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

SISTERS (K6K5)

Lat: 44.30445°NLon: 121.53909°WElev: 3168.0ft.

NA

30°F

-1°C

Humidity 92%
Wind Speed N 0 MPH
Barometer 29.6 in (1002.37 mb)
Dewpoint 28°F (-2°C)
Visibility NA
Last update 24 Dec 08:55 PM PST
Extended Forecast for

Camp Sherman OR

  • Tonight

    Tonight: A chance of rain and snow after 1am. Patchy fog between 1am and 4am. Snow level 3800 feet. Otherwise, increasing clouds, with a low around 29. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 29 °F

    Mostly Cloudy
    then Chance
    Rain/Snow and
    Patchy Fog

  • Christmas Day

    Christmas Day: A chance of rain and snow before 7am, then a chance of rain. Patchy fog between 7am and 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 48. Calm wind becoming south around 6 mph in the morning. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 48 °F

    Chance
    Rain/Snow and
    Patchy Fog
    then Chance
    Rain

  • Thursday Night

    Thursday Night: Rain likely before 1am, then snow likely, possibly mixed with rain. Snow level 3700 feet. Mostly cloudy, with a low around 29. Light southwest wind. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Rain Likely
    then
    Rain/Snow
    Likely

  • Friday

    Friday: Snow, possibly mixed with rain. Snow level 3300 feet. High near 43. Southwest wind 6 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 43 °F

    Rain/Snow

  • Friday Night

    Friday Night: Snow, mainly before 4am. Low around 27. West wind around 10 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 27 °F

    Snow

  • Saturday

    Saturday: A 40 percent chance of snow before 10am. Partly sunny, with a high near 38.

    High: 38 °F

    Chance Snow
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 20.

    Low: 20 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 41.

    High: 41 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 22.

    Low: 22 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of rain and snow after 1am. Patchy fog between 1am and 4am. Snow level 3800 feet. Otherwise, increasing clouds, with a low around 29. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%. Little or no snow accumulation expected.
Christmas Day
A chance of rain and snow before 7am, then a chance of rain. Patchy fog between 7am and 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 48. Calm wind becoming south around 6 mph in the morning. Chance of precipitation is 50%. Little or no snow accumulation expected.
Thursday Night
Rain likely before 1am, then snow likely, possibly mixed with rain. Snow level 3700 feet. Mostly cloudy, with a low around 29. Light southwest wind. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday
Snow, possibly mixed with rain. Snow level 3300 feet. High near 43. Southwest wind 6 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Friday Night
Snow, mainly before 4am. Low around 27. West wind around 10 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Saturday
A 40 percent chance of snow before 10am. Partly sunny, with a high near 38.
Saturday Night
Mostly cloudy, with a low around 20.
Sunday
Partly sunny, with a high near 41.
Sunday Night
Partly cloudy, with a low around 22.
Monday
Mostly sunny, with a high near 43.
Monday Night
Partly cloudy, with a low around 25.
Tuesday
Mostly sunny, with a high near 46.
Tuesday Night
Partly cloudy, with a low around 28.
Wednesday
Sunny, with a high near 50.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Camp Sherman OR
 44.48°N 121.63°W (Elev. 3028 ft)
Last Update:
9:15 pm PST Dec 24, 2025
Forecast Valid:
9pm PST Dec 24, 2025-6pm PST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation