Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Current conditions at

KONOCTI (KELC1)

Lat: 38.91189°NLon: 122.70631°WElev: 2163.0ft.

NA

48°F

9°C

Humidity 93%
Wind Speed S 13 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Wind Chill43°F (6°C)
Last update 24 Dec 07:57 PM PST
Extended Forecast for

9 Miles W Clearlake CA

Flood Watch December 24, 09:12pm until December 26, 10:00pm
Wind Advisory December 24, 09:12pm until December 25, 10:00am
Click here for hazard details and duration
Flood Watch
Wind Advisory
  •  
    Flood Watch December 24, 09:12pm until December 26, 10:00pm
    Wind Advisory December 24, 09:12pm until December 25, 10:00am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 44 °F

    Heavy Rain
    and Windy

  • Christmas Day

    Christmas Day: Showers before 7am, then rain between 7am and 1pm, then showers and possibly a thunderstorm after 1pm.  High near 49. Windy, with a south southwest wind 18 to 22 mph, with gusts as high as 46 mph.  Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 49 °F

    Showers and
    Windy

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 7pm, then rain after 7pm.  Low around 43. Breezy, with a south southwest wind 16 to 18 mph, with gusts as high as 36 mph.  Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 43 °F

    Showers and
    Breezy

  • Friday

    Friday: Rain.  High near 49. Breezy, with a south wind 14 to 18 mph, with gusts as high as 37 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 49 °F

    Rain and
    Breezy

  • Friday Night

    Friday Night: Rain likely, mainly before 10pm.  Mostly cloudy, with a low around 40. Southeast wind 8 to 10 mph becoming north northeast after midnight.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 40 °F

    Rain Likely
    then Chance
    Rain

  • Saturday

    Saturday: A 20 percent chance of rain before 10am.  Mostly sunny, with a high near 51. North wind around 6 mph.

    High: 51 °F

    Slight Chance
    Rain then
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny

Detailed Forecast

Tonight
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 44. Windy, with a south southeast wind 15 to 22 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Christmas Day
Showers before 7am, then rain between 7am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 49. Windy, with a south southwest wind 18 to 22 mph, with gusts as high as 46 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday Night
Showers and possibly a thunderstorm before 7pm, then rain after 7pm. Low around 43. Breezy, with a south southwest wind 16 to 18 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Friday
Rain. High near 49. Breezy, with a south wind 14 to 18 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 40. Southeast wind 8 to 10 mph becoming north northeast after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A 20 percent chance of rain before 10am. Mostly sunny, with a high near 51. North wind around 6 mph.
Saturday Night
Mostly clear, with a low around 37.
Sunday
Mostly sunny, with a high near 55.
Sunday Night
Mostly clear, with a low around 39.
Monday
Sunny, with a high near 59.
Monday Night
Mostly clear, with a low around 41.
Tuesday
Sunny, with a high near 61.
Tuesday Night
Partly cloudy, with a low around 43.
Wednesday
Mostly sunny, with a high near 60.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles W Clearlake CA
 38.93°N 122.8°W (Elev. 1798 ft)
1:28 pm PST Dec 24, 2025
9pm PST Dec 24, 2025-6pm PST Dec 31, 2025
 
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Additional Resources

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