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

33°F

1°C

Humidity 100%
Wind Speed WNW 0 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Last update 24 Dec 06:25 AM MST
Extended Forecast for

Libby MT

  • Today

    Today: Rain likely, mainly after 2pm. Patchy fog before 3pm, then patchy fog after 4pm. Otherwise, mostly cloudy, with a high near 43. Calm wind. Chance of precipitation is 70%.

    High: 43 °F

    Rain Likely
    and Patchy
    Fog

  • Tonight

    Tonight: Rain likely, mainly before 8pm. Patchy fog. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 31. Calm wind. Chance of precipitation is 60%.

    Low: 31 °F

    Rain Likely
    and Patchy
    Fog then
    Patchy Fog

  • Christmas Day

    Christmas Day: A 40 percent chance of rain after 11am. Areas of fog before 2pm. Snow level 3100 feet rising to 4500 feet in the afternoon. Otherwise, increasing clouds, with a high near 42. Calm wind.

    High: 42 °F

    Chance Rain
    and Areas 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 before 5pm, then rain, possibly mixed with snow. Patchy fog before 1pm. High near 41. Calm wind. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 41 °F

    Rain and
    Patchy Fog
    then
    Rain/Snow and
    Patchy Fog

  • Friday Night

    Friday Night: Rain, possibly mixed with snow, becoming all snow after 8pm. Low around 24. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 24 °F

    Rain/Snow
    then Chance
    Snow

  • Saturday

    Saturday: A 20 percent chance of snow before 11am. Mostly sunny, with a high near 34.

    High: 34 °F

    Slight Chance
    Snow then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 17.

    Low: 17 °F

    Mostly Cloudy

  • Sunday

    Sunday: Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 33.

    High: 33 °F

    Patchy Fog
    then Mostly
    Cloudy

Detailed Forecast

Today
Rain likely, mainly after 2pm. Patchy fog before 3pm, then patchy fog after 4pm. Otherwise, mostly cloudy, with a high near 43. Calm wind. Chance of precipitation is 70%.
Tonight
Rain likely, mainly before 8pm. Patchy fog. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 31. Calm wind. Chance of precipitation is 60%.
Christmas Day
A 40 percent chance of rain after 11am. Areas of fog before 2pm. Snow level 3100 feet rising to 4500 feet in the afternoon. Otherwise, increasing clouds, 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 before 5pm, then rain, possibly mixed with snow. Patchy fog before 1pm. High near 41. Calm wind. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Friday Night
Rain, possibly mixed with snow, becoming all snow after 8pm. Low around 24. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Saturday
A 20 percent chance of snow before 11am. Mostly sunny, with a high near 34.
Saturday Night
Mostly cloudy, with a low around 17.
Sunday
Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 33.
Sunday Night
Patchy fog between 8pm and 10pm. Otherwise, mostly cloudy, with a low around 21.
Monday
Patchy fog. Otherwise, partly sunny, with a high near 37.
Monday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 23.
Tuesday
Patchy fog. Otherwise, mostly cloudy, with a high near 38.
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ABOUT THIS FORECAST

 
Point Forecast:
Libby MT
 48.39°N 115.55°W (Elev. 2198 ft)
Last Update:
1:02 am MST Dec 24, 2025
Forecast Valid:
7am MST Dec 24, 2025-6pm MST Dec 30, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation