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

Major Winter Storm Ongoing in the Upper Midwest and Great Lakes; Severe Weather Along the East Coast

A major winter storm will continue to bring blizzard conditions, heavy snowfall, icing, and strong winds through today across the Upper Midwest and Upper Great Lakes. Widespread severe storms are expected across the entire eastern U.S. with the highest threat over the interior Mid-Atlantic, where there is a risk for damaging wind gusts and a few tornadoes. Heat continues to build in the West. Read More >

Hazardous Weather Conditions

Current conditions at

Logan Pass Visitors Center (LGPVC)

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

NA

19°F

-7°C

Humidity 92%
Wind Speed NW 4 MPH
Barometer 29.77 in (1008.13 mb)
Dewpoint 17°F (-8°C)
Visibility NA
Wind Chill13°F (-11°C)
Last update 13 Mar 05:00 PM MDT
Extended Forecast for

10 Miles SW St Mary MT

Winter Weather Advisory March 16, 08:40am until March 16, 12:00pm
High Wind Warning March 16, 09:00am until March 17, 06:00pm
Click here for hazard details and duration
Winter Weather Advisory
High Wind Warning
  •  
    Winter Weather Advisory March 16, 08:40am until March 16, 12:00pm

    NOW until 12:00pm Mon

    Winter Weather Advisory

  • Today

    High: 34 °F

    Snow Likely
    and Patchy
    Blowing Snow

  • Tonight

    Tonight: Snow likely, mainly before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 30. Very windy, with a west southwest wind 38 to 43 mph increasing to 44 to 49 mph after midnight. Winds could gust as high as 70 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 30 °F

    Very Windy.
    Snow Likely
    then Chance
    Snow

  • Tuesday

    Tuesday: A 30 percent chance of snow, mainly after noon. Partly sunny, with a high near 35. Very windy, with a west southwest wind 42 to 47 mph decreasing to 36 to 41 mph in the afternoon. Winds could gust as high as 65 mph. New snow accumulation of less than a half inch possible.

    High: 35 °F

    Chance Snow
    and Very
    Windy

  • Tuesday Night

    Tuesday Night: Snow likely, mainly after midnight. Mostly cloudy, with a low around 33. Windy, with a west southwest wind 36 to 39 mph, with gusts as high as 55 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 33 °F

    Snow Likely
    and Windy

  • Wednesday

    Wednesday: A 50 percent chance of snow. Mostly cloudy, with a high near 36. Windy, with a west southwest wind 36 to 39 mph, with gusts as high as 55 mph. New snow accumulation of less than a half inch possible.

    High: 36 °F

    Chance Snow
    and Windy

  • Wednesday Night

    Wednesday Night: A chance of snow before 9pm, then a chance of rain and snow. Mostly cloudy, with a low around 34. Windy, with a west southwest wind around 37 mph, with gusts as high as 50 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 34 °F

    Chance
    Rain/Snow and
    Windy

  • Thursday

    Thursday: A chance of rain and snow before noon, then a slight chance of rain. Partly sunny, with a high near 41. Windy, with a west southwest wind 33 to 37 mph, with gusts as high as 55 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 41 °F

    Windy. Chance
    Rain/Snow
    then Slight
    Chance Rain

  • Thursday Night

    Thursday Night: A chance of rain. Mostly cloudy, with a low around 37. Windy, with a west southwest wind 34 to 38 mph, with gusts as high as 55 mph.

    Low: 37 °F

    Chance Rain
    and Windy

Detailed Forecast

Today
Snow likely, mainly after 4pm. Patchy blowing snow before noon. Mostly cloudy, with a high near 34. Windy, with a west southwest wind 34 to 38 mph, with gusts as high as 55 mph. Chance of precipitation is 60%. Total daytime snow accumulation of less than one inch possible.
Tonight
Snow likely, mainly before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 30. Very windy, with a west southwest wind 38 to 43 mph increasing to 44 to 49 mph after midnight. Winds could gust as high as 70 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Tuesday
A 30 percent chance of snow, mainly after noon. Partly sunny, with a high near 35. Very windy, with a west southwest wind 42 to 47 mph decreasing to 36 to 41 mph in the afternoon. Winds could gust as high as 65 mph. New snow accumulation of less than a half inch possible.
Tuesday Night
Snow likely, mainly after midnight. Mostly cloudy, with a low around 33. Windy, with a west southwest wind 36 to 39 mph, with gusts as high as 55 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Wednesday
A 50 percent chance of snow. Mostly cloudy, with a high near 36. Windy, with a west southwest wind 36 to 39 mph, with gusts as high as 55 mph. New snow accumulation of less than a half inch possible.
Wednesday Night
A chance of snow before 9pm, then a chance of rain and snow. Mostly cloudy, with a low around 34. Windy, with a west southwest wind around 37 mph, with gusts as high as 50 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Thursday
A chance of rain and snow before noon, then a slight chance of rain. Partly sunny, with a high near 41. Windy, with a west southwest wind 33 to 37 mph, with gusts as high as 55 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 37. Windy, with a west southwest wind 34 to 38 mph, with gusts as high as 55 mph.
Friday
Rain and snow likely. Mostly cloudy, with a high near 39. Windy.
Friday Night
Rain and snow likely, becoming all snow after 9pm. Mostly cloudy, with a low around 31. Windy.
Saturday
Snow likely. Mostly cloudy, with a high near 35. Windy.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 23. Windy.
Sunday
Mostly sunny, with a high near 32. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles SW St Mary MT
 48.64°N 113.61°W (Elev. 7448 ft)
Last Update:
3:57 am MDT Mar 16, 2026
Forecast Valid:
8am MDT Mar 16, 2026-6pm MDT Mar 22, 2026
 
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