Tracking a Winter Storm; Unusual Early-Season Heat Wave in the Southwest

A major winter storm will organize across the Northern Plains today and then rapidly strengthen as it moves into the Great Lakes on Sunday. Heavy snow and blowing snow are likely to persist over the Great Lakes into Monday night. Dry and gusty winds will produce a critical fire risk across the central/southern Plains. An early heatwave will begin to intensify over the western U.S. into next week. Read More >

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

  • Tonight

    Tonight: Snow likely, mainly before 11pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around -5. Wind chill values as low as -20. North northeast wind 9 to 14 mph becoming west southwest after midnight.  Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.

    Low: -5 °F

    Snow Likely
    then Chance
    Snow

  • Sunday

    Sunday: Mostly sunny, with a high near 15. Wind chill values as low as -20. Breezy, with a west southwest wind 9 to 14 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 15 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Snow likely, mainly after midnight.  Mostly cloudy, with a low around 14. Wind chill values as low as -5. Windy, with a southwest wind 21 to 26 mph increasing to 27 to 32 mph after midnight. Winds could gust as high as 43 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 14 °F

    Chance Snow
    and Breezy
    then Snow
    Likely and
    Windy

  • Monday

    Monday: Snow likely, mainly before noon.  Mostly cloudy, with a high near 33. Wind chill values as low as zero. Windy, with a southwest wind 37 to 41 mph, with gusts as high as 60 mph.  Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 33 °F

    Snow Likely
    and Windy

  • Monday Night

    Monday Night: Snow likely, mainly before midnight.  Mostly cloudy, with a low around 31. Very windy, with a southwest wind 43 to 49 mph, with gusts as high as 70 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 31 °F

    Snow Likely
    and Very
    Windy

  • Tuesday

    Tuesday: A 40 percent chance of snow.  Partly sunny, with a high near 36. Very windy, with a west southwest wind 43 to 50 mph, with gusts as high as 70 mph.  Little or no snow accumulation expected.

    High: 36 °F

    Chance Snow
    and Very
    Windy

  • Tuesday Night

    Tuesday Night: A 50 percent chance of snow.  Mostly cloudy, with a low around 34. Windy, with a west southwest wind 34 to 41 mph, with gusts as high as 60 mph.  New snow accumulation of less than a half inch possible.

    Low: 34 °F

    Chance Snow
    and Windy

  • Wednesday

    Wednesday: A chance of snow.  Mostly cloudy, with a high near 37. Windy, with a west southwest wind around 34 mph, with gusts as high as 50 mph.

    High: 37 °F

    Chance Snow
    and Windy

  • Wednesday Night

    Wednesday Night: A chance of rain and snow.  Mostly cloudy, with a low around 35. Windy.

    Low: 35 °F

    Chance
    Rain/Snow and
    Windy

Detailed Forecast

Tonight
Snow likely, mainly before 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around -5. Wind chill values as low as -20. North northeast wind 9 to 14 mph becoming west southwest after midnight. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.
Sunday
Mostly sunny, with a high near 15. Wind chill values as low as -20. Breezy, with a west southwest wind 9 to 14 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 30 mph.
Sunday Night
Snow likely, mainly after midnight. Mostly cloudy, with a low around 14. Wind chill values as low as -5. Windy, with a southwest wind 21 to 26 mph increasing to 27 to 32 mph after midnight. Winds could gust as high as 43 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Monday
Snow likely, mainly before noon. Mostly cloudy, with a high near 33. Wind chill values as low as zero. Windy, with a southwest wind 37 to 41 mph, with gusts as high as 60 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Monday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 31. Very windy, with a southwest wind 43 to 49 mph, with gusts as high as 70 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Tuesday
A 40 percent chance of snow. Partly sunny, with a high near 36. Very windy, with a west southwest wind 43 to 50 mph, with gusts as high as 70 mph. Little or no snow accumulation expected.
Tuesday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 34. Windy, with a west southwest wind 34 to 41 mph, with gusts as high as 60 mph. New snow accumulation of less than a half inch possible.
Wednesday
A chance of snow. Mostly cloudy, with a high near 37. Windy, with a west southwest wind around 34 mph, with gusts as high as 50 mph.
Wednesday Night
A chance of rain and snow. Mostly cloudy, with a low around 35. Windy.
Thursday
A chance of rain and snow. Mostly cloudy, with a high near 39. Windy.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 37. Windy.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 42. Windy.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 36. Breezy.
Saturday
A chance of rain and snow. Partly sunny, with a high near 43. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles SW St Mary MT
 48.64°N 113.61°W (Elev. 7448 ft)
8:46 pm MDT Mar 14, 2026
9pm MDT Mar 14, 2026-6pm MDT Mar 21, 2026
 
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