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

FLATTOP MTN. (FTMM8)

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

NA

29°F

-2°C

Humidity 54%
Wind Speed NA NA MPH
Barometer NA
Dewpoint 14°F (-10°C)
Visibility NA
Last update 31 Mar 03:00 PM MDT
Extended Forecast for

16 Miles W St Mary MT

  • Tonight

    Tonight: Mostly cloudy, with a low around 16. Southwest wind 7 to 9 mph.

    Low: 16 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of snow before noon, then a chance of snow after 2pm. Mostly cloudy, with a high near 31. South southwest wind 7 to 10 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 31 °F

    Chance Snow

  • Wednesday Night

    Wednesday Night: Snow. Low around 22. South wind around 9 mph becoming east northeast after midnight. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    Low: 22 °F

    Snow

  • Thursday

    Thursday: Snow. The snow could be heavy at times. High near 24. North northwest wind 9 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

    High: 24 °F

    Heavy Snow

  • Thursday Night

    Thursday Night: Snow, mainly before midnight. Low around 18. North northwest wind 8 to 13 mph becoming west after midnight. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    Low: 18 °F

    Snow then
    Chance Snow

  • Friday

    Friday: A 30 percent chance of snow. Partly sunny, with a high near 28. West southwest wind 10 to 15 mph, with gusts as high as 21 mph. New snow accumulation of less than a half inch possible.

    High: 28 °F

    Chance Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 21. West southwest wind 14 to 16 mph, with gusts as high as 20 mph.

    Low: 21 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 33. West southwest wind 14 to 16 mph, with gusts as high as 23 mph.

    High: 33 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 16. Southwest wind 7 to 9 mph.
Wednesday
A chance of snow before noon, then a chance of snow after 2pm. Mostly cloudy, with a high near 31. South southwest wind 7 to 10 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Wednesday Night
Snow. Low around 22. South wind around 9 mph becoming east northeast after midnight. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Thursday
Snow. The snow could be heavy at times. High near 24. North northwest wind 9 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.
Thursday Night
Snow, mainly before midnight. Low around 18. North northwest wind 8 to 13 mph becoming west after midnight. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Friday
A 30 percent chance of snow. Partly sunny, with a high near 28. West southwest wind 10 to 15 mph, with gusts as high as 21 mph. New snow accumulation of less than a half inch possible.
Friday Night
Mostly cloudy, with a low around 21. West southwest wind 14 to 16 mph, with gusts as high as 20 mph.
Saturday
Partly sunny, with a high near 33. West southwest wind 14 to 16 mph, with gusts as high as 23 mph.
Saturday Night
Mostly cloudy, with a low around 25.
Sunday
A slight chance of snow after noon. Partly sunny, with a high near 37.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 24.
Monday
A chance of snow. Mostly cloudy, with a high near 37.
Monday Night
A slight chance of snow. Mostly cloudy, with a low around 26.
Tuesday
A chance of snow. Partly sunny, with a high near 39.
Basemap Options
Click map to change the forecast location
Loading map...
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:
4:22 pm MDT Mar 31, 2026
Forecast Valid:
6pm MDT Mar 31, 2026-6pm MDT Apr 7, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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