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 >

Hazardous Weather Conditions

Current conditions at

PLAINS (PLAM8)

Lat: 47.46622°NLon: 114.87961°WElev: 2481.0ft.

NA

42°F

6°C

Humidity 94%
Wind Speed SE 3 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Last update 25 Dec 08:26 PM MST
Extended Forecast for

6 Miles SE Plains MT

Winter Weather Advisory December 26, 08:00am until December 27, 02:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • Tonight

    Tonight: A chance of rain before 1am, then a slight chance of rain and snow after 5am. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 35. South southwest wind 3 to 5 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 35 °F

    Chance Rain
    then Slight
    Chance
    Rain/Snow and
    Patchy Fog

  • Friday

    Friday: Rain, possibly mixed with snow. Patchy fog before 8am. Snow level 4100 feet lowering to 3300 feet in the afternoon . High near 42. Light and variable wind becoming south 13 to 18 mph in the morning. Winds could gust as high as 29 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 42 °F

    Rain/Snow and
    Patchy Fog

  • Friday Night

    Friday Night: Snow, possibly mixed with rain, becoming all snow after 11pm. Low around 27. Southwest wind 8 to 16 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    Low: 27 °F

    Rain/Snow
    then Snow

  • Saturday

    Saturday: A 40 percent chance of snow. Partly sunny, with a high near 31. West wind 9 to 13 mph. New snow accumulation of less than a half inch possible.

    High: 31 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 15. West wind around 6 mph becoming calm in the evening.

    Low: 15 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 30.

    High: 30 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 19.

    Low: 19 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 34.

    High: 34 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A chance of rain before 1am, then a slight chance of rain and snow after 5am. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 35. South southwest wind 3 to 5 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Friday
Rain, possibly mixed with snow. Patchy fog before 8am. Snow level 4100 feet lowering to 3300 feet in the afternoon . High near 42. Light and variable wind becoming south 13 to 18 mph in the morning. Winds could gust as high as 29 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Friday Night
Snow, possibly mixed with rain, becoming all snow after 11pm. Low around 27. Southwest wind 8 to 16 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Saturday
A 40 percent chance of snow. Partly sunny, with a high near 31. West wind 9 to 13 mph. New snow accumulation of less than a half inch possible.
Saturday Night
Partly cloudy, with a low around 15. West wind around 6 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 30.
Sunday Night
Partly cloudy, with a low around 19.
Monday
Partly sunny, with a high near 34.
Monday Night
Mostly cloudy, with a low around 25.
Tuesday
Mostly cloudy, with a high near 38.
Tuesday Night
Mostly cloudy, with a low around 28.
Wednesday
A slight chance of rain and snow. Snow level 2900 feet rising to 4100 feet in the afternoon. Mostly cloudy, with a high near 42.
Wednesday Night
A chance of rain and snow. Snow level 4300 feet lowering to 3600 feet after midnight . Mostly cloudy, with a low around 32.
New Year's Day
A chance of rain and snow. Snow level 3400 feet rising to 4000 feet in the afternoon. Mostly cloudy, with a high near 42.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SE Plains MT
 47.39°N 114.79°W (Elev. 2598 ft)
Last Update:
1:01 pm MST Dec 25, 2025
Forecast Valid:
9pm MST Dec 25, 2025-6pm MST Jan 1, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation