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

13 Miles WSW St Mary MT

  • Overnight

    Overnight: A slight chance of snow before 2am, then a chance of snow after 5am. Patchy fog before 2am. Otherwise, mostly cloudy, with a steady temperature around 29. South southwest wind around 7 mph. Chance of precipitation is 30%. Total nighttime snow accumulation of less than one inch possible.

    Low: 29 °F

    Chance Snow
    and Patchy
    Fog

  • Wednesday

    Wednesday: A chance of snow before 11am, then snow likely after 3pm. Partly sunny, with a high near 33. South southeast wind 8 to 10 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 33 °F

    Chance Snow
    then Snow
    Likely

  • Wednesday Night

    Wednesday Night: Snow likely, mainly before 1am. Mostly cloudy, with a low around 24. West wind 11 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    Low: 24 °F

    Snow Likely
    then Chance
    Snow

  • Christmas Day

    Christmas Day: A 40 percent chance of snow. Partly sunny, with a high near 32. West southwest wind 10 to 13 mph, with gusts as high as 21 mph. New snow accumulation of less than a half inch possible.

    High: 32 °F

    Chance Snow

  • Thursday Night

    Thursday Night: Snow likely, mainly after 11pm. Mostly cloudy, with a low around 26. West southwest wind 13 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    Low: 26 °F

    Snow Likely

  • Friday

    Friday: Snow. High near 28. Southwest wind 17 to 21 mph, with gusts as high as 39 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 7 inches possible.

    High: 28 °F

    Snow

  • Friday Night

    Friday Night: Snow. The snow could be heavy at times. Low around 3. Southwest wind 13 to 20 mph becoming north northwest after midnight. Winds could gust as high as 38 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

    Low: 3 °F

    Heavy Snow

  • Saturday

    Saturday: Snow likely, mainly before 11am. Partly sunny, with a high near 12. North wind 8 to 10 mph becoming west in the afternoon. Winds could gust as high as 18 mph.

    High: 12 °F

    Snow Likely

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 8.

    Low: 8 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A slight chance of snow before 2am, then a chance of snow after 5am. Patchy fog before 2am. Otherwise, mostly cloudy, with a steady temperature around 29. South southwest wind around 7 mph. Chance of precipitation is 30%. Total nighttime snow accumulation of less than one inch possible.
Wednesday
A chance of snow before 11am, then snow likely after 3pm. Partly sunny, with a high near 33. South southeast wind 8 to 10 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Wednesday Night
Snow likely, mainly before 1am. Mostly cloudy, with a low around 24. West wind 11 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Christmas Day
A 40 percent chance of snow. Partly sunny, with a high near 32. West southwest wind 10 to 13 mph, with gusts as high as 21 mph. New snow accumulation of less than a half inch possible.
Thursday Night
Snow likely, mainly after 11pm. Mostly cloudy, with a low around 26. West southwest wind 13 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Friday
Snow. High near 28. Southwest wind 17 to 21 mph, with gusts as high as 39 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 7 inches possible.
Friday Night
Snow. The snow could be heavy at times. Low around 3. Southwest wind 13 to 20 mph becoming north northwest after midnight. Winds could gust as high as 38 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.
Saturday
Snow likely, mainly before 11am. Partly sunny, with a high near 12. North wind 8 to 10 mph becoming west in the afternoon. Winds could gust as high as 18 mph.
Saturday Night
Mostly cloudy, with a low around 8.
Sunday
Mostly cloudy, with a high near 21.
Sunday Night
Mostly cloudy, with a low around 18.
Monday
Mostly cloudy, with a high near 24.
Monday Night
Mostly cloudy, with a low around 21.
Tuesday
A slight chance of snow. Mostly cloudy, with a high near 28.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
13 Miles WSW St Mary MT
 48.69°N 113.71°W (Elev. 6470 ft)
Last Update:
12:08 am MST Dec 24, 2025
Forecast Valid:
1am MST Dec 24, 2025-6pm MST Dec 30, 2025
 
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