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

37°F

3°C

Humidity 93%
Wind Speed WNW 4 MPH
Barometer 29.58 in (1001.69 mb)
Dewpoint 36°F (2°C)
Visibility NA
Wind Chill34°F (1°C)
Last update 25 Dec 11:55 AM PST
Extended Forecast for

12 Miles SW Mount Bachelor OR

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

    Christmas Day: Rain and snow likely, becoming all snow after 1pm.  Mostly cloudy, with a temperature falling to around 32 by 5pm. South wind 11 to 13 mph, with gusts as high as 33 mph.  Chance of precipitation is 70%. Total daytime snow accumulation of less than a half inch possible.

    High: 37 °F

    Rain/Snow
    Likely

  • Tonight

    Tonight: Snow likely, mainly after 10pm.  Mostly cloudy, with a low around 26. South wind around 8 mph, with gusts as high as 24 mph.  Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    Low: 26 °F

    Snow Likely

  • Friday

    Friday: Snow.  High near 33. Southwest wind 8 to 11 mph, with gusts as high as 30 mph.  Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    High: 33 °F

    Snow

  • Friday Night

    Friday Night: Snow.  Low around 22. West wind 10 to 13 mph, with gusts as high as 34 mph.  Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    Low: 22 °F

    Snow

  • Saturday

    Saturday: Snow likely, mainly before 10am.  Mostly cloudy, with a high near 27. West wind around 8 mph, with gusts as high as 23 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 27 °F

    Snow Likely
    then Chance
    Snow

  • Saturday Night

    Saturday Night: Patchy fog before 10pm.  Otherwise, mostly cloudy, with a low around 16.

    Low: 16 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 35.

    High: 35 °F

    Mostly Sunny

  • Sunday Night

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

    Low: 22 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

Detailed Forecast

Christmas Day
Rain and snow likely, becoming all snow after 1pm. Mostly cloudy, with a temperature falling to around 32 by 5pm. South wind 11 to 13 mph, with gusts as high as 33 mph. Chance of precipitation is 70%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Snow likely, mainly after 10pm. Mostly cloudy, with a low around 26. South wind around 8 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Friday
Snow. High near 33. Southwest wind 8 to 11 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Friday Night
Snow. Low around 22. West wind 10 to 13 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Saturday
Snow likely, mainly before 10am. Mostly cloudy, with a high near 27. West wind around 8 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Saturday Night
Patchy fog before 10pm. Otherwise, mostly cloudy, with a low around 16.
Sunday
Mostly sunny, with a high near 35.
Sunday Night
Partly cloudy, with a low around 22.
Monday
Mostly sunny, with a high near 41.
Monday Night
Mostly cloudy, with a low around 26.
Tuesday
Mostly sunny, with a high near 45.
Tuesday Night
Partly cloudy, with a low around 28.
Wednesday
Partly sunny, with a high near 45.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles SW Mount Bachelor OR
 43.83°N 121.85°W (Elev. 4797 ft)
11:56 am PST Dec 25, 2025
12pm PST Dec 25, 2025-6pm PST Dec 31, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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