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

TRINITY RIVER NEAR DOUGLAS CITY 1SW (DCYC1)

Lat: 40.64528°NLon: 122.95667°WElev: 1598ft.

NA

N/A

Humidity NA
Wind Speed NA NA MPH
Barometer NA
Dewpoint N/A
Visibility NA
Last update NA
Extended Forecast for

6 Miles SE Lewiston CA

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

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Christmas Day

    High: 40 °F

    Rain and
    Breezy

  • Tonight

    Tonight: Rain before 1am, then rain and snow.  Low around 33. Breezy, with a southeast wind 15 to 20 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 26 mph.  Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 33 °F

    Rain and
    Breezy then
    Rain/Snow

  • Friday

    Friday: Rain and snow, becoming all rain after 10am.  High near 37. South southeast wind 8 to 11 mph, with gusts as high as 23 mph.  Chance of precipitation is 100%. Little or no snow accumulation expected.

    High: 37 °F

    Rain/Snow
    then Rain

  • Friday Night

    Friday Night: Rain and snow before 4am, then a slight chance of snow.  Low around 28. East northeast wind around 8 mph becoming northwest after midnight.  Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 28 °F

    Rain/Snow
    then Chance
    Rain/Snow

  • Saturday

    Saturday: A slight chance of snow showers before 7am, then a slight chance of rain and snow showers between 7am and 10am, then a slight chance of snow showers after 10am.  Mostly sunny, with a high near 39. North northwest wind around 6 mph.  Chance of precipitation is 20%.

    High: 39 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Snow
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 27. North northwest wind around 6 mph.

    Low: 27 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

Detailed Forecast

Christmas Day
Rain. High near 40. Breezy, with a south wind 14 to 21 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
Rain before 1am, then rain and snow. Low around 33. Breezy, with a southeast wind 15 to 20 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Friday
Rain and snow, becoming all rain after 10am. High near 37. South southeast wind 8 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Friday Night
Rain and snow before 4am, then a slight chance of snow. Low around 28. East northeast wind around 8 mph becoming northwest after midnight. Chance of precipitation is 80%. Little or no snow accumulation expected.
Saturday
A slight chance of snow showers before 7am, then a slight chance of rain and snow showers between 7am and 10am, then a slight chance of snow showers after 10am. Mostly sunny, with a high near 39. North northwest wind around 6 mph. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 27. North northwest wind around 6 mph.
Sunday
Mostly sunny, with a high near 43.
Sunday Night
Mostly clear, with a low around 30.
Monday
Sunny, with a high near 48.
Monday Night
Mostly clear, with a low around 34.
Tuesday
Sunny, with a high near 51.
Tuesday Night
Mostly clear, with a low around 34.
Wednesday
Mostly sunny, with a high near 50.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SE Lewiston CA
 40.63°N 122.73°W (Elev. 3360 ft)
1:10 am PST Dec 25, 2025
9am PST Dec 25, 2025-6pm PST Dec 31, 2025
 
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Additional Resources

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