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

46°F

8°C

Humidity 83%
Wind Speed SW 9 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility NA
Wind Chill41°F (5°C)
Last update 25 Dec 12:57 PM PST
Extended Forecast for

15 Miles E Clearlake CA

Flood Watch December 25, 02:11pm until December 26, 04:00pm
Flood Advisory December 25, 02:11pm until December 25, 09:00pm
Winter Storm Warning December 25, 02:11pm until December 26, 10:00pm
Click here for hazard details and duration
Flood Watch
Flood Advisory
Winter Storm Warning
  •  
    Flood Watch December 25, 02:11pm until December 26, 04:00pm
    Flood Advisory December 25, 02:11pm until December 25, 09:00pm
    Winter Storm Warning December 25, 02:11pm until December 26, 10:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Christmas Day

    High: 51 °F

    Showers

  • Tonight

    Tonight: Showers and thunderstorms before 10pm, then rain likely, mainly between 10pm and 11pm.  Low around 44. South southwest wind 14 to 21 mph, with gusts as high as 46 mph.  Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 44 °F

    Showers then
    Chance Rain

  • Friday

    Friday: Rain, mainly before 3pm, then a chance of showers and thunderstorms after 4pm.  High near 52. South southeast wind 11 to 18 mph, with gusts as high as 34 mph.  Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 52 °F

    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 7pm, then a chance of rain, mainly between 7pm and 4am.  Mostly cloudy, with a low around 40. South wind 5 to 8 mph becoming west after midnight. Winds could gust as high as 21 mph.  Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 40 °F

    Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of rain before 10am.  Mostly sunny, with a high near 52. Calm wind becoming north 5 to 8 mph in the morning.

    High: 52 °F

    Slight Chance
    Rain then
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 38.

    Low: 38 °F

    Clear

Detailed Forecast

Christmas Day
Showers and possibly a thunderstorm. High near 51. South wind around 17 mph, with gusts as high as 36 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms before 10pm, then rain likely, mainly between 10pm and 11pm. Low around 44. South southwest wind 14 to 21 mph, with gusts as high as 46 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Rain, mainly before 3pm, then a chance of showers and thunderstorms after 4pm. High near 52. South southeast wind 11 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
A chance of showers and thunderstorms before 7pm, then a chance of rain, mainly between 7pm and 4am. Mostly cloudy, with a low around 40. South wind 5 to 8 mph becoming west after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A 20 percent chance of rain before 10am. Mostly sunny, with a high near 52. Calm wind becoming north 5 to 8 mph in the morning.
Saturday Night
Mostly clear, with a low around 38.
Sunday
Sunny, with a high near 54.
Sunday Night
Clear, with a low around 38.
Monday
Sunny, with a high near 56.
Monday Night
Clear, with a low around 39.
Tuesday
Sunny, with a high near 59.
Tuesday Night
Mostly clear, with a low around 40.
Wednesday
Sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles E Clearlake CA
 38.98°N 122.35°W (Elev. 1198 ft)
1:21 pm PST Dec 25, 2025
2pm PST Dec 25, 2025-6pm PST Dec 31, 2025
 
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Additional Resources

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