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 >

7-Day Forecast 42.15°N 121.72°W (Text-Only)
NWS Forecast for: 4 Miles S Altamont OR
Issued by: National Weather Service Medford, OR
Last Update: 3:41 am PST Dec 26, 2025
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  • Overnight

    Overnight: A 50 percent chance of snow.  Mostly cloudy, with a steady temperature around 32. South southeast wind around 13 mph, with gusts as high as 20 mph.  Total nighttime snow accumulation of less than one inch possible.

    Low: 32 °F

    Chance Snow



  • Friday

    Friday: A chance of snow before 1pm, then rain and snow likely.  Mostly cloudy, with a high near 39. South wind 13 to 15 mph, with gusts as high as 23 mph.  Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Chance Snow
    then
    Rain/Snow
    Likely

  • Friday
    Night

    Friday Night: A 30 percent chance of snow showers, mainly before 7pm.  Partly cloudy, with a low around 19. West southwest wind around 11 mph, with gusts as high as 18 mph.  New snow accumulation of less than a half inch possible.

    Low: 19 °F

    Chance Snow
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 35. West northwest wind around 11 mph, with gusts as high as 18 mph.

    High: 35 °F

    Mostly Sunny



  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 13. Light north wind.

    Low: 13 °F

    Partly Cloudy



  • Sunday

    Sunday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny



  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 13.

    Low: 13 °F

    Partly Cloudy



  • Monday

    Monday: Sunny, with a high near 40.

    High: 40 °F

    Sunny



  • Monday
    Night

    Monday Night: Mostly clear, with a low around 15.

    Low: 15 °F

    Mostly Clear





  • Overnight: A 50 percent chance of snow. Mostly cloudy, with a steady temperature around 32. South southeast wind around 13 mph, with gusts as high as 20 mph. Total nighttime snow accumulation of less than one inch possible.

    Friday: A chance of snow before 1pm, then rain and snow likely. Mostly cloudy, with a high near 39. South wind 13 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Friday Night: A 30 percent chance of snow showers, mainly before 7pm. Partly cloudy, with a low around 19. West southwest wind around 11 mph, with gusts as high as 18 mph. New snow accumulation of less than a half inch possible.

    Saturday: Mostly sunny, with a high near 35. West northwest wind around 11 mph, with gusts as high as 18 mph.

    Saturday Night: Partly cloudy, with a low around 13. Light north wind.

    Sunday: Mostly sunny, with a high near 36.

    Sunday Night: Partly cloudy, with a low around 13.

    Monday: Sunny, with a high near 40.

    Monday Night: Mostly clear, with a low around 15.

    Tuesday: Sunny, with a high near 43.

    Tuesday Night: Partly cloudy, with a low around 18.

    Wednesday: Partly sunny, with a high near 44.

    Wednesday Night: Mostly cloudy, with a low around 22.

    New Year's Day: A chance of rain and snow. Snow level rising to 4700 feet in the afternoon. Mostly cloudy, with a high near 43.



    4 Miles S Altamont OR
     42.15°N 121.72°W (Elev. 4140 ft)

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