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 >

Current conditions at

LIBBY (LBBM8)

Lat: 48.40361°NLon: 115.53917°WElev: 2070.0ft.

NA

32°F

0°C

Humidity 99%
Wind Speed ENE 0 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 09 Dec 10:25 PM MST
Extended Forecast for

18 Miles SE Yaak 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

  • Tonight

    Low: 26 °F

    Chance Snow
    then Snow

  • Wednesday

    Wednesday: Snow before 11am, then rain.  Snow level rising to 6800 feet in the afternoon. High near 39. West southwest wind 13 to 21 mph, with gusts as high as 50 mph.  Chance of precipitation is 100%. New snow accumulation of around an inch possible.

    High: 39 °F

    Rain/Snow
    then Rain

  • Wednesday Night

    Wednesday Night: Rain.  Snow level 6900 feet lowering to 6000 feet after midnight . Low around 35. Breezy, with a southwest wind 20 to 22 mph, with gusts as high as 48 mph.  Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 35 °F

    Rain and
    Breezy

  • Thursday

    Thursday: Rain, possibly mixed with snow, becoming all snow after 11am.  High near 36. West wind 13 to 21 mph, with gusts as high as 44 mph.  Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 36 °F

    Rain/Snow
    then Snow
    Likely

  • Thursday Night

    Thursday Night: A 50 percent chance of snow.  Mostly cloudy, with a low around 29. West wind 6 to 10 mph, with gusts as high as 24 mph.  New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Chance Snow

  • Friday

    Friday: Snow.  High near 34. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    High: 34 °F

    Snow

  • Friday Night

    Friday Night: Rain and snow likely before 11pm, then a chance of snow.  Mostly cloudy, with a low around 27. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 27 °F

    Rain/Snow
    Likely then
    Chance Snow

  • Saturday

    Saturday: A chance of snow.  Mostly cloudy, with a high near 31.

    High: 31 °F

    Chance Snow

Detailed Forecast

Tonight
Snow, mainly after midnight. Temperature rising to around 32 by 5am. South southwest wind 7 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 1 to 3 inches possible.
Wednesday
Snow before 11am, then rain. Snow level rising to 6800 feet in the afternoon. High near 39. West southwest wind 13 to 21 mph, with gusts as high as 50 mph. Chance of precipitation is 100%. New snow accumulation of around an inch possible.
Wednesday Night
Rain. Snow level 6900 feet lowering to 6000 feet after midnight . Low around 35. Breezy, with a southwest wind 20 to 22 mph, with gusts as high as 48 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday
Rain, possibly mixed with snow, becoming all snow after 11am. High near 36. West wind 13 to 21 mph, with gusts as high as 44 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Thursday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 29. West wind 6 to 10 mph, with gusts as high as 24 mph. New snow accumulation of less than a half inch possible.
Friday
Snow. High near 34. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Friday Night
Rain and snow likely before 11pm, then a chance of snow. Mostly cloudy, with a low around 27. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Saturday
A chance of snow. Mostly cloudy, with a high near 31.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 29.
Sunday
A chance of snow. Mostly cloudy, with a high near 33.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 29.
Monday
Rain and snow likely. Mostly cloudy, with a high near 35.
Monday Night
Rain and snow. Snow level 5400 feet. Cloudy, with a low around 31.
Tuesday
Snow. Mostly cloudy, with a high near 33.
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ABOUT THIS FORECAST

 
Point Forecast:
18 Miles SE Yaak MT
 48.68°N 115.43°W (Elev. 5285 ft)
2:21 pm MST Dec 9, 2025
10pm MST Dec 9, 2025-6pm MST Dec 16, 2025
 
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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