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Tracking Weekend Storm Impacts

A storm and trailing cold front will continue to slowly move through the Gulf Coast and Southeast U.S. through this weekend with widespread rain showers and isolated thunderstorms. Some snow and a wintry mix is occurring today to the north. A fast-moving clipper storm may bring several inches of snow to the north-central Plains, Midwest, eastern Great Lakes, and Northeast regions this weekend. 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.

Fog

36°F

2°C

Humidity 96%
Wind Speed W 3 MPH
Barometer 30.22 in (1023.37 mb)
Dewpoint 35°F (2°C)
Visibility 0.25 mi
Last update 05 Dec 07:53 AM PST
Extended Forecast for

Saint Helena CA

Coastal Flood Advisory December 5, 08:06am until December 7, 03:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory December 5, 08:06am until December 7, 03:00pm

    NOW until 3:00pm Sun

    Coastal Flood Advisory

  • Today

    High: 63 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 42. North northeast wind 3 to 7 mph.

    Low: 42 °F

    Mostly Clear

  • Saturday

    Saturday: Areas of fog between 9am and 11am. Otherwise, sunny, with a high near 64. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 64 °F

    Areas Fog
    then Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 43. North wind 5 to 7 mph.

    Low: 43 °F

    Partly Cloudy

  • Sunday

    Sunday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 65. Calm wind.

    High: 65 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Monday

    Monday: Areas of fog before 11am. Otherwise, sunny, with a high near 66.

    High: 66 °F

    Areas Fog
    then Sunny

  • Monday Night

    Monday Night: Patchy fog after 9pm. Otherwise, partly cloudy, with a low around 45.

    Low: 45 °F

    Patchy Fog

Detailed Forecast

Today
Sunny, with a high near 63. North northeast wind around 5 mph becoming calm.
Tonight
Mostly clear, with a low around 42. North northeast wind 3 to 7 mph.
Saturday
Areas of fog between 9am and 11am. Otherwise, sunny, with a high near 64. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 43. North wind 5 to 7 mph.
Sunday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 65. Calm wind.
Sunday Night
Partly cloudy, with a low around 43.
Monday
Areas of fog before 11am. Otherwise, sunny, with a high near 66.
Monday Night
Patchy fog after 9pm. Otherwise, partly cloudy, with a low around 45.
Tuesday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 67.
Tuesday Night
Patchy fog. Otherwise, partly cloudy, with a low around 46.
Wednesday
Patchy fog. Otherwise, mostly sunny, with a high near 68.
Wednesday Night
Patchy fog. Otherwise, mostly clear, with a low around 46.
Thursday
Areas of fog. Otherwise, sunny, with a high near 69.
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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:
1:40 am PST Dec 5, 2025
Forecast Valid:
8am PST Dec 5, 2025-6pm PST Dec 11, 2025
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation