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

Heavy Rainfall to Bring Flooding Threat to California; Heavy Snow in the Sierra

A strong atmospheric river will bring heavy rainfall to California through the holiday week. The heaviest rainfall is expected on Wednesday in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall is expected in the Sierra Nevada from the atmospheric river, raising concerns for major snow‐load impacts. Travel may be difficult to impossible over the passes. Read More >

Current conditions at

Logan Pass Visitors Center (LGPVC)

Lat: 48.6949°NLon: 113.7169°WElev: 6775.0ft.

NA

22°F

-6°C

Humidity 87%
Wind Speed W 19 MPH
Barometer 29.77 in (1008.13 mb)
Dewpoint 19°F (-7°C)
Visibility NA
Wind Chill7°F (-14°C)
Last update 22 Dec 01:00 PM MST
Extended Forecast for

14 Miles SW St Mary MT

  • Today

    Today: Snow likely, mainly after 5pm. Partly sunny, with a high near 30. South southwest wind 10 to 14 mph becoming southeast in the morning. Chance of precipitation is 60%. Total daytime snow accumulation of less than one inch possible.

    High: 30 °F

    Mostly Sunny
    then Snow
    Likely

  • Tonight

    Tonight: Snow, mainly before 1am. Low around 23. West southwest wind 14 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 23 °F

    Snow then
    Slight Chance
    Snow

  • Christmas Day

    Christmas Day: A 30 percent chance of snow. Partly sunny, with a high near 30. West southwest wind 13 to 15 mph, with gusts as high as 22 mph. New snow accumulation of around an inch possible.

    High: 30 °F

    Chance Snow

  • Thursday Night

    Thursday Night: Snow likely, mainly after 11pm. Mostly cloudy, with a low around 24. Breezy, with a west wind 16 to 23 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.

    Low: 24 °F

    Snow Likely
    and Breezy

  • Friday

    Friday: Snow. High near 25. Breezy, with a west southwest wind 23 to 26 mph, with gusts as high as 39 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.

    High: 25 °F

    Snow and
    Breezy

  • Friday Night

    Friday Night: Snow. The snow could be heavy at times. Low around 0. Windy, with a west southwest wind 29 to 33 mph, with gusts as high as 46 mph. Chance of precipitation is 100%. New snow accumulation of 8 to 12 inches possible.

    Low: 0 °F

    Heavy Snow
    and Windy

  • Saturday

    Saturday: Snow likely, mainly before 11am. Mostly cloudy, with a high near 7. Blustery, with a northwest wind 20 to 25 mph decreasing to 13 to 18 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    High: 7 °F

    Snow Likely
    and Blustery
    then Chance
    Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 3. West southwest wind 11 to 21 mph, with gusts as high as 26 mph.

    Low: 3 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 16. Breezy.

    High: 16 °F

    Mostly Cloudy
    and Breezy

Detailed Forecast

Today
Snow likely, mainly after 5pm. Partly sunny, with a high near 30. South southwest wind 10 to 14 mph becoming southeast in the morning. Chance of precipitation is 60%. Total daytime snow accumulation of less than one inch possible.
Tonight
Snow, mainly before 1am. Low around 23. West southwest wind 14 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Christmas Day
A 30 percent chance of snow. Partly sunny, with a high near 30. West southwest wind 13 to 15 mph, with gusts as high as 22 mph. New snow accumulation of around an inch possible.
Thursday Night
Snow likely, mainly after 11pm. Mostly cloudy, with a low around 24. Breezy, with a west wind 16 to 23 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.
Friday
Snow. High near 25. Breezy, with a west southwest wind 23 to 26 mph, with gusts as high as 39 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.
Friday Night
Snow. The snow could be heavy at times. Low around 0. Windy, with a west southwest wind 29 to 33 mph, with gusts as high as 46 mph. Chance of precipitation is 100%. New snow accumulation of 8 to 12 inches possible.
Saturday
Snow likely, mainly before 11am. Mostly cloudy, with a high near 7. Blustery, with a northwest wind 20 to 25 mph decreasing to 13 to 18 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Saturday Night
Mostly cloudy, with a low around 3. West southwest wind 11 to 21 mph, with gusts as high as 26 mph.
Sunday
Mostly cloudy, with a high near 16. Breezy.
Sunday Night
Mostly cloudy, with a low around 14. Breezy.
Monday
Mostly cloudy, with a high near 20. Breezy.
Monday Night
Mostly cloudy, with a low around 17. Breezy.
Tuesday
A slight chance of snow. Mostly cloudy, with a high near 24. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
14 Miles SW St Mary MT
 48.6°N 113.63°W (Elev. 8009 ft)
Last Update:
3:38 am MST Dec 24, 2025
Forecast Valid:
6am MST Dec 24, 2025-6pm MST Dec 30, 2025
 
Forecast Discussion
 
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