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

Extremely Critical Fire Weather in the Central Plains; Active Pattern in the West

Gusty to high winds and low relative humidity will bring critical to extremely critical fire weather conditions to the central and southern Plains today into Wednesday. Use caution with any potential ignition sources. Two Pacific storms will impact the western U.S. into Wednesday with gusty winds, low elevation rain and heavy mountain snow. Read More >

Hazardous Weather Conditions

Current conditions at

ST. IGNATIUS (SIGM)

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

NA

35°F

2°C

Humidity 89%
Wind Speed NW 2 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 17 Feb 07:00 AM MST
Extended Forecast for

9 Miles E St. Ignatius MT

Winter Weather Advisory until February 17, 05:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until February 17, 05:00pm

    NOW until 5:00pm Tue

    Winter Weather Advisory

  • Today

    High: 22 °F

    Heavy Snow
    and Blowing
    Snow

  • Tonight

    Tonight: A 30 percent chance of snow, mainly after 4am. Patchy blowing snow after 8pm. Mostly cloudy, with a low around 5. Wind chill values as low as -14. Breezy, with a south southwest wind 17 to 24 mph, with gusts as high as 37 mph. New snow accumulation of less than a half inch possible.

    Low: 5 °F

    Chance Snow
    and Patchy
    Blowing Snow

  • Wednesday

    Wednesday: Snow. Areas of blowing snow before 11am. High near 10. Wind chill values as low as -15. Breezy, with a south southwest wind 16 to 23 mph becoming west in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 10 °F

    Snow and
    Areas Blowing
    Snow

  • Wednesday Night

    Wednesday Night: Snow likely, mainly before 11pm. Mostly cloudy, with a low around -1. Wind chill values as low as -21. West northwest wind 15 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: -1 °F

    Snow Likely

  • Thursday

    Thursday: Snow likely, mainly after 11am. Partly sunny, with a high near 12. West northwest wind 15 to 17 mph becoming north in the morning. Winds could gust as high as 26 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 12 °F

    Snow Likely

  • Thursday Night

    Thursday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 5. New snow accumulation of less than a half inch possible.

    Low: 5 °F

    Chance Snow

  • Friday

    Friday: Snow. Patchy blowing snow after 11am. High near 13. Breezy. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    High: 13 °F

    Snow and
    Patchy
    Blowing Snow

  • Friday Night

    Friday Night: A chance of snow. Mostly cloudy, with a low around 5.

    Low: 5 °F

    Chance Snow

Detailed Forecast

Today
Snow, mainly before 11am. The snow could be heavy at times. Widespread blowing snow, mainly before noon. High near 22. Wind chill values as low as -10. Windy, with a west wind 23 to 31 mph, with gusts as high as 55 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 10 to 14 inches possible.
Tonight
A 30 percent chance of snow, mainly after 4am. Patchy blowing snow after 8pm. Mostly cloudy, with a low around 5. Wind chill values as low as -14. Breezy, with a south southwest wind 17 to 24 mph, with gusts as high as 37 mph. New snow accumulation of less than a half inch possible.
Wednesday
Snow. Areas of blowing snow before 11am. High near 10. Wind chill values as low as -15. Breezy, with a south southwest wind 16 to 23 mph becoming west in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
Snow likely, mainly before 11pm. Mostly cloudy, with a low around -1. Wind chill values as low as -21. West northwest wind 15 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Thursday
Snow likely, mainly after 11am. Partly sunny, with a high near 12. West northwest wind 15 to 17 mph becoming north in the morning. Winds could gust as high as 26 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 5. New snow accumulation of less than a half inch possible.
Friday
Snow. Patchy blowing snow after 11am. High near 13. Breezy. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Friday Night
A chance of snow. Mostly cloudy, with a low around 5.
Saturday
A chance of snow. Partly sunny, with a high near 19.
Saturday Night
A slight chance of snow. Mostly cloudy, with a low around 8. Breezy.
Sunday
A chance of snow. Partly sunny, with a high near 23. Breezy.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 17. Breezy.
Monday
Snow. Mostly cloudy, with a high near 26.
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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:
1:01 am MST Feb 17, 2026
Forecast Valid:
7am MST Feb 17, 2026-6pm MST Feb 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation