. Calm wind.

    Low: 42 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 66. Calm wind.

    High: 66 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 44. Calm wind.

    Low: 44 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 37. Calm wind.
Tuesday
Sunny, with a high near 65. Calm wind.
Tuesday Night
Mostly clear, with a low around 42. Calm wind.
Wednesday
Sunny, with a high near 66. Calm wind.
Wednesday Night
Mostly clear, with a low around 44. Calm wind.
Thursday
Sunny, with a high near 66.
Thursday Night
Mostly clear, with a low around 44.
Friday
Sunny, with a high near 67.
Friday Night
Mostly clear, with a low around 43.
Saturday
Sunny, with a high near 66.
Saturday Night
Mostly clear, with a low around 44.
Sunday
Sunny, with a high near 67.
Sunday Night
Partly cloudy, with a low around 44.
M.L.King Day
Mostly sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Helena CA
 38.51°N 122.46°W (Elev. 203 ft)
Last Update:
8:29 pm PST Jan 12, 2026
Forecast Valid:
8pm PST Jan 12, 2026-6pm PST Jan 19, 2026
 
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