Tracking Late Season Winter Storms; Unusual Early-Season Heat Wave in the Southwest

Heavy snow and high winds continue in the Great Lakes and Northeast. A moderate atmospheric river will continue to bring heavy precipitation to the Pacific Northwest and northern Rockies. A major winter storm will develop across the northern High Plains tonight into Saturday and rapidly strengthen as it moves into the Great Lakes on Sunday. Above-average temperatures expected in the Southwest. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Clear

70°F

21°C

Humidity 42%
Wind Speed N 0 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 13 Mar 12:53 PM PDT
Extended Forecast for

Saint Helena CA

  • This Afternoon

    This Afternoon: Increasing clouds, with a high near 77. Calm wind.

    High: 77 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy during the early evening, then gradual clearing, with a low around 49. Calm wind.

    Low: 49 °F

    Gradual
    Clearing

  • Saturday

    Saturday: Sunny, with a high near 80. Light west northwest wind.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 53. Light north wind.

    Low: 53 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 87. Light north wind.

    High: 87 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 60.

    Low: 60 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

Detailed Forecast

This Afternoon
Increasing clouds, with a high near 77. Calm wind.
Tonight
Mostly cloudy during the early evening, then gradual clearing, with a low around 49. Calm wind.
Saturday
Sunny, with a high near 80. Light west northwest wind.
Saturday Night
Mostly clear, with a low around 53. Light north wind.
Sunday
Mostly sunny, with a high near 87. Light north wind.
Sunday Night
Partly cloudy, with a low around 58.
Monday
Sunny, with a high near 90.
Monday Night
Clear, with a low around 60.
Tuesday
Sunny, with a high near 91.
Tuesday Night
Clear, with a low around 60.
Wednesday
Sunny, with a high near 91.
Wednesday Night
Clear, with a low around 60.
Thursday
Sunny, with a high near 92.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Saint Helena CA
 38.51°N 122.49°W (Elev. 594 ft)
11:28 am PDT Mar 13, 2026
1pm PDT Mar 13, 2026-6pm PDT Mar 19, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database