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

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 >

Hazardous Weather Conditions

Current conditions at

Trinity Center (KO86)

Lat: 40.98452°NLon: 122.69342°WElev: 2385.0ft.

Overcast

45°F

7°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 29.56 in (1001.02 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 24 Dec 07:55 PM PST
Extended Forecast for

Trinity Center CA

Flood Watch December 24, 08:22pm until December 26, 10:00pm
Winter Storm Warning December 24, 08:22pm until December 26, 10:00pm
Click here for hazard details and duration
Flood Watch
Winter Storm Warning
  •  
    Flood Watch December 24, 08:22pm until December 26, 10:00pm
    Winter Storm Warning December 24, 08:22pm until December 26, 10:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 44 °F

    Rain and
    Windy

  • Christmas Day

    Christmas Day: Rain. High near 45. Windy, with a south wind 15 to 23 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 45 °F

    Rain and
    Windy

  • Thursday Night

    Thursday Night: Rain. Low around 37. Breezy, with a south wind 13 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 37 °F

    Rain and
    Breezy

  • Friday

    Friday: Rain. High near 43. South southeast wind around 8 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 43 °F

    Rain

  • Friday Night

    Friday Night: Rain likely before 4am, then a slight chance of rain and snow. Mostly cloudy, with a low around 30. East northeast wind around 6 mph becoming north after midnight. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 30 °F

    Rain Likely
    then Chance
    Rain/Snow

  • Saturday

    Saturday: A slight chance of rain and snow before 10am. Patchy fog between 10am and 1pm. Otherwise, mostly sunny, with a high near 43. Calm wind. Chance of precipitation is 20%.

    High: 43 °F

    Slight Chance
    Rain/Snow and
    Patchy Fog
    then Patchy
    Fog

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 50.

    High: 50 °F

    Partly Sunny

Detailed Forecast

Tonight
Rain. Steady temperature around 44. Windy, with a south southeast wind 8 to 13 mph increasing to 19 to 24 mph after midnight. Winds could gust as high as 46 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Christmas Day
Rain. High near 45. Windy, with a south wind 15 to 23 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday Night
Rain. Low around 37. Breezy, with a south wind 13 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Friday
Rain. High near 43. South southeast wind around 8 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Friday Night
Rain likely before 4am, then a slight chance of rain and snow. Mostly cloudy, with a low around 30. East northeast wind around 6 mph becoming north after midnight. Chance of precipitation is 70%. Little or no snow accumulation expected.
Saturday
A slight chance of rain and snow before 10am. Patchy fog between 10am and 1pm. Otherwise, mostly sunny, with a high near 43. Calm wind. Chance of precipitation is 20%.
Saturday Night
Mostly cloudy, with a low around 29.
Sunday
Partly sunny, with a high near 50.
Sunday Night
Mostly clear, with a low around 34.
Monday
Sunny, with a high near 56.
Monday Night
Partly cloudy, with a low around 38.
Tuesday
Mostly sunny, with a high near 58.
Tuesday Night
Partly cloudy, with a low around 39.
Wednesday
Mostly sunny, with a high near 57.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Trinity Center CA
 40.98°N 122.68°W (Elev. 2369 ft)
Last Update:
1:28 pm PST Dec 24, 2025
Forecast Valid:
8pm PST Dec 24, 2025-6pm PST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

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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