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 >

Current conditions at

Gary Cooper Bridge I-15 MP 242 (MTYEP)

Lat: 47.13948°NLon: 111.85908°WElev: 3427.0ft.

NA

24°F

-4°C

Humidity 86%
Wind Speed N 13 MPH
Barometer NA
Dewpoint 20°F (-7°C)
Visibility NA
Wind Chill12°F (-11°C)
Last update 24 Dec 09:15 AM MST
Extended Forecast for

9 Miles WSW Cascade MT

  • Today

    Today: Mostly sunny, with a high near 41. South wind 9 to 11 mph, with gusts as high as 18 mph.

    High: 41 °F

    Mostly Sunny

  • Tonight

    Tonight: Rain and snow before 11pm, then rain, snow, and freezing rain between 11pm and midnight, then rain and snow after midnight. Low around 21. South southwest wind around 11 mph. Chance of precipitation is 80%. Little or no ice accumulation expected. New snow accumulation of less than a half inch possible.

    Low: 21 °F

    Wintry Mix

  • Christmas Day

    Christmas Day: A chance of rain and snow, mainly between 10am and 11am. Partly sunny, with a high near 42. South southwest wind around 14 mph, with gusts as high as 22 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 42 °F

    Chance
    Rain/Snow
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 32. South southwest wind 14 to 20 mph, with gusts as high as 25 mph.

    Low: 32 °F

    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of snow after 11am. Partly sunny, with a high near 37. Breezy, with a south southwest wind 20 to 23 mph, with gusts as high as 33 mph.

    High: 37 °F

    Slight Chance
    Snow and
    Breezy

  • Friday Night

    Friday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 6. Breezy, with a southwest wind 25 to 29 mph, with gusts as high as 37 mph. New snow accumulation of less than a half inch possible.

    Low: 6 °F

    Chance Snow
    and Breezy

  • Saturday

    Saturday: A 30 percent chance of snow before 11am. Partly sunny, with a high near 18. Blustery, with a west northwest wind 20 to 25 mph becoming north 10 to 15 mph in the morning. Winds could gust as high as 31 mph. New snow accumulation of less than a half inch possible.

    High: 18 °F

    Chance Snow
    and Blustery
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 8. North northeast wind 8 to 14 mph becoming south southwest after midnight.

    Low: 8 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 28.

    High: 28 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 41. South wind 9 to 11 mph, with gusts as high as 18 mph.
Tonight
Rain and snow before 11pm, then rain, snow, and freezing rain between 11pm and midnight, then rain and snow after midnight. Low around 21. South southwest wind around 11 mph. Chance of precipitation is 80%. Little or no ice accumulation expected. New snow accumulation of less than a half inch possible.
Christmas Day
A chance of rain and snow, mainly between 10am and 11am. Partly sunny, with a high near 42. South southwest wind around 14 mph, with gusts as high as 22 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Thursday Night
Mostly cloudy, with a low around 32. South southwest wind 14 to 20 mph, with gusts as high as 25 mph.
Friday
A 20 percent chance of snow after 11am. Partly sunny, with a high near 37. Breezy, with a south southwest wind 20 to 23 mph, with gusts as high as 33 mph.
Friday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 6. Breezy, with a southwest wind 25 to 29 mph, with gusts as high as 37 mph. New snow accumulation of less than a half inch possible.
Saturday
A 30 percent chance of snow before 11am. Partly sunny, with a high near 18. Blustery, with a west northwest wind 20 to 25 mph becoming north 10 to 15 mph in the morning. Winds could gust as high as 31 mph. New snow accumulation of less than a half inch possible.
Saturday Night
Partly cloudy, with a low around 8. North northeast wind 8 to 14 mph becoming south southwest after midnight.
Sunday
Partly sunny, with a high near 28.
Sunday Night
Partly cloudy, with a low around 23. Breezy.
Monday
Partly sunny, with a high near 35. Breezy.
Monday Night
Mostly cloudy, with a low around 29. Breezy.
Tuesday
Mostly cloudy, with a high near 39. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles WSW Cascade MT
 47.23°N 111.88°W (Elev. 5600 ft)
Last Update:
9:22 am MST Dec 24, 2025
Forecast Valid:
9am MST Dec 24, 2025-6pm MST Dec 30, 2025
 
Forecast Discussion
 
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