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

34°F

1°C

Humidity 53%
Wind Speed NA NA MPH
Barometer NA
Dewpoint 18°F (-8°C)
Visibility NA
Last update 11 Apr 01:00 AM MDT
Extended Forecast for

16 Miles W St Mary MT

  • Overnight

    Overnight: Mostly cloudy, with a low around 31. South wind around 9 mph.

    Low: 31 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of rain and snow, mainly after noon. Mostly cloudy, with a high near 40. Southwest wind 9 to 18 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 40 °F

    Slight Chance
    Rain/Snow
    then Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: A chance of rain and snow showers before 10pm, then snow showers likely. Mostly cloudy, with a low around 29. West southwest wind 10 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Chance
    Rain/Snow
    then Snow
    Showers
    Likely

  • Sunday

    Sunday: Snow showers likely, mainly before noon. Mostly cloudy, with a high near 35. West southwest wind around 10 mph becoming east northeast in the afternoon. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 35 °F

    Snow Showers
    Likely

  • Sunday Night

    Sunday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 27. East northeast wind around 9 mph becoming west after midnight. New snow accumulation of less than one inch possible.

    Low: 27 °F

    Chance Snow

  • Monday

    Monday: Snow likely, mainly after noon. Mostly cloudy, with a high near 35. West southwest wind 9 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    High: 35 °F

    Chance Snow
    then Snow
    Likely

  • Monday Night

    Monday Night: A 40 percent chance of snow before midnight. Mostly cloudy, with a low around 26. Southwest wind 18 to 21 mph, with gusts as high as 24 mph. New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Chance Snow
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: A slight chance of snow. Mostly cloudy, with a high near 28. Breezy, with a southwest wind 22 to 26 mph, with gusts as high as 37 mph.

    High: 28 °F

    Slight Chance
    Snow and
    Breezy

  • Tuesday Night

    Tuesday Night: A chance of snow, mainly after midnight. Mostly cloudy, with a low around 23. Breezy.

    Low: 23 °F

    Chance Snow
    and Breezy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 31. South wind around 9 mph.
Saturday
A chance of rain and snow, mainly after noon. Mostly cloudy, with a high near 40. Southwest wind 9 to 18 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Saturday Night
A chance of rain and snow showers before 10pm, then snow showers likely. Mostly cloudy, with a low around 29. West southwest wind 10 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Sunday
Snow showers likely, mainly before noon. Mostly cloudy, with a high near 35. West southwest wind around 10 mph becoming east northeast in the afternoon. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Sunday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 27. East northeast wind around 9 mph becoming west after midnight. New snow accumulation of less than one inch possible.
Monday
Snow likely, mainly after noon. Mostly cloudy, with a high near 35. West southwest wind 9 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Monday Night
A 40 percent chance of snow before midnight. Mostly cloudy, with a low around 26. Southwest wind 18 to 21 mph, with gusts as high as 24 mph. New snow accumulation of less than a half inch possible.
Tuesday
A slight chance of snow. Mostly cloudy, with a high near 28. Breezy, with a southwest wind 22 to 26 mph, with gusts as high as 37 mph.
Tuesday Night
A chance of snow, mainly after midnight. Mostly cloudy, with a low around 23. Breezy.
Wednesday
Snow. Mostly cloudy, with a high near 25. Breezy.
Wednesday Night
Snow likely. Mostly cloudy, with a low around 13. Breezy.
Thursday
Snow likely. Mostly cloudy, with a high near 22.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 14.
Friday
A chance of snow. Partly sunny, with a high near 26.
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:
12:32 am MDT Apr 11, 2026
Forecast Valid:
1am MDT Apr 11, 2026-6pm MDT Apr 17, 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