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

Significant Severe Weather in the Upper Midwest; Blizzard Conditions in the Cascades; Heavy Rain and Thunderstorms in Hawaii

Significant severe thunderstorms, including the risk for strong to intense tornadoes, are expected across the Upper Midwest this afternoon and evening. An atmospheric river will bring blizzard conditions to the northern Cascades. A powerful Kona storm is expected to impact Hawaii today into Saturday, bringing heavy rainfall and strong winds. Read More >

Hazardous Weather Conditions

Current conditions at

Logan Pass Visitors Center (LGPVC)

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

NA

14°F

-10°C

Humidity 90%
Wind Speed W 8 MPH
Barometer 29.77 in (1008.13 mb)
Dewpoint 12°F (-11°C)
Visibility NA
Wind Chill3°F (-16°C)
Last update 10 Mar 01:00 PM MDT
Extended Forecast for

10 Miles W St Mary MT

Winter Storm Watch March 11, 06:00pm until March 13, 06:00pm
High Wind Warning March 11, 06:00pm until March 12, 03:00pm
Click here for hazard details and duration
Winter Storm Watch
High Wind Warning

  • This Afternoon

    This Afternoon: A 50 percent chance of snow. The snow could be heavy at times. Mostly cloudy, with a high near 12. Wind chill values as low as -10. Breezy, with a west wind 24 to 26 mph, with gusts as high as 36 mph. Total daytime snow accumulation of 3 to 5 inches possible.

    High: 12 °F

    Heavy Snow
    and Breezy

  • Tonight

    Tonight: A chance of snow before 9pm, then snow likely after 3am. The snow could be heavy at times. Mostly cloudy, with a low around 7. Wind chill values as low as -15. Breezy, with a west wind 24 to 26 mph, with gusts as high as 36 mph. Chance of precipitation is 60%. New snow accumulation of 3 to 5 inches possible.

    Low: 7 °F

    Breezy.
    Chance Snow
    then Heavy
    Snow

  • Wednesday

    Wednesday: Snow. The snow could be heavy at times. High near 22. Wind chill values as low as -10. Windy, with a west southwest wind 28 to 33 mph, with gusts as high as 47 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 7 inches possible.

    High: 22 °F

    Heavy Snow
    and Windy

  • Wednesday Night

    Wednesday Night: Snow. The snow could be heavy at times. Widespread blowing snow. Low around 11. Wind chill values as low as -5. Very windy, with a southwest wind 31 to 41 mph increasing to 45 to 55 mph after midnight. Winds could gust as high as 70 mph. Chance of precipitation is 100%. New snow accumulation of 10 to 14 inches possible.

    Low: 11 °F

    Heavy Snow
    and Blowing
    Snow

  • Thursday

    Thursday: Snow. Widespread blowing snow. High near 22. Very windy, with a west southwest wind 50 to 55 mph decreasing to 37 to 42 mph in the afternoon. Winds could gust as high as 80 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    High: 22 °F

    Snow and
    Blowing Snow

  • Thursday Night

    Thursday Night: Snow. The snow could be heavy at times. Widespread blowing snow, mainly before 3am. Low around 11. Windy, with a west wind 29 to 34 mph decreasing to 23 to 28 mph after midnight. Winds could gust as high as 45 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.

    Low: 11 °F

    Heavy Snow
    and Blowing
    Snow

  • Friday

    Friday: Snow. The snow could be heavy at times. High near 17. West southwest wind around 21 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.

    High: 17 °F

    Heavy Snow

  • Friday Night

    Friday Night: Snow. The snow could be heavy at times. Cloudy, with a low around 7. Breezy, with a west southwest wind 17 to 22 mph, with gusts as high as 30 mph.

    Low: 7 °F

    Heavy Snow
    and Breezy

  • Saturday

    Saturday: Snow. The snow could be heavy at times. Cloudy, with a high near 13. Blustery.

    High: 13 °F

    Heavy Snow
    and Blustery

Detailed Forecast

This Afternoon
A 50 percent chance of snow. The snow could be heavy at times. Mostly cloudy, with a high near 12. Wind chill values as low as -10. Breezy, with a west wind 24 to 26 mph, with gusts as high as 36 mph. Total daytime snow accumulation of 3 to 5 inches possible.
Tonight
A chance of snow before 9pm, then snow likely after 3am. The snow could be heavy at times. Mostly cloudy, with a low around 7. Wind chill values as low as -15. Breezy, with a west wind 24 to 26 mph, with gusts as high as 36 mph. Chance of precipitation is 60%. New snow accumulation of 3 to 5 inches possible.
Wednesday
Snow. The snow could be heavy at times. High near 22. Wind chill values as low as -10. Windy, with a west southwest wind 28 to 33 mph, with gusts as high as 47 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 7 inches possible.
Wednesday Night
Snow. The snow could be heavy at times. Widespread blowing snow. Low around 11. Wind chill values as low as -5. Very windy, with a southwest wind 31 to 41 mph increasing to 45 to 55 mph after midnight. Winds could gust as high as 70 mph. Chance of precipitation is 100%. New snow accumulation of 10 to 14 inches possible.
Thursday
Snow. Widespread blowing snow. High near 22. Very windy, with a west southwest wind 50 to 55 mph decreasing to 37 to 42 mph in the afternoon. Winds could gust as high as 80 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Thursday Night
Snow. The snow could be heavy at times. Widespread blowing snow, mainly before 3am. Low around 11. Windy, with a west wind 29 to 34 mph decreasing to 23 to 28 mph after midnight. Winds could gust as high as 45 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.
Friday
Snow. The snow could be heavy at times. High near 17. West southwest wind around 21 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.
Friday Night
Snow. The snow could be heavy at times. Cloudy, with a low around 7. Breezy, with a west southwest wind 17 to 22 mph, with gusts as high as 30 mph.
Saturday
Snow. The snow could be heavy at times. Cloudy, with a high near 13. Blustery.
Saturday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 1. Blustery.
Sunday
A chance of snow. Partly sunny, with a high near 16. Breezy.
Sunday Night
A chance of snow. Cloudy, with a low around 14. Breezy.
Monday
Snow likely. Cloudy, with a high near 30. Windy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles W St Mary MT
 48.72°N 113.66°W (Elev. 8760 ft)
Last Update:
1:26 pm MDT Mar 10, 2026
Forecast Valid:
1pm MDT Mar 10, 2026-6pm MDT Mar 16, 2026
 
Forecast Discussion
 
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Additional Resources

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