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

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Mist

43°F

6°C

Humidity 96%
Wind Speed N 0 MPH
Barometer 30.22 in (1023.37 mb)
Dewpoint 42°F (6°C)
Visibility 1.00 mi
Last update 27 Nov 08:38 AM PST
Extended Forecast for

Saint Helena CA

  • Thanksgiving Day

    Thanksgiving Day: Mostly sunny, with a high near 67. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 67 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy dense fog. Otherwise, partly cloudy, with a low around 43. Calm wind becoming west northwest around 5 mph after midnight.

    Low: 43 °F

    Patchy Dense
    Fog

  • Friday

    Friday: Patchy dense fog before 11am. Otherwise, sunny, with a high near 64. Light and variable wind.

    High: 64 °F

    Patchy Dense
    Fog then
    Sunny

  • Friday Night

    Friday Night: Patchy dense fog. Otherwise, mostly cloudy, with a low around 42. Northeast wind around 5 mph becoming calm in the evening.

    Low: 42 °F

    Patchy Dense
    Fog

  • Saturday

    Saturday: Areas of dense fog before 10am. Otherwise, sunny, with a high near 64. Calm wind.

    High: 64 °F

    Areas Dense
    Fog then
    Sunny

  • Saturday Night

    Saturday Night: Areas of dense fog. Otherwise, partly cloudy, with a low around 42.

    Low: 42 °F

    Areas Dense
    Fog

  • Sunday

    Sunday: Patchy dense fog before 10am. Otherwise, mostly sunny, with a high near 64.

    High: 64 °F

    Patchy Dense
    Fog then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

Detailed Forecast

Thanksgiving Day
Mostly sunny, with a high near 67. Calm wind becoming southeast around 5 mph in the afternoon.
Tonight
Patchy dense fog. Otherwise, partly cloudy, with a low around 43. Calm wind becoming west northwest around 5 mph after midnight.
Friday
Patchy dense fog before 11am. Otherwise, sunny, with a high near 64. Light and variable wind.
Friday Night
Patchy dense fog. Otherwise, mostly cloudy, with a low around 42. Northeast wind around 5 mph becoming calm in the evening.
Saturday
Areas of dense fog before 10am. Otherwise, sunny, with a high near 64. Calm wind.
Saturday Night
Areas of dense fog. Otherwise, partly cloudy, with a low around 42.
Sunday
Patchy dense fog before 10am. Otherwise, mostly sunny, with a high near 64.
Sunday Night
Partly cloudy, with a low around 42.
Monday
Sunny, with a high near 64.
Monday Night
Mostly clear, with a low around 42.
Tuesday
Mostly sunny, with a high near 64.
Tuesday Night
Patchy dense fog. Otherwise, partly cloudy, with a low around 43.
Wednesday
Sunny, with a high near 63.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Helena CA
 38.51°N 122.46°W (Elev. 203 ft)
Last Update:
1:52 am PST Nov 27, 2025
Forecast Valid:
8am PST Nov 27, 2025-6pm PST Dec 3, 2025
 
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Additional Resources

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