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 >

Current conditions at

LIBBY (LBBM8)

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

NA

33°F

1°C

Humidity 100%
Wind Speed WSW 0 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Last update 07 Dec 08:25 PM MST
Extended Forecast for

3 Miles SSE Libby MT

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

    Tonight: A 50 percent chance of rain, mainly after 11pm.  Widespread fog, mainly after 5am.  Otherwise, mostly cloudy, with a low around 34. South southeast wind 3 to 5 mph.

    Low: 34 °F

    Chance Rain
    and Fog

  • Monday

    Monday: Rain.  Widespread fog before 8am. High near 46. Light and variable wind.  Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 46 °F

    Rain and Fog

  • Monday Night

    Monday Night: Rain.  Patchy fog before 2am. Low around 36. Southwest wind 3 to 8 mph. Winds could gust as high as 21 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 36 °F

    Rain and
    Patchy Fog

  • Tuesday

    Tuesday: Rain likely, mainly before 11am.  Areas of fog after 5pm.  Otherwise, partly sunny, with a high near 47. West southwest wind 5 to 8 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%.

    High: 47 °F

    Rain Likely
    then Chance
    Rain and
    Areas Fog

  • Tuesday Night

    Tuesday Night: Rain.  Widespread fog, mainly after 8pm. Low around 31. Light southwest wind.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 31 °F

    Rain and Fog

  • Wednesday

    Wednesday: Rain before 5pm, then rain likely, possibly mixed with snow.  Widespread fog before 8am. High near 44. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 44 °F

    Rain and Fog
    then
    Rain/Snow
    Likely

  • Wednesday Night

    Wednesday Night: Rain and snow likely.  Snow level 4200 feet lowering to 3100 feet after midnight . Mostly cloudy, with a low around 25. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Rain/Snow
    Likely

  • Thursday

    Thursday: A chance of rain and snow.  Snow level 2700 feet. Partly sunny, with a high near 36.

    High: 36 °F

    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A chance of rain and snow before 11pm, then a chance of snow.  Patchy fog between 2am and 5am. Snow level 2800 feet.  Otherwise, mostly cloudy, with a low around 21.

    Low: 21 °F

    Chance
    Rain/Snow
    then Chance
    Snow and
    Patchy Fog

Detailed Forecast

Tonight
A 50 percent chance of rain, mainly after 11pm. Widespread fog, mainly after 5am. Otherwise, mostly cloudy, with a low around 34. South southeast wind 3 to 5 mph.
Monday
Rain. Widespread fog before 8am. High near 46. Light and variable wind. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Rain. Patchy fog before 2am. Low around 36. Southwest wind 3 to 8 mph. Winds could gust as high as 21 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
Rain likely, mainly before 11am. Areas of fog after 5pm. Otherwise, partly sunny, with a high near 47. West southwest wind 5 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Tuesday Night
Rain. Widespread fog, mainly after 8pm. Low around 31. Light southwest wind. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Rain before 5pm, then rain likely, possibly mixed with snow. Widespread fog before 8am. High near 44. Chance of precipitation is 90%. Little or no snow accumulation expected.
Wednesday Night
Rain and snow likely. Snow level 4200 feet lowering to 3100 feet after midnight . Mostly cloudy, with a low around 25. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday
A chance of rain and snow. Snow level 2700 feet. Partly sunny, with a high near 36.
Thursday Night
A chance of rain and snow before 11pm, then a chance of snow. Patchy fog between 2am and 5am. Snow level 2800 feet. Otherwise, mostly cloudy, with a low around 21.
Friday
A chance of snow before 8am, then a chance of rain and snow. Patchy fog before 11am. Snow level 2900 feet rising to 3700 feet in the afternoon. Otherwise, mostly cloudy, with a high near 37.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 29.
Saturday
A chance of rain and snow. Patchy fog. Otherwise, mostly cloudy, with a high near 43.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 30.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 43.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Libby MT
 48.35°N 115.51°W (Elev. 2244 ft)
1:01 pm MST Dec 7, 2025
9pm MST Dec 7, 2025-6pm MST Dec 14, 2025
 
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Additional Resources

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