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

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. 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

KF6YUA Sebastopol (AR323)

Lat: 38.3803°NLon: 122.8242°WElev: 230.0ft.

NA

41°F

5°C

Humidity 99%
Wind Speed ESE 0 MPH
Barometer 30.23 in (1023.71 mb)
Dewpoint 41°F (5°C)
Visibility NA
Last update 05 Dec 11:54 PM PST
Extended Forecast for

8 Miles SSW Saint Helena CA

Coastal Flood Advisory December 6, 12:12am until December 7, 03:00pm
Cold Weather Advisory December 6, 12:12am until December 6, 08:00am
Click here for hazard details and duration
Coastal Flood Advisory
Cold Weather Advisory
  •  
    Coastal Flood Advisory December 6, 12:12am until December 7, 03:00pm
    Cold Weather Advisory December 6, 12:12am until December 6, 08:00am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Overnight

    Low: 41 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 10am. Otherwise, sunny, with a high near 62. Calm wind becoming west northwest around 6 mph in the afternoon.

    High: 62 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 43. Calm wind.

    Low: 43 °F

    Mostly Clear

  • Sunday

    Sunday: Patchy fog between 7am and 8am. Otherwise, mostly sunny, with a high near 63. Calm wind becoming west around 5 mph in the afternoon.

    High: 63 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Patchy fog before 10pm, then patchy fog after 1am. Otherwise, mostly clear, with a low around 43. Calm wind.

    Low: 43 °F

    Patchy Fog

  • Monday

    Monday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 63.

    High: 63 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 65.

    High: 65 °F

    Patchy Fog
    then Mostly
    Sunny

Detailed Forecast

Overnight
Patchy fog between 1am and 2am. Otherwise, mostly clear, with a low around 41. Light and variable wind.
Saturday
Patchy fog before 10am. Otherwise, sunny, with a high near 62. Calm wind becoming west northwest around 6 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 43. Calm wind.
Sunday
Patchy fog between 7am and 8am. Otherwise, mostly sunny, with a high near 63. Calm wind becoming west around 5 mph in the afternoon.
Sunday Night
Patchy fog before 10pm, then patchy fog after 1am. Otherwise, mostly clear, with a low around 43. Calm wind.
Monday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 63.
Monday Night
Partly cloudy, with a low around 45.
Tuesday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 65.
Tuesday Night
Partly cloudy, with a low around 47.
Wednesday
Patchy fog before 9am. Otherwise, sunny, with a high near 67.
Wednesday Night
Patchy fog. Otherwise, mostly clear, with a low around 46.
Thursday
Areas of fog. Otherwise, sunny, with a high near 67.
Thursday Night
Patchy fog. Otherwise, mostly clear, with a low around 46.
Friday
Patchy fog. Otherwise, sunny, with a high near 66.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles SSW Saint Helena CA
 38.41°N 122.55°W (Elev. 492 ft)
Last Update:
8:05 pm PST Dec 5, 2025
Forecast Valid:
12am PST Dec 6, 2025-6pm PST Dec 12, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation