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

Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. 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 86%
Wind Speed ESE 5 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Wind Chill39°F (4°C)
Last update 07 Dec 11:26 PM MST
Extended Forecast for

Plains MT

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

  • Overnight

    Overnight: A 30 percent chance of rain. Patchy fog. Otherwise, cloudy, with a low around 36. Southwest wind 6 to 8 mph, with gusts as high as 21 mph.

    Low: 36 °F

    Chance Rain
    and Patchy
    Fog

  • Monday

    Monday: Rain, mainly after 11am. Patchy fog before 8am. High near 46. Southwest wind 6 to 9 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 46 °F

    Rain and
    Patchy Fog

  • Monday Night

    Monday Night: Rain. Patchy fog before 11pm. Low around 39. West southwest wind 9 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 39 °F

    Rain and
    Patchy Fog

  • Tuesday

    Tuesday: Rain likely, mainly before 11am. Mostly cloudy, with a high near 47. West southwest wind around 10 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 47 °F

    Rain Likely
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: Rain. Widespread fog, mainly after 2am. Low around 33. West southwest wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 33 °F

    Rain and Fog

  • Wednesday

    Wednesday: Rain. Widespread fog before 8am. High near 44. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 44 °F

    Rain and Fog

  • Wednesday Night

    Wednesday Night: Rain and snow likely. Mostly cloudy, with a low around 28. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Rain/Snow
    Likely

  • Thursday

    Thursday: A chance of rain and snow. Snow level 3500 feet. Mostly cloudy, with a high near 38.

    High: 38 °F

    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A chance of rain and snow. Snow level 3500 feet. Mostly cloudy, with a low around 25.

    Low: 25 °F

    Chance
    Rain/Snow

Detailed Forecast

Overnight
A 30 percent chance of rain. Patchy fog. Otherwise, cloudy, with a low around 36. Southwest wind 6 to 8 mph, with gusts as high as 21 mph.
Monday
Rain, mainly after 11am. Patchy fog before 8am. High near 46. Southwest wind 6 to 9 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Rain. Patchy fog before 11pm. Low around 39. West southwest wind 9 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Tuesday
Rain likely, mainly before 11am. Mostly cloudy, with a high near 47. West southwest wind around 10 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Rain. Widespread fog, mainly after 2am. Low around 33. West southwest wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Rain. Widespread fog before 8am. High near 44. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Rain and snow likely. Mostly cloudy, with a low around 28. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Thursday
A chance of rain and snow. Snow level 3500 feet. Mostly cloudy, with a high near 38.
Thursday Night
A chance of rain and snow. Snow level 3500 feet. Mostly cloudy, with a low around 25.
Friday
A chance of rain and snow. Cloudy, with a high near 40.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 32.
Saturday
A chance of rain and snow. Mostly cloudy, with a high near 45.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 33.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 44.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Plains MT
 47.44°N 114.87°W (Elev. 2598 ft)
Last Update:
1:01 pm MST Dec 7, 2025
Forecast Valid:
12am MST Dec 8, 2025-6pm MST Dec 14, 2025
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation