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

ALDER RIDGE (ADFW1)

Lat: 46.26833°NLon: 117.49833°WElev: 4500.0ft.

NA

43°F

6°C

Humidity 100%
Wind Speed E 2 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Last update 24 Dec 04:10 AM PST
Extended Forecast for

12 Miles NNW Troy OR

  • Overnight

    Overnight: A 20 percent chance of rain.  Snow level 7000 feet. Mostly cloudy, with a steady temperature around 37. Southeast wind around 7 mph.

    Low: 37 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: A 30 percent chance of rain, mainly after 1pm.  Snow level 7400 feet lowering to 6700 feet in the afternoon . Mostly cloudy, with a high near 40. Southeast wind 10 to 16 mph becoming southwest in the afternoon. Winds could gust as high as 37 mph.

    High: 40 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A chance of rain and snow before 1am, then a chance of rain and snow after 4am.  Snow level 5300 feet. Mostly cloudy, with a low around 32. West wind around 6 mph becoming calm  in the evening.  Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 32 °F

    Chance
    Rain/Snow

  • Christmas Day

    Christmas Day: Rain and snow likely before 1pm, then rain likely between 1pm and 4pm, then rain and snow likely after 4pm.  Snow level 5700 feet. Mostly cloudy, with a high near 37. South wind 6 to 8 mph, with gusts as high as 18 mph.  Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 37 °F

    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: Rain and snow likely before 10pm, then snow.  Low around 30. South wind around 8 mph.  Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 30 °F

    Rain/Snow
    Likely then
    Snow

  • Friday

    Friday: Snow.  High near 32. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    High: 32 °F

    Snow

  • Friday Night

    Friday Night: A 50 percent chance of snow.  Mostly cloudy, with a low around 23. Breezy.  New snow accumulation of less than one inch possible.

    Low: 23 °F

    Chance Snow
    and Breezy

  • Saturday

    Saturday: A 30 percent chance of snow before 10am.  Mostly cloudy, with a high near 25.

    High: 25 °F

    Chance Snow
    then Partly
    Sunny

  • Saturday Night

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

    Low: 20 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of rain. Snow level 7000 feet. Mostly cloudy, with a steady temperature around 37. Southeast wind around 7 mph.
Wednesday
A 30 percent chance of rain, mainly after 1pm. Snow level 7400 feet lowering to 6700 feet in the afternoon . Mostly cloudy, with a high near 40. Southeast wind 10 to 16 mph becoming southwest in the afternoon. Winds could gust as high as 37 mph.
Wednesday Night
A chance of rain and snow before 1am, then a chance of rain and snow after 4am. Snow level 5300 feet. Mostly cloudy, with a low around 32. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%. Little or no snow accumulation expected.
Christmas Day
Rain and snow likely before 1pm, then rain likely between 1pm and 4pm, then rain and snow likely after 4pm. Snow level 5700 feet. Mostly cloudy, with a high near 37. South wind 6 to 8 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday Night
Rain and snow likely before 10pm, then snow. Low around 30. South wind around 8 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Friday
Snow. High near 32. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Friday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 23. Breezy. New snow accumulation of less than one inch possible.
Saturday
A 30 percent chance of snow before 10am. Mostly cloudy, with a high near 25.
Saturday Night
Mostly cloudy, with a low around 20.
Sunday
Partly sunny, with a high near 28.
Sunday Night
Mostly cloudy, with a low around 21.
Monday
Mostly sunny, with a high near 31.
Monday Night
Mostly cloudy, with a low around 23.
Tuesday
Mostly sunny, with a high near 34.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles NNW Troy OR
 46.11°N 117.55°W (Elev. 5226 ft)
2:47 am PST Dec 24, 2025
4am PST Dec 24, 2025-6pm PST Dec 30, 2025
 
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Additional Resources

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Hourly Weather Forecast

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