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 >

Current conditions at

RED BOX (RXFO3)

Lat: 45.0275°NLon: 121.92111°WElev: 3345.0ft.

NA

34°F

1°C

Humidity 97%
Wind Speed NE 1 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Last update 25 Dec 02:07 AM PST
Extended Forecast for

20 Miles S Brightwood OR

  • Overnight

    Overnight: Rain, mainly between 4am and 5am. Steady temperature around 37. East wind around 5 mph. Chance of precipitation is 80%.

    Low: 37 °F

    Rain

  • Christmas Day

    Christmas Day: Rain likely, mainly before 4pm. Mostly cloudy, with a high near 51. East wind around 5 mph becoming south southeast in the afternoon. Chance of precipitation is 70%.

    High: 51 °F

    Rain Likely

  • Thursday Night

    Thursday Night: A chance of rain before 8pm, then rain likely after 1am. Patchy fog after 5am. Snow level 3400 feet. Otherwise, mostly cloudy, with a low around 35. Calm wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 35 °F

    Chance Rain
    then Rain
    Likely and
    Patchy Fog

  • Friday

    Friday: Showers. Patchy fog before 7am. Snow level 3000 feet. High near 44. Light south wind becoming west southwest 5 to 10 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 44 °F

    Showers and
    Patchy Fog

  • Friday Night

    Friday Night: Rain and snow showers before 1am, then snow showers between 1am and 4am, then rain and snow showers likely after 4am. Snow level 1700 feet. Low around 31. West wind 6 to 9 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 31 °F

    Rain/Snow

  • Saturday

    Saturday: Rain and snow showers likely, mainly before 10am. Snow level 1600 feet. Mostly cloudy, with a high near 39. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Rain/Snow
    Likely then
    Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: Patchy fog between 4am and 5am. Otherwise, mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Rain, mainly between 4am and 5am. Steady temperature around 37. East wind around 5 mph. Chance of precipitation is 80%.
Christmas Day
Rain likely, mainly before 4pm. Mostly cloudy, with a high near 51. East wind around 5 mph becoming south southeast in the afternoon. Chance of precipitation is 70%.
Thursday Night
A chance of rain before 8pm, then rain likely after 1am. Patchy fog after 5am. Snow level 3400 feet. Otherwise, mostly cloudy, with a low around 35. Calm wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Showers. Patchy fog before 7am. Snow level 3000 feet. High near 44. Light south wind becoming west southwest 5 to 10 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Rain and snow showers before 1am, then snow showers between 1am and 4am, then rain and snow showers likely after 4am. Snow level 1700 feet. Low around 31. West wind 6 to 9 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Saturday
Rain and snow showers likely, mainly before 10am. Snow level 1600 feet. Mostly cloudy, with a high near 39. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Saturday Night
Patchy fog between 4am and 5am. Otherwise, mostly cloudy, with a low around 25.
Sunday
Partly sunny, with a high near 43.
Sunday Night
Mostly cloudy, with a low around 28.
Monday
Partly sunny, with a high near 47.
Monday Night
Mostly cloudy, with a low around 31.
Tuesday
Partly sunny, with a high near 50.
Tuesday Night
Mostly cloudy, with a low around 35.
Wednesday
A slight chance of rain. Mostly cloudy, with a high near 52.
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ABOUT THIS FORECAST

 
Point Forecast:
20 Miles S Brightwood OR
 45.07°N 122.04°W (Elev. 1483 ft)
Last Update:
1:45 am PST Dec 25, 2025
Forecast Valid:
2am PST Dec 25, 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