National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Likelihood of HISTORIC Northern Rockies 3-5 day precipitation and snowmelt this week in some valleys and west slopes resulting in poor drainage ponding and stream flooding threats along with rockslides. Several feet of heavy snow above 8000 feet possible.

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Hazardous Weather Conditions

Current conditions at

PLAINS (PLAM8)

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

NA

42°F

6°C

Humidity 88%
Wind Speed NNW 1 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Last update 08 Dec 03:26 PM MST
Extended Forecast for

5 Miles ENE Plains MT

Flood Watch December 8, 05:00pm until December 11, 05:00pm
Wind Advisory December 8, 08:00pm until December 9, 08:00am
Click here for hazard details and duration
Flood Watch
Wind Advisory

  • This Afternoon

    This Afternoon: Snow before 4pm, then rain and snow. Snow level 5400 feet. High near 38. Southwest wind around 17 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. Total daytime snow accumulation of less than a half inch possible.

    High: 38 °F

    Rain/Snow

  • Tonight

    Tonight: Rain and snow before 8pm, then rain between 8pm and 5am, then rain likely, possibly mixed with snow after 5am. Low around 33. Breezy, with a southwest wind 23 to 29 mph, with gusts as high as 50 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    Low: 33 °F

    Rain/Snow and
    Breezy

  • Tuesday

    Tuesday: Rain likely, possibly mixed with snow, becoming all snow after 8am. Mostly cloudy, with a temperature falling to around 31 by 4pm. Windy, with a west southwest wind 23 to 30 mph, with gusts as high as 50 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 37 °F⇓

    Rain/Snow
    Likely and
    Windy then
    Chance Snow
    and Breezy

  • Tuesday Night

    Tuesday Night: Snow. Low around 32. South southwest wind 8 to 11 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    Low: 32 °F

    Snow

  • Wednesday

    Wednesday: Rain and snow. Snow level 6200 feet. High near 38. Southwest wind 14 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

    High: 38 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: Rain and snow. Snow level 6000 feet. Low around 34. Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 34 °F

    Rain/Snow

  • Thursday

    Thursday: Rain likely, possibly mixed with snow. Snow level 5700 feet. Cloudy, with a high near 35. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 35 °F

    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: Snow likely. Cloudy, with a low around 31.

    Low: 31 °F

    Snow Likely

  • Friday

    Friday: A chance of snow before 11am, then a chance of rain and snow. Snow level rising to 6000 feet in the afternoon. Mostly cloudy, with a high near 36.

    High: 36 °F

    Chance
    Rain/Snow

Detailed Forecast

This Afternoon
Snow before 4pm, then rain and snow. Snow level 5400 feet. High near 38. Southwest wind around 17 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Rain and snow before 8pm, then rain between 8pm and 5am, then rain likely, possibly mixed with snow after 5am. Low around 33. Breezy, with a southwest wind 23 to 29 mph, with gusts as high as 50 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Tuesday
Rain likely, possibly mixed with snow, becoming all snow after 8am. Mostly cloudy, with a temperature falling to around 31 by 4pm. Windy, with a west southwest wind 23 to 30 mph, with gusts as high as 50 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Tuesday Night
Snow. Low around 32. South southwest wind 8 to 11 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Wednesday
Rain and snow. Snow level 6200 feet. High near 38. Southwest wind 14 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Wednesday Night
Rain and snow. Snow level 6000 feet. Low around 34. Chance of precipitation is 90%. Little or no snow accumulation expected.
Thursday
Rain likely, possibly mixed with snow. Snow level 5700 feet. Cloudy, with a high near 35. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Thursday Night
Snow likely. Cloudy, with a low around 31.
Friday
A chance of snow before 11am, then a chance of rain and snow. Snow level rising to 6000 feet in the afternoon. Mostly cloudy, with a high near 36.
Friday Night
A slight chance of rain and snow before 11pm, then a slight chance of rain. Snow level 6300 feet. Mostly cloudy, with a low around 30.
Saturday
A slight chance of rain and snow. Partly sunny, with a high near 35.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 31.
Sunday
A chance of snow. Mostly cloudy, with a high near 35.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 31.
Monday
Snow likely. Mostly cloudy, with a high near 36.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ENE Plains MT
 47.47°N 114.78°W (Elev. 5400 ft)
Last Update:
1:01 pm MST Dec 8, 2025
Forecast Valid:
3pm MST Dec 8, 2025-6pm MST Dec 15, 2025
 
Forecast Discussion
 
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