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

52°F

11°C

Humidity 43%
Wind Speed ESE 1 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 25 Dec 04:15 PM MST
Extended Forecast for

9 Miles WSW Cascade MT

  • Tonight

    Tonight: A slight chance of snow between midnight and 1am. Mostly cloudy, with a low around 33. South southwest wind 16 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 33 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Friday

    Friday: A 20 percent chance of snow between noon and 3pm. Mostly sunny, with a high near 39. Breezy, with a south southwest wind 20 to 28 mph, with gusts as high as 41 mph.

    High: 39 °F

    Slight Chance
    Snow and
    Breezy

  • Friday Night

    Friday Night: A 40 percent chance of snow, mainly after 11pm. Increasing clouds, with a low around 7. Breezy, with a southwest wind 22 to 24 mph, with gusts as high as 31 mph. New snow accumulation of less than a half inch possible.

    Low: 7 °F

    Chance Snow
    and Breezy

  • Saturday

    Saturday: Snow, mainly before 11am. High near 14. Wind chill values as low as -25. Blustery, with a north wind 15 to 22 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    High: 14 °F

    Snow and
    Blustery then
    Chance Snow

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 0. North wind 7 to 14 mph becoming south southwest after midnight. Winds could gust as high as 18 mph.

    Low: 0 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 21. South southwest wind 10 to 14 mph, with gusts as high as 21 mph.

    High: 21 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 18. Breezy, with a south southwest wind 16 to 22 mph, with gusts as high as 26 mph.

    Low: 18 °F

    Mostly Clear
    then Partly
    Cloudy and
    Breezy

  • Monday

    Monday: Mostly sunny, with a high near 30. Breezy, with a south southwest wind 20 to 23 mph, with gusts as high as 29 mph.

    High: 30 °F

    Mostly Sunny
    and Breezy
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 27. Breezy.

    Low: 27 °F

    Mostly Cloudy
    and Breezy

Detailed Forecast

Tonight
A slight chance of snow between midnight and 1am. Mostly cloudy, with a low around 33. South southwest wind 16 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Friday
A 20 percent chance of snow between noon and 3pm. Mostly sunny, with a high near 39. Breezy, with a south southwest wind 20 to 28 mph, with gusts as high as 41 mph.
Friday Night
A 40 percent chance of snow, mainly after 11pm. Increasing clouds, with a low around 7. Breezy, with a southwest wind 22 to 24 mph, with gusts as high as 31 mph. New snow accumulation of less than a half inch possible.
Saturday
Snow, mainly before 11am. High near 14. Wind chill values as low as -25. Blustery, with a north wind 15 to 22 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Saturday Night
Partly cloudy, with a low around 0. North wind 7 to 14 mph becoming south southwest after midnight. Winds could gust as high as 18 mph.
Sunday
Mostly sunny, with a high near 21. South southwest wind 10 to 14 mph, with gusts as high as 21 mph.
Sunday Night
Partly cloudy, with a low around 18. Breezy, with a south southwest wind 16 to 22 mph, with gusts as high as 26 mph.
Monday
Mostly sunny, with a high near 30. Breezy, with a south southwest wind 20 to 23 mph, with gusts as high as 29 mph.
Monday Night
Mostly cloudy, with a low around 27. Breezy.
Tuesday
Partly sunny, with a high near 36.
Tuesday Night
Mostly cloudy, with a low around 30.
Wednesday
Mostly cloudy, with a high near 35.
Wednesday Night
A slight chance of snow. Mostly cloudy, with a low around 24.
New Year's Day
A slight chance of snow. Mostly cloudy, with a high near 32.
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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:
3:52 pm MST Dec 25, 2025
Forecast Valid:
4pm MST Dec 25, 2025-6pm MST Jan 1, 2026
 
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Additional Resources

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Chance of Precipitation