Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Clear

50°F

10°C

Humidity 87%
Wind Speed W 3 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 12 Oct 10:00 PM PDT
Extended Forecast for

Saint Helena CA

Coastal Flood Advisory October 12, 10:15pm until October 14, 04:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory October 12, 10:15pm until October 14, 04:00pm

    NOW until 4:00pm Wed

    Coastal Flood Advisory

  • Tonight

    Low: 45 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 76. North wind 5 to 10 mph becoming light north northwest  in the afternoon. Winds could gust as high as 18 mph.

    High: 76 °F

    Sunny

  • Tuesday Night

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

    Low: 47 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 82. Calm wind.

    High: 82 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 51. Calm wind.

    Low: 51 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 45. Calm wind.
Tuesday
Sunny, with a high near 76. North wind 5 to 10 mph becoming light north northwest in the afternoon. Winds could gust as high as 18 mph.
Tuesday Night
Mostly clear, with a low around 47. Calm wind.
Wednesday
Sunny, with a high near 82. Calm wind.
Wednesday Night
Mostly clear, with a low around 51. Calm wind.
Thursday
Sunny, with a high near 90.
Thursday Night
Mostly clear, with a low around 53.
Friday
Sunny, with a high near 91.
Friday Night
Mostly clear, with a low around 53.
Saturday
Sunny, with a high near 88.
Saturday Night
Mostly clear, with a low around 51.
Sunday
Patchy fog. Otherwise, sunny, with a high near 79.
Sunday Night
Patchy fog. Otherwise, partly cloudy, with a low around 47.
Monday
A slight chance of rain. Mostly sunny, with a high near 72.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Helena CA
 38.51°N 122.46°W (Elev. 203 ft)
8:52 pm PDT Oct 12, 2026
10pm PDT Oct 12, 2026-6pm PDT Oct 19, 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