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

Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Hazardous Weather Conditions

Current conditions at

PLAINS (PLAM8)

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

NA

35°F

2°C

Humidity 100%
Wind Speed E 0 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Last update 10 Dec 04:26 AM MST
Extended Forecast for

Plains MT

Flood Watch until December 11, 05:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch until December 11, 05:00pm

    NOW until 5:00pm Thu

    Flood Watch

  • Overnight

    Low: 33 °F

    Rain

  • Wednesday

    Wednesday: Rain, mainly after 11am. High near 50. Southeast wind 5 to 13 mph becoming west southwest in the afternoon. Winds could gust as high as 41 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 50 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain. Low around 45. Southwest wind around 15 mph, with gusts as high as 44 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 45 °F

    Rain

  • Thursday

    Thursday: Rain. High near 48. West wind 10 to 13 mph, with gusts as high as 39 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 48 °F

    Rain

  • Thursday Night

    Thursday Night: Rain likely before 5am, then rain and snow likely. Cloudy, with a low around 41. West southwest wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 41 °F

    Rain Likely
    then
    Rain/Snow
    Likely

  • Friday

    Friday: Rain and snow likely, becoming all rain after 8am. Cloudy, with a high near 50. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 50 °F

    Rain/Snow
    Likely then
    Chance Rain

  • Friday Night

    Friday Night: A 30 percent chance of rain. Mostly cloudy, with a low around 39. New precipitation amounts of less than a tenth of an inch possible.

    Low: 39 °F

    Chance Rain

  • Saturday

    Saturday: A slight chance of rain before 11am. Mostly cloudy, with a high near 50.

    High: 50 °F

    Slight Chance
    Rain then
    Partly Sunny

Detailed Forecast

Overnight
Rain. Low around 33. Light east southeast wind. Chance of precipitation is 100%.
Wednesday
Rain, mainly after 11am. High near 50. Southeast wind 5 to 13 mph becoming west southwest in the afternoon. Winds could gust as high as 41 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Rain. Low around 45. Southwest wind around 15 mph, with gusts as high as 44 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Rain. High near 48. West wind 10 to 13 mph, with gusts as high as 39 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain likely before 5am, then rain and snow likely. Cloudy, with a low around 41. West southwest wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Friday
Rain and snow likely, becoming all rain after 8am. Cloudy, with a high near 50. Chance of precipitation is 70%. Little or no snow accumulation expected.
Friday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 39. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A slight chance of rain before 11am. Mostly cloudy, with a high near 50.
Saturday Night
Mostly cloudy, with a low around 34.
Sunday
A chance of rain after 11am. Partly sunny, with a high near 50.
Sunday Night
A slight chance of rain. Mostly cloudy, with a low around 36.
Monday
A chance of rain. Mostly cloudy, with a high near 48.
Monday Night
Rain. Mostly cloudy, with a low around 37.
Tuesday
Rain likely. Mostly cloudy, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Plains MT
 47.44°N 114.87°W (Elev. 2598 ft)
Last Update:
1:02 am MST Dec 10, 2025
Forecast Valid:
5am MST Dec 10, 2025-6pm MST Dec 16, 2025
 
Forecast Discussion
 
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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