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

SISTERS (K6K5)

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

NA

32°F

0°C

Humidity 92%
Wind Speed N 0 MPH
Barometer 29.55 in (1000.68 mb)
Dewpoint 30°F (-1°C)
Visibility NA
Last update 25 Dec 03:55 AM PST
Extended Forecast for

Sisters OR

Winter Weather Advisory December 26, 04:00am until December 27, 07:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Overnight

    Overnight: A chance of rain and snow. Areas of fog. Otherwise, cloudy, with a low around 27. Calm wind. Chance of precipitation is 30%.

    Low: 27 °F

    Chance
    Rain/Snow and
    Areas Fog

  • Christmas Day

    Christmas Day: A chance of rain and snow before 7am, then a chance of rain. Areas of fog before 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 47. Calm wind becoming south 5 to 9 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 40%.

    High: 47 °F

    Chance
    Rain/Snow and
    Areas Fog
    then Chance
    Rain

  • Thursday Night

    Thursday Night: Snow likely, possibly mixed with rain, mainly after 10pm. Snow level 3500 feet. Mostly cloudy, with a low around 26. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Rain/Snow
    Likely

  • Friday

    Friday: Snow likely, possibly mixed with rain before 7am, then snow likely between 7am and 10am, then snow, possibly mixed with rain after 10am. Snow level 3400 feet. High near 42. West wind 5 to 10 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 42 °F

    Rain/Snow

  • Friday Night

    Friday Night: Snow, mainly before 4am. Low around 23. West wind 7 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.

    Low: 23 °F

    Snow

  • Saturday

    Saturday: A 40 percent chance of snow before 10am. Partly sunny, with a high near 37.

    High: 37 °F

    Chance Snow
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 18.

    Low: 18 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 20.

    Low: 20 °F

    Partly Cloudy

Detailed Forecast

Overnight
A chance of rain and snow. Areas of fog. Otherwise, cloudy, with a low around 27. Calm wind. Chance of precipitation is 30%.
Christmas Day
A chance of rain and snow before 7am, then a chance of rain. Areas of fog before 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 47. Calm wind becoming south 5 to 9 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 40%.
Thursday Night
Snow likely, possibly mixed with rain, mainly after 10pm. Snow level 3500 feet. Mostly cloudy, with a low around 26. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday
Snow likely, possibly mixed with rain before 7am, then snow likely between 7am and 10am, then snow, possibly mixed with rain after 10am. Snow level 3400 feet. High near 42. West wind 5 to 10 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Friday Night
Snow, mainly before 4am. Low around 23. West wind 7 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.
Saturday
A 40 percent chance of snow before 10am. Partly sunny, with a high near 37.
Saturday Night
Mostly cloudy, with a low around 18.
Sunday
Mostly sunny, with a high near 40.
Sunday Night
Partly cloudy, with a low around 20.
Monday
Mostly sunny, with a high near 44.
Monday Night
Mostly cloudy, with a low around 23.
Tuesday
Mostly sunny, with a high near 47.
Tuesday Night
Partly cloudy, with a low around 27.
Wednesday
Partly sunny, with a high near 49.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sisters OR
 44.29°N 121.58°W (Elev. 3261 ft)
Last Update:
4:20 am PST Dec 25, 2025
Forecast Valid:
4am PST Dec 25, 2025-6pm PST Dec 31, 2025
 
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Additional Resources

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