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

WHITE SULPHUR SPRING (WSRM8)

Lat: 46.54308°NLon: 110.9058°WElev: 5060.0ft.

NA

50°F

10°C

Humidity 37%
Wind Speed S 7 MPH
Barometer NA
Dewpoint 25°F (-4°C)
Visibility NA
Wind Chill47°F (8°C)
Last update 25 Dec 03:57 PM MST
Extended Forecast for

White Sulphur Springs MT

  • Tonight

    Tonight: A slight chance of rain before 3am, then a slight chance of rain and snow between 3am and 5am, then a slight chance of rain after 5am. Mostly cloudy, with a low around 34. South wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    Low: 34 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Friday

    Friday: A chance of rain and snow before 3pm, then a slight chance of snow between 3pm and 4pm. Mostly sunny, with a high near 45. South wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    High: 45 °F

    Chance
    Rain/Snow

  • Friday Night

    Friday Night: A 40 percent chance of snow, mainly after 11pm. Mostly cloudy, with a low around 21. South southwest wind around 13 mph, with gusts as high as 25 mph. New snow accumulation of less than a half inch possible.

    Low: 21 °F

    Chance Snow

  • Saturday

    Saturday: Snow likely, mainly before 11am. Mostly cloudy, with a high near 27. Wind chill values as low as -5. Southwest wind around 15 mph becoming northwest in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 27 °F

    Snow Likely
    then Chance
    Snow

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 2. West wind 6 to 13 mph, with gusts as high as 23 mph.

    Low: 2 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 26. West southwest wind 6 to 8 mph.

    High: 26 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 11. South southwest wind around 7 mph.

    Low: 11 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 35. South southwest wind 7 to 9 mph.

    High: 35 °F

    Mostly Sunny

  • Monday Night

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

    Low: 20 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A slight chance of rain before 3am, then a slight chance of rain and snow between 3am and 5am, then a slight chance of rain after 5am. Mostly cloudy, with a low around 34. South wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Friday
A chance of rain and snow before 3pm, then a slight chance of snow between 3pm and 4pm. Mostly sunny, with a high near 45. South wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Friday Night
A 40 percent chance of snow, mainly after 11pm. Mostly cloudy, with a low around 21. South southwest wind around 13 mph, with gusts as high as 25 mph. New snow accumulation of less than a half inch possible.
Saturday
Snow likely, mainly before 11am. Mostly cloudy, with a high near 27. Wind chill values as low as -5. Southwest wind around 15 mph becoming northwest in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Saturday Night
Partly cloudy, with a low around 2. West wind 6 to 13 mph, with gusts as high as 23 mph.
Sunday
Mostly sunny, with a high near 26. West southwest wind 6 to 8 mph.
Sunday Night
Mostly clear, with a low around 11. South southwest wind around 7 mph.
Monday
Mostly sunny, with a high near 35. South southwest wind 7 to 9 mph.
Monday Night
Mostly cloudy, with a low around 20.
Tuesday
Partly sunny, with a high near 41.
Tuesday Night
Mostly cloudy, with a low around 26.
Wednesday
Mostly cloudy, with a high near 43.
Wednesday Night
Mostly cloudy, with a low around 24.
New Year's Day
Mostly cloudy, with a high near 42.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
White Sulphur Springs MT
 46.55°N 110.89°W (Elev. 5098 ft)
Last Update:
3:52 pm MST Dec 25, 2025
Forecast Valid:
4pm MST Dec 25, 2025-6pm MST Jan 1, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation