Major Winter Storm in the North-Central U.S.; Severe Weather from the Mid-South to Ohio Valley

A major winter storm will bring a swath of heavy snowfall, strong winds, blizzard conditions and freezing rain to the Northern Plains into the Great Lakes region. A line of storms will be capable of producing widespread damaging winds, tornadoes, and some large hail from the Mid-south to the Ohio Valley and the Southeast. Critical fire weather concerns shift to the southern Rockies and Plains. Read More >

Current conditions at

USCRN SITE NEAR ST. MARY 1SSW (MRYM8)

Lat: 48.74111°NLon: 113.43306°WElev: 4550.0ft.

NA

24°F

-4°C

Humidity 41%
Wind Speed NA 14 MPH
Barometer NA
Dewpoint 3°F (-16°C)
Visibility NA
Wind Chill12°F (-11°C)
Last update 15 Mar 03:10 PM MDT
Extended Forecast for

5 Miles WSW St Mary MT

Winter Weather Advisory March 16, 03:00am 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
  • Tonight

    Tonight: A 40 percent chance of snow after 1am.  Patchy blowing snow after midnight. Mostly cloudy, with a low around 13. Wind chill values as low as -5. Windy, with a west southwest wind 18 to 23 mph increasing to 26 to 31 mph after midnight. Winds could gust as high as 49 mph.  Total nighttime snow accumulation of less than a half inch possible.

    Low: 13 °F

    Chance Snow
    and Patchy
    Blowing Snow

  • Monday

    Monday: A 40 percent chance of snow, mainly after 4pm.  Areas of blowing snow before noon. Mostly cloudy, with a high near 32. Wind chill values as low as zero. Windy, with a west southwest wind 33 to 38 mph increasing to 39 to 44 mph in the afternoon. Winds could gust as high as 70 mph.  New snow accumulation of less than a half inch possible.

    High: 32 °F

    Chance Snow
    and Areas
    Blowing Snow

  • Monday Night

    Monday Night: A chance of rain and snow before midnight, then a slight chance of snow.  Mostly cloudy, with a low around 30. Very windy, with a west southwest wind 41 to 49 mph, with gusts as high as 80 mph.  Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    Low: 30 °F

    Chance
    Rain/Snow and
    Very Windy

  • Tuesday

    Tuesday: A slight chance of snow before 3pm, then a slight chance of rain and snow.  Partly sunny, with a high near 36. Very windy, with a west southwest wind 38 to 47 mph, with gusts as high as 75 mph.  Chance of precipitation is 20%.

    High: 36 °F

    Slight Chance
    Rain/Snow and
    Very Windy

  • Tuesday Night

    Tuesday Night: A chance of rain and snow.  Mostly cloudy, with a low around 33. Windy, with a west southwest wind 31 to 34 mph, with gusts as high as 60 mph.  Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 33 °F

    Chance
    Rain/Snow and
    Windy

  • Wednesday

    Wednesday: A chance of rain and snow before noon.  Mostly cloudy, with a high near 38. Windy, with a west southwest wind 34 to 37 mph, with gusts as high as 60 mph.  Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    High: 38 °F

    Windy. Chance
    Rain/Snow
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain, mainly after midnight.  Mostly cloudy, with a low around 35. Very windy, with a west southwest wind 38 to 46 mph, with gusts as high as 65 mph.

    Low: 35 °F

    Chance Rain
    and Very
    Windy

  • Thursday

    Thursday: A slight chance of rain.  Partly sunny, with a high near 42. Very windy, with a west southwest wind 37 to 47 mph, with gusts as high as 70 mph.

    High: 42 °F

    Slight Chance
    Rain and Very
    Windy

  • Thursday Night

    Thursday Night: A chance of rain before 3am, then a chance of rain and snow.  Mostly cloudy, with a low around 36. Very windy.

    Low: 36 °F

    Very Windy.
    Chance Rain
    then Chance
    Rain/Snow

Detailed Forecast

Tonight
A 40 percent chance of snow after 1am. Patchy blowing snow after midnight. Mostly cloudy, with a low around 13. Wind chill values as low as -5. Windy, with a west southwest wind 18 to 23 mph increasing to 26 to 31 mph after midnight. Winds could gust as high as 49 mph. Total nighttime snow accumulation of less than a half inch possible.
Monday
A 40 percent chance of snow, mainly after 4pm. Areas of blowing snow before noon. Mostly cloudy, with a high near 32. Wind chill values as low as zero. Windy, with a west southwest wind 33 to 38 mph increasing to 39 to 44 mph in the afternoon. Winds could gust as high as 70 mph. New snow accumulation of less than a half inch possible.
Monday Night
A chance of rain and snow before midnight, then a slight chance of snow. Mostly cloudy, with a low around 30. Very windy, with a west southwest wind 41 to 49 mph, with gusts as high as 80 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Tuesday
A slight chance of snow before 3pm, then a slight chance of rain and snow. Partly sunny, with a high near 36. Very windy, with a west southwest wind 38 to 47 mph, with gusts as high as 75 mph. Chance of precipitation is 20%.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 33. Windy, with a west southwest wind 31 to 34 mph, with gusts as high as 60 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Wednesday
A chance of rain and snow before noon. Mostly cloudy, with a high near 38. Windy, with a west southwest wind 34 to 37 mph, with gusts as high as 60 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Wednesday Night
A 30 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 35. Very windy, with a west southwest wind 38 to 46 mph, with gusts as high as 65 mph.
Thursday
A slight chance of rain. Partly sunny, with a high near 42. Very windy, with a west southwest wind 37 to 47 mph, with gusts as high as 70 mph.
Thursday Night
A chance of rain before 3am, then a chance of rain and snow. Mostly cloudy, with a low around 36. Very 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 33. Windy.
Saturday
A chance of rain and snow. Partly sunny, with a high near 42. Windy.
Saturday Night
A slight chance of snow. Mostly cloudy, with a low around 23. Windy.
Sunday
Mostly sunny, with a high near 39. Windy.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW St Mary MT
 48.73°N 113.53°W (Elev. 6778 ft)
2:27 pm MDT Mar 15, 2026
4pm MDT Mar 15, 2026-6pm MDT Mar 22, 2026
 
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Additional Resources

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