Heavy Rainfall to Bring Flooding Threat to California; Heavy Snow in the Sierra

A strong atmospheric river will bring heavy rainfall to California through the holiday week. The heaviest rainfall is expected on Wednesday in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall is expected in the Sierra Nevada from the atmospheric river, raising concerns for major snow‐load impacts. Travel may be difficult to impossible over the passes. Read More >

Hazardous Weather Conditions

Current conditions at

SISTERS (K6K5)

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

NA

36°F

2°C

Humidity 80%
Wind Speed N 0 MPH
Barometer 29.65 in (1004.06 mb)
Dewpoint 30°F (-1°C)
Visibility NA
Last update 23 Dec 07:55 PM PST
Extended Forecast for

11 Miles NNE Mount Bachelor OR

  • Tonight

    Tonight: Rain and snow, mainly after 4am.  Snow level 6200 feet rising to 6900 feet. Temperature rising to around 38 by 5am. South wind 8 to 16 mph, with gusts as high as 34 mph.  Chance of precipitation is 80%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 34 °F

    Rain/Snow

  • Wednesday

    Wednesday: Rain and snow before 10am, then a chance of snow between 10am and 1pm.  Temperature falling to around 32 by 5pm. Windy, with a southwest wind 24 to 32 mph, with gusts as high as 55 mph.  Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 39 °F

    Windy.
    Rain/Snow
    then Chance
    Snow

  • Wednesday Night

    Wednesday Night: A 50 percent chance of snow after 10pm.  Mostly cloudy, with a low around 30. Southeast wind 8 to 13 mph, with gusts as high as 20 mph.  New snow accumulation of less than a half inch possible.

    Low: 30 °F

    Chance Snow

  • Christmas Day

    Christmas Day: Snow likely, mainly after 10am.  Partly sunny, with a high near 38. South wind 8 to 15 mph, with gusts as high as 32 mph.  Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 38 °F

    Snow Likely

  • Thursday Night

    Thursday Night: A 50 percent chance of snow.  Mostly cloudy, with a low around 28. South wind around 9 mph, with gusts as high as 23 mph.  New snow accumulation of less than one inch possible.

    Low: 28 °F

    Chance Snow

  • Friday

    Friday: Snow likely.  Partly sunny, with a high near 33. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    High: 33 °F

    Snow Likely

  • Friday Night

    Friday Night: A 50 percent chance of snow, mainly before 4am.  Mostly cloudy, with a low around 22. New snow accumulation of less than a half inch possible.

    Low: 22 °F

    Chance Snow

  • Saturday

    Saturday: A 20 percent chance of snow before 10am.  Mostly sunny, with a high near 31.

    High: 31 °F

    Slight Chance
    Snow then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 21.

    Low: 21 °F

    Partly Cloudy

Detailed Forecast

Tonight
Rain and snow, mainly after 4am. Snow level 6200 feet rising to 6900 feet. Temperature rising to around 38 by 5am. South wind 8 to 16 mph, with gusts as high as 34 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than a half inch possible.
Wednesday
Rain and snow before 10am, then a chance of snow between 10am and 1pm. Temperature falling to around 32 by 5pm. Windy, with a southwest wind 24 to 32 mph, with gusts as high as 55 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Wednesday Night
A 50 percent chance of snow after 10pm. Mostly cloudy, with a low around 30. Southeast wind 8 to 13 mph, with gusts as high as 20 mph. New snow accumulation of less than a half inch possible.
Christmas Day
Snow likely, mainly after 10am. Partly sunny, with a high near 38. South wind 8 to 15 mph, with gusts as high as 32 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Thursday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 28. South wind around 9 mph, with gusts as high as 23 mph. New snow accumulation of less than one inch possible.
Friday
Snow likely. Partly sunny, with a high near 33. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Friday Night
A 50 percent chance of snow, mainly before 4am. Mostly cloudy, with a low around 22. New snow accumulation of less than a half inch possible.
Saturday
A 20 percent chance of snow before 10am. Mostly sunny, with a high near 31.
Saturday Night
Partly cloudy, with a low around 21.
Sunday
Partly sunny, with a high near 38.
Sunday Night
Mostly cloudy, with a low around 27.
Monday
Mostly sunny, with a high near 42.
Monday Night
Partly cloudy, with a low around 30.
Tuesday
Mostly sunny, with a high near 44.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NNE Mount Bachelor OR
 44.13°N 121.62°W (Elev. 5997 ft)
4:37 pm PST Dec 23, 2025
8pm PST Dec 23, 2025-6pm PST Dec 30, 2025
 
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Additional Resources

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