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

Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Current conditions at

LIBBY (LBBM8)

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

NA

35°F

2°C

Humidity 100%
Wind Speed W 0 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Last update 24 Dec 10:25 PM MST
Extended Forecast for

Libby MT

  • Tonight

    Tonight: A 20 percent chance of rain before midnight. Patchy fog. Otherwise, mostly cloudy, with a low around 33. Calm wind.

    Low: 33 °F

    Slight Chance
    Rain and
    Patchy Fog

  • Christmas Day

    Christmas Day: A 50 percent chance of rain, mainly after 3pm. Areas of fog before 2pm. Otherwise, mostly cloudy, with a high near 42. Calm wind.

    High: 42 °F

    Areas Fog
    then Chance
    Rain and
    Patchy Fog

  • Thursday Night

    Thursday Night: Rain. Patchy fog. Low around 33. Calm wind. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 33 °F

    Rain and
    Patchy Fog

  • Friday

    Friday: Rain. Patchy fog before 1pm. Snow level 3300 feet. High near 41. Calm wind. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 41 °F

    Rain and
    Patchy Fog

  • Friday Night

    Friday Night: Rain and snow, becoming all snow after 11pm. Low around 22. Calm wind becoming southwest around 5 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    Low: 22 °F

    Rain/Snow
    then Snow
    Likely

  • Saturday

    Saturday: A 30 percent chance of snow before 11am. Mostly sunny, with a high near 32. New snow accumulation of less than a half inch possible.

    High: 32 °F

    Chance Snow
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 13.

    Low: 13 °F

    Partly Cloudy

  • Sunday

    Sunday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 29.

    High: 29 °F

    Patchy Fog
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: Patchy fog between 8pm and 10pm. Otherwise, mostly cloudy, with a low around 17.

    Low: 17 °F

    Patchy Fog
    then Mostly
    Cloudy

Detailed Forecast

Tonight
A 20 percent chance of rain before midnight. Patchy fog. Otherwise, mostly cloudy, with a low around 33. Calm wind.
Christmas Day
A 50 percent chance of rain, mainly after 3pm. Areas of fog before 2pm. Otherwise, mostly cloudy, with a high near 42. Calm wind.
Thursday Night
Rain. Patchy fog. Low around 33. Calm wind. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Rain. Patchy fog before 1pm. Snow level 3300 feet. High near 41. Calm wind. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Rain and snow, becoming all snow after 11pm. Low around 22. Calm wind becoming southwest around 5 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Saturday
A 30 percent chance of snow before 11am. Mostly sunny, with a high near 32. New snow accumulation of less than a half inch possible.
Saturday Night
Partly cloudy, with a low around 13.
Sunday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 29.
Sunday Night
Patchy fog between 8pm and 10pm. Otherwise, mostly cloudy, with a low around 17.
Monday
Patchy fog between 8am and 9am. Otherwise, partly sunny, with a high near 34.
Monday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 20.
Tuesday
Patchy fog. Otherwise, partly sunny, with a high near 37.
Tuesday Night
Patchy fog. Otherwise, partly cloudy, with a low around 23.
Wednesday
A slight chance of rain and snow. Patchy fog. Snow level rising to 3200 feet in the afternoon. Otherwise, mostly sunny, with a high near 38.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Libby MT
 48.39°N 115.55°W (Elev. 2198 ft)
Last Update:
1:02 pm MST Dec 24, 2025
Forecast Valid:
11pm MST Dec 24, 2025-6pm MST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation