National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Clear

84°F

29°C

Humidity 21%
Wind Speed S 9 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 14 Oct 02:53 PM PDT
Extended Forecast for

Saint Helena CA

Coastal Flood Advisory October 14, 03:05pm until October 14, 04:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory October 14, 03:05pm until October 14, 04:00pm

    NOW until 4:00pm Wed

    Coastal Flood Advisory

  • Tonight

    Low: 50 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 91. Calm wind becoming north northeast 5 to 8 mph.

    High: 91 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 56. Calm wind becoming north around 6 mph after midnight.

    Low: 56 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 93. North northeast wind around 6 mph becoming calm in the afternoon.

    High: 93 °F

    Sunny

  • Friday Night

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

    Low: 51 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 5am. Otherwise, mostly clear, with a low around 47.

    Low: 47 °F

    Clear then
    Patchy Fog

  • Sunday

    Sunday: Areas of fog before 9am. Otherwise, sunny, with a high near 79.

    High: 79 °F

    Areas Fog
    then Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 50. Calm wind.
Thursday
Sunny, with a high near 91. Calm wind becoming north northeast 5 to 8 mph.
Thursday Night
Mostly clear, with a low around 56. Calm wind becoming north around 6 mph after midnight.
Friday
Sunny, with a high near 93. North northeast wind around 6 mph becoming calm in the afternoon.
Friday Night
Mostly clear, with a low around 51. Calm wind.
Saturday
Sunny, with a high near 91.
Saturday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 47.
Sunday
Areas of fog before 9am. Otherwise, sunny, with a high near 79.
Sunday Night
Areas of fog after 9pm. Otherwise, mostly clear, with a low around 44.
Monday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 70.
Monday Night
Patchy fog. Otherwise, partly cloudy, with a low around 43.
Tuesday
Patchy fog. Otherwise, mostly sunny, with a high near 72.
Tuesday Night
A slight chance of rain. Partly cloudy, with a low around 44.
Wednesday
Mostly sunny, with a high near 72.
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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:
1:26 pm PDT Oct 14, 2026
Forecast Valid:
3pm PDT Oct 14, 2026-6pm PDT Oct 21, 2026
 
Forecast Discussion
 
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Additional Resources

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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