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Fire Weather in the Central and Southern Plains; Pacific Storms Impacting the West

Gusty to high winds and low relative humidity will bring elevated to critical fire weather to the central and southern Plains into Wednesday. 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

USCRN SITE NEAR ST. MARY 1SSW (MRYM8)

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

NA

33°F

1°C

Humidity 57%
Wind Speed NA 9 MPH
Barometer NA
Dewpoint 19°F (-7°C)
Visibility NA
Wind Chill25°F (-4°C)
Last update 15 Feb 08:10 PM MST
Extended Forecast for

5 Miles WSW St Mary MT

Winter Weather Advisory February 17, 02:00am until February 17, 05:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • Tonight

    Tonight: A 40 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around 21. West southwest wind around 18 mph, with gusts as high as 33 mph. Total nighttime snow accumulation of less than one inch possible.

    Low: 21 °F

    Chance Snow

  • Washington's Birthday

    Washington's Birthday: A slight chance of snow before 10am, then a chance of snow after 2pm. Partly sunny, with a high near 31. Southwest wind 16 to 18 mph, with gusts as high as 33 mph. Chance of precipitation is 40%. New snow accumulation of less than one inch possible.

    High: 31 °F

    Chance Snow

  • Monday Night

    Monday Night: Snow likely. Mostly cloudy, with a low around 15. South wind 10 to 14 mph becoming west northwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    Low: 15 °F

    Snow Likely

  • Tuesday

    Tuesday: Snow. Patchy blowing snow after 8am. High near 17. Wind chill values as low as -10. Blustery, with a northwest wind 15 to 22 mph, with gusts as high as 38 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    High: 17 °F

    Snow and
    Patchy
    Blowing Snow

  • Tuesday Night

    Tuesday Night: A 50 percent chance of snow. Mostly cloudy, with a low around -9. North wind 15 to 20 mph, with gusts as high as 32 mph. New snow accumulation of less than one inch possible.

    Low: -9 °F

    Chance Snow

  • Wednesday

    Wednesday: A 50 percent chance of snow. Mostly cloudy and cold, with a high near -3. North northeast wind around 15 mph, with gusts as high as 26 mph. New snow accumulation of less than one inch possible.

    High: -3 °F

    Chance Snow

  • Wednesday Night

    Wednesday Night: A 40 percent chance of snow. Mostly cloudy, with a low around -11. Northeast wind 10 to 15 mph, with gusts as high as 25 mph. New snow accumulation of less than a half inch possible.

    Low: -11 °F

    Chance Snow

  • Thursday

    Thursday: A chance of snow. Mostly cloudy, with a high near 10. West southwest wind 9 to 14 mph, with gusts as high as 26 mph.

    High: 10 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A chance of snow. Mostly cloudy, with a low around 3.

    Low: 3 °F

    Chance Snow

Detailed Forecast

Tonight
A 40 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around 21. West southwest wind around 18 mph, with gusts as high as 33 mph. Total nighttime snow accumulation of less than one inch possible.
Washington's Birthday
A slight chance of snow before 10am, then a chance of snow after 2pm. Partly sunny, with a high near 31. Southwest wind 16 to 18 mph, with gusts as high as 33 mph. Chance of precipitation is 40%. New snow accumulation of less than one inch possible.
Monday Night
Snow likely. Mostly cloudy, with a low around 15. South wind 10 to 14 mph becoming west northwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Tuesday
Snow. Patchy blowing snow after 8am. High near 17. Wind chill values as low as -10. Blustery, with a northwest wind 15 to 22 mph, with gusts as high as 38 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Tuesday Night
A 50 percent chance of snow. Mostly cloudy, with a low around -9. North wind 15 to 20 mph, with gusts as high as 32 mph. New snow accumulation of less than one inch possible.
Wednesday
A 50 percent chance of snow. Mostly cloudy and cold, with a high near -3. North northeast wind around 15 mph, with gusts as high as 26 mph. New snow accumulation of less than one inch possible.
Wednesday Night
A 40 percent chance of snow. Mostly cloudy, with a low around -11. Northeast wind 10 to 15 mph, with gusts as high as 25 mph. New snow accumulation of less than a half inch possible.
Thursday
A chance of snow. Mostly cloudy, with a high near 10. West southwest wind 9 to 14 mph, with gusts as high as 26 mph.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 3.
Friday
A chance of snow. Partly sunny, with a high near 15.
Friday Night
A chance of snow. Mostly cloudy, with a low around 6.
Saturday
A chance of snow. Partly sunny, with a high near 19.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 8.
Sunday
A chance of snow. Partly sunny, with a high near 24.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW St Mary MT
 48.73°N 113.53°W (Elev. 6778 ft)
Last Update:
5:12 pm MST Feb 15, 2026
Forecast Valid:
8pm MST Feb 15, 2026-6pm MST Feb 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation