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

ST. IGNATIUS (SIGM)

Lat: 47.31333°NLon: 114.09806°WElev: 2990.0ft.

NA

30°F

-1°C

Humidity 76%
Wind Speed NW 1 MPH
Barometer NA
Dewpoint 23°F (-5°C)
Visibility NA
Last update 15 Mar 02:00 PM MDT
Extended Forecast for

9 Miles E St. Ignatius MT

Winter Weather Advisory March 16, 12:00am until March 16, 12:00pm
Click here for hazard details and duration
Winter Weather Advisory
  • Tonight

    Tonight: Snow likely, mainly after 1am. The snow could be heavy at times.  Increasing clouds, with a low around 10. Wind chill values as low as -5. West wind 13 to 16 mph, with gusts as high as 23 mph.  Chance of precipitation is 70%. Total nighttime snow accumulation of 4 to 8 inches possible.

    Low: 10 °F

    Heavy Snow

  • Monday

    Monday: Snow. The snow could be heavy at times.  High near 28. West southwest wind 16 to 21 mph, with gusts as high as 31 mph.  Chance of precipitation is 90%. New snow accumulation of 8 to 12 inches possible.

    High: 28 °F

    Heavy Snow

  • Monday Night

    Monday Night: Snow likely before midnight.  Cloudy, with a low around 27. Breezy, with a west southwest wind around 23 mph, with gusts as high as 34 mph.  Chance of precipitation is 60%. New snow accumulation of around an inch possible.

    Low: 27 °F

    Breezy. Snow
    Likely then
    Mostly Cloudy

  • Tuesday

    Tuesday: A 50 percent chance of snow.  Mostly cloudy, with a high near 31. Breezy, with a west southwest wind 23 to 25 mph, with gusts as high as 38 mph.  New snow accumulation of 1 to 3 inches possible.

    High: 31 °F

    Chance Snow
    and Breezy

  • Tuesday Night

    Tuesday Night: Snow likely, mainly before midnight.  Cloudy, with a low around 29. Breezy, with a west southwest wind around 23 mph, with gusts as high as 34 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Breezy. Snow
    Likely then
    Chance Snow

  • Wednesday

    Wednesday: A 50 percent chance of snow.  Mostly cloudy, with a high near 33. Breezy.  New snow accumulation of less than a half inch possible.

    High: 33 °F

    Chance Snow
    and Breezy

  • Wednesday Night

    Wednesday Night: A chance of snow before 9pm, then a chance of rain.  Mostly cloudy, with a low around 30. Breezy.  Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 30 °F

    Breezy.
    Chance
    Rain/Snow
    then Slight
    Chance Rain

  • Thursday

    Thursday: A chance of rain before 9am, then a chance of rain and snow between 9am and noon, then a chance of rain after noon.  Snow level 8300 feet. Partly sunny, with a high near 43. Breezy.

    High: 43 °F

    Breezy.
    Chance
    Rain/Snow
    then Chance
    Rain

  • Thursday Night

    Thursday Night: A chance of rain.  Snow level 8500 feet. Mostly cloudy, with a low around 33. Breezy.

    Low: 33 °F

    Chance Rain
    and Breezy

Detailed Forecast

Tonight
Snow likely, mainly after 1am. The snow could be heavy at times. Increasing clouds, with a low around 10. Wind chill values as low as -5. West wind 13 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of 4 to 8 inches possible.
Monday
Snow. The snow could be heavy at times. High near 28. West southwest wind 16 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New snow accumulation of 8 to 12 inches possible.
Monday Night
Snow likely before midnight. Cloudy, with a low around 27. Breezy, with a west southwest wind around 23 mph, with gusts as high as 34 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Tuesday
A 50 percent chance of snow. Mostly cloudy, with a high near 31. Breezy, with a west southwest wind 23 to 25 mph, with gusts as high as 38 mph. New snow accumulation of 1 to 3 inches possible.
Tuesday Night
Snow likely, mainly before midnight. Cloudy, with a low around 29. Breezy, with a west southwest wind around 23 mph, with gusts as high as 34 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 33. Breezy. New snow accumulation of less than a half inch possible.
Wednesday Night
A chance of snow before 9pm, then a chance of rain. Mostly cloudy, with a low around 30. Breezy. Chance of precipitation is 40%. Little or no snow accumulation expected.
Thursday
A chance of rain before 9am, then a chance of rain and snow between 9am and noon, then a chance of rain after noon. Snow level 8300 feet. Partly sunny, with a high near 43. Breezy.
Thursday Night
A chance of rain. Snow level 8500 feet. Mostly cloudy, with a low around 33. Breezy.
Friday
A chance of rain before noon, then a chance of rain and snow. Snow level 8300 feet. Mostly cloudy, with a high near 42. Breezy.
Friday Night
Rain and snow likely. Mostly cloudy, with a low around 31. Breezy.
Saturday
A chance of snow. Mostly cloudy, with a high near 37. Breezy.
Saturday Night
A slight chance of snow. Partly cloudy, with a low around 22. Breezy.
Sunday
A chance of snow. Partly sunny, with a high near 33. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles E St. Ignatius MT
 47.31°N 113.9°W (Elev. 8199 ft)
2:01 pm MDT Mar 15, 2026
3pm MDT Mar 15, 2026-6pm MDT Mar 22, 2026
 
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Additional Resources

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