Point Forecast: St Mary MT
 48.74N 113.44W (Elev. 4554 ft)
Last Update: 4:41 am MDT Oct 15, 2026
Tabular Forecast
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Weather ElementsFire WeatherAviation Weather
Temperature (°F)
Dewpoint (°F)
Wind Chill (°F)

Surface Wind  
Sky Cover (%)
Precipitation Potential (%)
Relative Humidity (%)

Rain
Thunder
Snow
Freezing Rain
Sleet
Fog
Mixing Height  
Trans. Wind  
Vent Rate (x1000 mph-ft)
Grassland Fire Danger Index
Ceiling Height
Visibility

48-Hour Period Starting:       Back 2 Days  

Date10/1510/16
Hour (MDT)080910111213141516171819202122230001020304050607
Temperature (°F)242634384145474949484542393737363737373738383637
Dewpoint (°F)222327262628293030313230272525242525252424232122
Wind Chill (°F)242634384144464847474439353231303130303031312829
Surface Wind (mph)11122333533567888991010111313
Wind DirESESESSSESSESSESSSSSSSSWSSWSSWSSWSSWSSWSSWSSWSSWSSWSWSW
Gust18202121222224252929
Sky Cover (%)771122239122021454238534428161222224141
Precipitation Potential (%)000000000000000000000000
Relative Humidity (%)938774615552494848516062626262626261615856545355
Rain------------------------------------------------
Thunder------------------------------------------------
Snow------------------------------------------------
Freezing Rain------------------------------------------------
Sleet------------------------------------------------

Date10/17
Hour (MDT)080910111213141516171819202122230001020304050607
Temperature (°F)384147515455565756555250505050494948484746454545
Dewpoint (°F)232427282929292928282826262525242423242322222222
Wind Chill (°F)30334145454444434342424140393737
Surface Wind (mph)131515151515151515151515151717171515151313132222
Wind DirSWSWSWSWWSWWSWWSWWSWWSWWSWWSWWSWWSWWSWWSWWSWSWSWSWSWSWSWSWSW
Gust293030302929292929293232323838383434343030304545
Sky Cover (%)412424243535355959598787875757575151514040403434
Precipitation Potential (%)000000000000000011111100
Relative Humidity (%)545045403836353434353939393837373737383939404040
Rain------------------------------------------------
Thunder------------------------------------------------
Snow------------------------------------------------
Freezing Rain------------------------------------------------
Sleet------------------------------------------------

Additional Forecasts and Information
International System of UnitsForecast Discussion
7-Day ForecastHourly Weather Graph