475  
FPUS65 KTFX 182343  
AFPTFX  
 
CENTRAL AND SOUTHWEST MONTANA AREA FORECAST  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
542 PM MDT SAT JUL 18 2026  
 
MTZ301>314-316>318-191200-  
CENTRAL MONTANA-  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
542 PM MDT SAT JUL 18 2026  
 
...SEVERE THUNDERSTORM WATCH 497 IN EFFECT UNTIL 10 PM MDT THIS  
EVENING FOR EAST GLACIER PARK REGION...NORTHERN HIGH  
PLAINS...EASTERN GLACIER, WESTERN TOOLE, AND CENTRAL  
PONDERA...EASTERN TOOLE AND LIBERTY...HILL COUNTY...NORTHERN  
BLAINE COUNTY...SOUTHERN ROCKY MOUNTAIN FRONT...SOUTHERN HIGH  
PLAINS...EASTERN PONDERA AND EASTERN TETON...WESTERN AND CENTRAL  
CHOUTEAU COUNTY...BEARS PAW MOUNTAINS AND SOUTHERN  
BLAINE...CASCADE COUNTY BELOW 5000FT...JUDITH BASIN COUNTY AND  
JUDITH GAP...FERGUS COUNTY BELOW 4500FT...GATES OF THE  
MOUNTAINS...LITTLE BELT AND HIGHWOOD MOUNTAINS...SNOWY AND JUDITH  
MOUNTAINS...  
   
TONIGHT
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE EVENING. LOWS 60 TO 65...50 TO 60 IN THE  
MOUNTAINS.    
SUNDAY...SUNNY. HIGHS 85 TO 95
 
75 TO 85 IN THE MOUNTAINS. WEST  
WINDS AROUND 20 MPH IN THE AFTERNOON.    
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS 50 TO 60.    
MONDAY
 
MOSTLY CLEAR. HIGHS 75 TO 85.    
TUESDAY
 
PARTLY CLOUDY. LOWS 55 TO 60. HIGHS 80 TO 90.    
WEDNESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 55 TO 65. HIGHS 85 TO 95.    
THURSDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 60 TO 65. HIGHS 85 TO 95.  
 

 
 
MTZ315-319>330-191200-  
SOUTHWEST MONTANA-  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
542 PM MDT SAT JUL 18 2026  
 
...SEVERE THUNDERSTORM WATCH 497 IN EFFECT UNTIL 10 PM MDT THIS  
EVENING FOR UPPER BLACKFOOT AND MACDONALD PASS...HELENA  
VALLEY...BIG BELT, BRIDGER AND CASTLE MOUNTAINS...MEAGHER COUNTY  
VALLEYS...ELKHORN AND BOULDER MOUNTAINS...CANYON FERRY  
AREA...MISSOURI HEADWATERS...MADISON RIVER VALLEY...GALLATIN  
VALLEY...BEAVERHEAD AND WESTERN MADISON BELOW 6000FT...RUBY  
MOUNTAINS AND SOUTHERN BEAVERHEAD MOUNTAINS...GALLATIN AND  
MADISON COUNTY MOUNTAINS AND CENTENNIAL MOUNTAINS...  
   
TONIGHT
 
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS IN THE EVENING. LOWS 50 TO 60.    
SUNDAY
 
SUNNY. SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.  
HIGHS 85 TO 95...75 TO 85 IN THE MOUNTAINS.    
SUNDAY NIGHT
 
PARTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS.  
LOWS 50 TO 60.    
MONDAY
 
MOSTLY CLEAR. HIGHS 80 TO 90.    
TUESDAY
 
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS 55 TO 60. HIGHS 75 TO 85.    
WEDNESDAY
 
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS 55 TO 60. HIGHS 75 TO 85.    
THURSDAY
 
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS 55 TO 60. HIGHS 75 TO 85.  
 

 
 
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