559  
FPUS65 KTFX 180938  
AFPTFX  
 
CENTRAL AND SOUTHWEST MONTANA AREA FORECAST  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
338 AM MDT TUE AUG 18 2026  
 
MTZ301>314-316>318-190000-  
CENTRAL MONTANA-  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
338 AM MDT TUE AUG 18 2026  
 
   
TODAY  
PARTLY CLOUDY. PATCHY SMOKE THROUGH THE DAY. SLIGHT  
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. HIGHS 75 TO  
85...65 TO 75 IN THE MOUNTAINS.    
TONIGHT  
PARTLY CLOUDY. PATCHY SMOKE. SLIGHT CHANCE OF SHOWERS.  
LOWS 50 TO 60...45 TO 55 IN THE MOUNTAINS.    
WEDNESDAY  
PARTLY CLOUDY IN THE MORNING THEN CLEARING. PATCHY  
SMOKE. HIGHS 80 TO 85...70 TO 80 IN THE MOUNTAINS.    
THURSDAY  
MOSTLY CLEAR. LOWS 50 TO 60. HIGHS 75 TO 85.    
FRIDAY  
MOSTLY CLEAR. LOWS 50 TO 55. HIGHS 80 TO 90.    
SATURDAY  
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 55 TO 60. HIGHS 80 TO 90.  
 
 
 
MTZ315-319>330-190000-  
SOUTHWEST MONTANA-  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
338 AM MDT TUE AUG 18 2026  
 
   
TODAY  
INCREASING CLOUDS. CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 75 TO 80...60 TO  
70 IN THE MOUNTAINS.    
TONIGHT  
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. SLIGHT  
CHANCE OF RAIN SHOWERS. LOWS 45 TO 55.    
WEDNESDAY...SUNNY THEN BECOMING PARTLY CLOUDY. HIGHS 75 TO 85  
 
65 TO 75 IN THE MOUNTAINS.    
THURSDAY  
MOSTLY CLEAR. LOWS 45 TO 55. HIGHS 75 TO 85.    
FRIDAY  
PARTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS. LOWS 50 TO 55. HIGHS 75 TO 85.    
SATURDAY  
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS. LOWS 55 TO 60. HIGHS 75 TO 85.  
 
 
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