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

33°F

1°C

Humidity 99%
Wind Speed W 1 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Last update 10 Dec 12:25 AM MST
Extended Forecast for

8 Miles NW Happys Inn 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: 31 °F

    Snow

  • Wednesday

    Wednesday: Snow before 8am, then rain.  Snow level rising to 7000 feet in the afternoon. High near 44. Southwest wind 13 to 17 mph, with gusts as high as 44 mph.  Chance of precipitation is 100%. Little or no snow accumulation expected.

    High: 44 °F

    Rain/Snow
    then Rain

  • Wednesday Night

    Wednesday Night: Rain.  Low around 40. Southwest wind around 18 mph, with gusts as high as 45 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 40 °F

    Rain

  • Thursday

    Thursday: Rain before 2pm, then a chance of rain and snow.  Snow level 6000 feet lowering to 5000 feet in the afternoon . High near 40. West southwest wind 13 to 15 mph, with gusts as high as 40 mph.  Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 40 °F

    Rain then
    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A chance of rain and snow before 8pm, then a chance of snow.  Mostly cloudy, with a low around 35. West southwest wind 6 to 8 mph, with gusts as high as 22 mph.  Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 35 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Friday

    Friday: Snow before 11am, then rain and snow likely.  High near 40. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 40 °F

    Rain/Snow

  • Friday Night

    Friday Night: A chance of rain and snow before 2am, then a chance of rain.  Snow level 5100 feet rising to 6200 feet after midnight. Mostly cloudy, with a low around 36. Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 36 °F

    Chance
    Rain/Snow

  • Saturday

    Saturday: A chance of rain, mainly before 11am.  Partly sunny, with a high near 42.

    High: 42 °F

    Chance Rain

Detailed Forecast

Overnight
Snow. Low around 31. South southeast wind 7 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of less than one inch possible.
Wednesday
Snow before 8am, then rain. Snow level rising to 7000 feet in the afternoon. High near 44. Southwest wind 13 to 17 mph, with gusts as high as 44 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Wednesday Night
Rain. Low around 40. Southwest wind around 18 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Rain before 2pm, then a chance of rain and snow. Snow level 6000 feet lowering to 5000 feet in the afternoon . High near 40. West southwest wind 13 to 15 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Thursday Night
A chance of rain and snow before 8pm, then a chance of snow. Mostly cloudy, with a low around 35. West southwest wind 6 to 8 mph, with gusts as high as 22 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Friday
Snow before 11am, then rain and snow likely. High near 40. Chance of precipitation is 80%. Little or no snow accumulation expected.
Friday Night
A chance of rain and snow before 2am, then a chance of rain. Snow level 5100 feet rising to 6200 feet after midnight. Mostly cloudy, with a low around 36. Chance of precipitation is 40%. Little or no snow accumulation expected.
Saturday
A chance of rain, mainly before 11am. Partly sunny, with a high near 42.
Saturday Night
A slight chance of rain after 11pm. Mostly cloudy, with a low around 34.
Sunday
A chance of rain. Snow level 5400 feet. Partly sunny, with a high near 42.
Sunday Night
A chance of rain and snow. Snow level 5500 feet. Mostly cloudy, with a low around 36.
Monday
Rain and snow likely. Snow level 5400 feet rising to 6000 feet in the afternoon. Mostly cloudy, with a high near 41.
Monday Night
Rain and snow. Cloudy, with a low around 37.
Tuesday
Rain and snow. Snow level 5200 feet lowering to 4500 feet in the afternoon . Mostly cloudy, with a high near 40.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles NW Happys Inn MT
 48.17°N 115.25°W (Elev. 4528 ft)
1:02 am MST Dec 10, 2025
1am MST Dec 10, 2025-6pm MST Dec 16, 2025
 
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Additional Resources

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