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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

FLATTOP MTN. (FTMM8)

Lat: 48.80225°NLon: 113.85713°WElev: 6300.0ft.

NA

26°F

-3°C

Humidity 77%
Wind Speed NA NA MPH
Barometer NA
Dewpoint 19°F (-7°C)
Visibility NA
Last update 15 Feb 02:00 PM MST
Extended Forecast for

16 Miles W 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

  • Washington's Birthday

    Washington's Birthday: A 40 percent chance of snow, mainly between 3pm and 5pm. Mostly cloudy, with a high near 28. Southwest wind around 15 mph, with gusts as high as 25 mph. Total daytime snow accumulation of 1 to 2 inches possible.

    High: 28 °F

    Chance Snow

  • Tonight

    Tonight: A chance of snow before 11pm, then snow likely after 2am. Mostly cloudy, with a low around 12. South wind 9 to 11 mph becoming northeast after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 60%. New snow accumulation of 2 to 4 inches possible.

    Low: 12 °F

    Snow Likely

  • Tuesday

    Tuesday: Snow. The snow could be heavy at times. Temperature falling to around 9 by 5pm. Wind chill values as low as -10. North northeast wind 13 to 16 mph becoming northwest in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

    High: 17 °F⇓

    Heavy Snow

  • Tuesday Night

    Tuesday Night: Snow likely, mainly before 11pm. Mostly cloudy, with a low around -11. Wind chill values as low as -30. West northwest wind around 16 mph becoming northeast in the evening. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: -11 °F

    Snow Likely

  • Wednesday

    Wednesday: A 50 percent chance of snow. Mostly cloudy and cold, with a high near -4. Northeast wind 13 to 15 mph. New snow accumulation of less than one inch possible.

    High: -4 °F

    Chance Snow

  • Wednesday Night

    Wednesday Night: A 50 percent chance of snow. Mostly cloudy, with a low around -15. Northeast wind 9 to 13 mph. New snow accumulation of less than a half inch possible.

    Low: -15 °F

    Chance Snow

  • Thursday

    Thursday: A 40 percent chance of snow, mainly after 11am. Mostly cloudy, with a high near 8. East wind 8 to 13 mph becoming west southwest in the morning. Winds could gust as high as 18 mph. New snow accumulation of less than a half inch possible.

    High: 8 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A chance of snow. Mostly cloudy, with a low around 0. Southwest wind 10 to 13 mph.

    Low: 0 °F

    Chance Snow

  • Friday

    Friday: Snow likely, mainly after 11am. Mostly cloudy, with a high near 13.

    High: 13 °F

    Snow Likely

Detailed Forecast

Washington's Birthday
A 40 percent chance of snow, mainly between 3pm and 5pm. Mostly cloudy, with a high near 28. Southwest wind around 15 mph, with gusts as high as 25 mph. Total daytime snow accumulation of 1 to 2 inches possible.
Tonight
A chance of snow before 11pm, then snow likely after 2am. Mostly cloudy, with a low around 12. South wind 9 to 11 mph becoming northeast after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 60%. New snow accumulation of 2 to 4 inches possible.
Tuesday
Snow. The snow could be heavy at times. Temperature falling to around 9 by 5pm. Wind chill values as low as -10. North northeast wind 13 to 16 mph becoming northwest in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.
Tuesday Night
Snow likely, mainly before 11pm. Mostly cloudy, with a low around -11. Wind chill values as low as -30. West northwest wind around 16 mph becoming northeast in the evening. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Wednesday
A 50 percent chance of snow. Mostly cloudy and cold, with a high near -4. Northeast wind 13 to 15 mph. New snow accumulation of less than one inch possible.
Wednesday Night
A 50 percent chance of snow. Mostly cloudy, with a low around -15. Northeast wind 9 to 13 mph. New snow accumulation of less than a half inch possible.
Thursday
A 40 percent chance of snow, mainly after 11am. Mostly cloudy, with a high near 8. East wind 8 to 13 mph becoming west southwest in the morning. Winds could gust as high as 18 mph. New snow accumulation of less than a half inch possible.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 0. Southwest wind 10 to 13 mph.
Friday
Snow likely, mainly after 11am. Mostly cloudy, with a high near 13.
Friday Night
A chance of snow. Mostly cloudy, with a low around 2.
Saturday
A chance of snow. Partly sunny, with a high near 14.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 4.
Sunday
A chance of snow. Mostly cloudy, with a high near 22.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
16 Miles W St Mary MT
 48.79°N 113.77°W (Elev. 7480 ft)
Last Update:
5:43 am MST Feb 16, 2026
Forecast Valid:
6am MST Feb 16, 2026-6pm MST Feb 22, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation