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

BOORMAN (BOOM8)

Lat: 48.14389°NLon: 114.71806°WElev: 3963.0ft.

NA

29°F

-2°C

Humidity 100%
Wind Speed N 0 MPH
Barometer NA
Dewpoint 29°F (-2°C)
Visibility NA
Last update 24 Dec 05:15 AM MST
Extended Forecast for

4 Miles S Happys Inn MT

  • Today

    Today: A chance of rain and snow, mainly after 2pm.  Mostly cloudy, with a high near 38. South southeast wind 3 to 6 mph.  Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 38 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Tonight

    Tonight: Rain and snow likely before 11pm, then a slight chance of snow between 11pm and midnight.  Snow level 6500 feet lowering to 4800 feet after midnight . Cloudy, then gradually becoming partly cloudy, with a low around 30. South wind around 6 mph becoming calm  after midnight.  Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 30 °F

    Rain/Snow
    Likely then
    Mostly Cloudy

  • Christmas Day

    Christmas Day: A chance of snow before 2pm, then a chance of rain.  Mostly cloudy, with a high near 38. Light south southeast wind.  Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 38 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Rain before 8pm, then rain and snow between 8pm and 2am, then snow likely after 2am.  Snow level 5500 feet lowering to 4800 feet after midnight . Low around 31. South southwest wind 6 to 8 mph.  Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 31 °F

    Rain/Snow

  • Friday

    Friday: Snow.  High near 35. South southwest wind 7 to 11 mph, with gusts as high as 21 mph.  Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 35 °F

    Snow

  • Friday Night

    Friday Night: Snow.  Low around 22. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    Low: 22 °F

    Snow then
    Snow Likely

  • Saturday

    Saturday: A 20 percent chance of snow before 11am.  Mostly sunny, with a high near 25.

    High: 25 °F

    Slight Chance
    Snow then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 17.

    Low: 17 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 27.

    High: 27 °F

    Mostly Cloudy

Detailed Forecast

Today
A chance of rain and snow, mainly after 2pm. Mostly cloudy, with a high near 38. South southeast wind 3 to 6 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Tonight
Rain and snow likely before 11pm, then a slight chance of snow between 11pm and midnight. Snow level 6500 feet lowering to 4800 feet after midnight . Cloudy, then gradually becoming partly cloudy, with a low around 30. South wind around 6 mph becoming calm after midnight. Chance of precipitation is 60%. Little or no snow accumulation expected.
Christmas Day
A chance of snow before 2pm, then a chance of rain. Mostly cloudy, with a high near 38. Light south southeast wind. Chance of precipitation is 40%. Little or no snow accumulation expected.
Thursday Night
Rain before 8pm, then rain and snow between 8pm and 2am, then snow likely after 2am. Snow level 5500 feet lowering to 4800 feet after midnight . Low around 31. South southwest wind 6 to 8 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Friday
Snow. High near 35. South southwest wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Friday Night
Snow. Low around 22. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Saturday
A 20 percent chance of snow before 11am. Mostly sunny, with a high near 25.
Saturday Night
Mostly cloudy, with a low around 17.
Sunday
Mostly cloudy, with a high near 27.
Sunday Night
Mostly cloudy, with a low around 19.
Monday
Partly sunny, with a high near 31.
Monday Night
Mostly cloudy, with a low around 22.
Tuesday
Mostly cloudy, with a high near 33.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Happys Inn MT
 48.03°N 115.15°W (Elev. 4800 ft)
1:02 am MST Dec 24, 2025
6am MST Dec 24, 2025-6pm MST Dec 30, 2025
 
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Additional Resources

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