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

I84 WB at Cascade Locks MP44.57 (ODT78)

Lat: 45.66931°NLon: 121.88484°WElev: 194.0ft.

NA

44°F

7°C

Humidity 91%
Wind Speed S 0 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Last update 24 Dec 06:50 PM PST
Extended Forecast for

3 Miles W Cascade Locks OR

  • Tonight

    Tonight: A 30 percent chance of rain after 4am.  Mostly cloudy, with a low around 39. Breezy, with a south southeast wind 6 to 15 mph becoming northeast in the evening. Winds could gust as high as 30 mph.

    Low: 39 °F

    Partly Cloudy
    then Chance
    Rain and
    Breezy

  • Christmas Day

    Christmas Day: Rain.  High near 47. Breezy, with a northeast wind 13 to 18 mph decreasing to 7 to 12 mph in the afternoon. Winds could gust as high as 32 mph.  Chance of precipitation is 90%.

    High: 47 °F

    Rain and
    Breezy then
    Rain Likely

  • Thursday Night

    Thursday Night: Rain likely, mainly after 10pm.  Mostly cloudy, with a low around 38. East northeast wind around 7 mph.  Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Rain Likely

  • Friday

    Friday: Showers.  Snow level 3100 feet lowering to 2400 feet in the afternoon . High near 44. Breezy, with a west southwest wind 10 to 16 mph, with gusts as high as 31 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 44 °F

    Showers and
    Breezy

  • Friday Night

    Friday Night: Showers, mainly before 4am.  Snow level 1600 feet. Low around 36. Breezy, with a west wind around 18 mph, with gusts as high as 38 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 36 °F

    Showers and
    Breezy

  • Saturday

    Saturday: A chance of rain showers before 10am, then a slight chance of rain and snow showers between 10am and 1pm, then a slight chance of rain showers after 1pm.  Snow level 1200 feet rising to 1700 feet in the afternoon. Mostly cloudy, with a high near 42. Breezy.  Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 42 °F

    Chance
    Rain/Snow and
    Breezy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 30 percent chance of rain after 4am. Mostly cloudy, with a low around 39. Breezy, with a south southeast wind 6 to 15 mph becoming northeast in the evening. Winds could gust as high as 30 mph.
Christmas Day
Rain. High near 47. Breezy, with a northeast wind 13 to 18 mph decreasing to 7 to 12 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 90%.
Thursday Night
Rain likely, mainly after 10pm. Mostly cloudy, with a low around 38. East northeast wind around 7 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Showers. Snow level 3100 feet lowering to 2400 feet in the afternoon . High near 44. Breezy, with a west southwest wind 10 to 16 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Showers, mainly before 4am. Snow level 1600 feet. Low around 36. Breezy, with a west wind around 18 mph, with gusts as high as 38 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
A chance of rain showers before 10am, then a slight chance of rain and snow showers between 10am and 1pm, then a slight chance of rain showers after 1pm. Snow level 1200 feet rising to 1700 feet in the afternoon. Mostly cloudy, with a high near 42. Breezy. Chance of precipitation is 40%. Little or no snow accumulation expected.
Saturday Night
Mostly cloudy, with a low around 32.
Sunday
Partly sunny, with a high near 44.
Sunday Night
Mostly cloudy, with a low around 31.
Monday
Partly sunny, with a high near 44.
Monday Night
Partly cloudy, with a low around 33.
Tuesday
Partly sunny, with a high near 45.
Tuesday Night
Partly cloudy, with a low around 35.
Wednesday
A chance of rain. Mostly sunny, with a high near 46.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Cascade Locks OR
 45.67°N 121.94°W (Elev. 509 ft)
6:41 pm PST Dec 24, 2025
7pm PST Dec 24, 2025-6pm PST Dec 31, 2025
 
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Additional Resources

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