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

Prolonged dangerous winter storm conditions in the high country of western Montana and north-central Idaho later this week with localized damaging winds

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Current conditions at

ST. IGNATIUS (SIGM)

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

NA

30°F

-1°C

Humidity 72%
Wind Speed SSE 2 MPH
Barometer NA
Dewpoint 22°F (-6°C)
Visibility NA
Last update 09 Mar 09:00 PM MDT
Extended Forecast for

9 Miles E St. Ignatius MT

  • Tonight

    Tonight: Snow likely, mainly after 5am. The snow could be heavy at times. Mostly cloudy, with a low around 8. Wind chill values as low as -11. Breezy, with a west wind 17 to 22 mph, with gusts as high as 36 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of 2 to 4 inches possible.

    Low: 8 °F

    Heavy Snow
    and Breezy

  • Tuesday

    Tuesday: Snow. The snow could be heavy at times. High near 12. Wind chill values as low as -13. Windy, with a west wind 18 to 23 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 44 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 7 inches possible.

    High: 12 °F

    Heavy Snow
    and Windy

  • Tuesday Night

    Tuesday Night: Snow likely, mainly after midnight. Mostly cloudy, with a low around 8. Wind chill values as low as -12. Breezy, with a west wind 24 to 29 mph becoming southwest 18 to 23 mph after midnight. Winds could gust as high as 43 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    Low: 8 °F

    Snow Likely
    and Breezy

  • Wednesday

    Wednesday: Snow. High near 23. Wind chill values as low as -10. Windy, with a west southwest wind 24 to 30 mph, with gusts as high as 44 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    High: 23 °F

    Snow and
    Windy

  • Wednesday Night

    Wednesday Night: Snow. The snow could be heavy at times. Low around 22. Windy, with a southwest wind 29 to 34 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.

    Low: 22 °F

    Heavy Snow
    and Windy

  • Thursday

    Thursday: Snow. The snow could be heavy at times. High near 26. Windy. Chance of precipitation is 100%. New snow accumulation of 9 to 13 inches possible.

    High: 26 °F

    Heavy Snow
    and Windy

  • Thursday Night

    Thursday Night: Snow. The snow could be heavy at times. Low around 23. Windy. Chance of precipitation is 100%. New snow accumulation of 8 to 12 inches possible.

    Low: 23 °F

    Heavy Snow
    and Windy

  • Friday

    Friday: Snow. The snow could be heavy at times. Cloudy, with a high near 26. Breezy.

    High: 26 °F

    Heavy Snow
    and Breezy

  • Friday Night

    Friday Night: Snow. The snow could be heavy at times. Cloudy, with a low around 23. Breezy.

    Low: 23 °F

    Heavy Snow
    and Breezy

Detailed Forecast

Tonight
Snow likely, mainly after 5am. The snow could be heavy at times. Mostly cloudy, with a low around 8. Wind chill values as low as -11. Breezy, with a west wind 17 to 22 mph, with gusts as high as 36 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of 2 to 4 inches possible.
Tuesday
Snow. The snow could be heavy at times. High near 12. Wind chill values as low as -13. Windy, with a west wind 18 to 23 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 44 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 7 inches possible.
Tuesday Night
Snow likely, mainly after midnight. Mostly cloudy, with a low around 8. Wind chill values as low as -12. Breezy, with a west wind 24 to 29 mph becoming southwest 18 to 23 mph after midnight. Winds could gust as high as 43 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Wednesday
Snow. High near 23. Wind chill values as low as -10. Windy, with a west southwest wind 24 to 30 mph, with gusts as high as 44 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Wednesday Night
Snow. The snow could be heavy at times. Low around 22. Windy, with a southwest wind 29 to 34 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.
Thursday
Snow. The snow could be heavy at times. High near 26. Windy. Chance of precipitation is 100%. New snow accumulation of 9 to 13 inches possible.
Thursday Night
Snow. The snow could be heavy at times. Low around 23. Windy. Chance of precipitation is 100%. New snow accumulation of 8 to 12 inches possible.
Friday
Snow. The snow could be heavy at times. Cloudy, with a high near 26. Breezy.
Friday Night
Snow. The snow could be heavy at times. Cloudy, with a low around 23. Breezy.
Saturday
Snow. The snow could be heavy at times. Cloudy, with a high near 24. Windy.
Saturday Night
Snow likely. Mostly cloudy, with a low around 13. Windy.
Sunday
Snow likely. Cloudy, with a high near 23.
Sunday Night
Snow. The snow could be heavy at times. Cloudy, with a low around 21.
Monday
Snow. Cloudy, with a high near 31.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles E St. Ignatius MT
 47.31°N 113.9°W (Elev. 8199 ft)
Last Update:
2:01 pm MDT Mar 9, 2026
Forecast Valid:
10pm MDT Mar 9, 2026-6pm MDT Mar 16, 2026
 
Forecast Discussion
 
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