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

Hazardous Weather Conditions

Current conditions at

FLATTOP MTN. (FTMM8)

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

NA

14°F

-10°C

Humidity 89%
Wind Speed NA NA MPH
Barometer NA
Dewpoint 11°F (-12°C)
Visibility NA
Last update 01 Apr 02:00 AM MDT
Extended Forecast for

16 Miles W St Mary MT

Winter Weather Advisory until April 3, 06:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until April 3, 06:00am

    NOW until 6:00am Fri

    Winter Weather Advisory

  • Today

    High: 25 °F

    Heavy Snow

  • Tonight

    Tonight: Snow, mainly before 9pm. Low around 19. North wind 8 to 13 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    Low: 19 °F

    Snow then
    Chance Snow

  • Friday

    Friday: Partly sunny, with a high near 28. Southwest wind 11 to 17 mph, with gusts as high as 25 mph.

    High: 28 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 20. Southwest wind 16 to 18 mph, with gusts as high as 25 mph.

    Low: 20 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 32. West southwest wind around 16 mph, with gusts as high as 23 mph.

    High: 32 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 20. West southwest wind 9 to 15 mph, with gusts as high as 20 mph.

    Low: 20 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of snow before noon. Mostly cloudy, with a high near 33. South wind 8 to 10 mph.

    High: 33 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 22. West southwest wind 8 to 10 mph becoming southeast in the evening.

    Low: 22 °F

    Mostly Cloudy

Detailed Forecast

Today
Snow. The snow could be heavy at times. High near 25. South southwest wind 9 to 13 mph becoming north in the morning. Chance of precipitation is 90%. Total daytime snow accumulation of 5 to 9 inches possible.
Tonight
Snow, mainly before 9pm. Low around 19. North wind 8 to 13 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Friday
Partly sunny, with a high near 28. Southwest wind 11 to 17 mph, with gusts as high as 25 mph.
Friday Night
Mostly cloudy, with a low around 20. Southwest wind 16 to 18 mph, with gusts as high as 25 mph.
Saturday
Mostly sunny, with a high near 32. West southwest wind around 16 mph, with gusts as high as 23 mph.
Saturday Night
Partly cloudy, with a low around 20. West southwest wind 9 to 15 mph, with gusts as high as 20 mph.
Sunday
A 20 percent chance of snow before noon. Mostly cloudy, with a high near 33. South wind 8 to 10 mph.
Sunday Night
Mostly cloudy, with a low around 22. West southwest wind 8 to 10 mph becoming southeast in the evening.
Monday
Mostly cloudy, with a high near 38.
Monday Night
Mostly cloudy, with a low around 28.
Tuesday
A chance of snow. Partly sunny, with a high near 36. Breezy.
Tuesday Night
Snow likely. Mostly cloudy, with a low around 17.
Wednesday
Snow likely. Mostly cloudy, with a high near 23.
Basemap Options
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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:
7:52 am MDT Apr 2, 2026
Forecast Valid:
8am MDT Apr 2, 2026-6pm MDT Apr 8, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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