519  
FPUS65 KTFX 171838  
AFPTFX  
 
CENTRAL AND SOUTHWEST MONTANA AREA FORECAST  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
ISSUED BY NATIONAL WEATHER SERVICE MISSOULA MT  
1237 PM MDT FRI JUL 17 2026  
 
MTZ301>314-316>318-180000-  
CENTRAL MONTANA-  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
1237 PM MDT FRI JUL 17 2026  
 
   
REST OF TODAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. HIGHS 85 TO 95...75 TO 85 IN THE MOUNTAINS.    
TONIGHT
 
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS 60 TO 65...55 TO 60 IN THE MOUNTAINS.    
SATURDAY
 
SUNNY THEN BECOMING PARTLY CLOUDY. SLIGHT CHANCE OF  
SHOWERS THROUGH THE DAY. SLIGHT CHANCE OF THUNDERSTORMS IN THE  
EVENING. HIGHS 90 TO 95...75 TO 85 IN THE MOUNTAINS.    
SUNDAY
 
MOSTLY CLEAR. LOWS 55 TO 65. HIGHS 85 TO 95.    
MONDAY
 
MOSTLY CLEAR. LOWS 55 TO 60. HIGHS 75 TO 85.    
TUESDAY
 
PARTLY CLOUDY. LOWS 55 TO 60. HIGHS 80 TO 90.  
 

 
 
MTZ315-319>330-180000-  
SOUTHWEST MONTANA-  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
1237 PM MDT FRI JUL 17 2026  
 
...FLASH FLOOD WATCH IN EFFECT UNTIL MIDNIGHT MDT TONIGHT FOR BIG  
BELT, BRIDGER AND CASTLE MOUNTAINS...  
   
REST OF TODAY
 
MOSTLY CLOUDY. CHANCE OF SHOWERS AND  
THUNDERSTORMS. SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL.  
HIGHS 85 TO 95...75 TO 85 IN THE MOUNTAINS.    
TONIGHT
 
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. SHOWERS  
LIKELY AND CHANCE OF THUNDERSTORMS. SOME THUNDERSTORMS MAY  
PRODUCE HEAVY RAINFALL. LOWS 50 TO 60.    
SATURDAY
 
SUNNY THEN BECOMING PARTLY CLOUDY. SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON AND EVENING. HIGHS  
85 TO 90...70 TO 80 IN THE MOUNTAINS.    
SUNDAY
 
MOSTLY CLEAR. LOWS 50 TO 60. HIGHS 80 TO 90.    
MONDAY
 
MOSTLY CLEAR. LOWS 50 TO 60. HIGHS 75 TO 85.    
TUESDAY
 
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS. LOWS 55 TO 60. HIGHS 75 TO 85.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab MT Page Main Text Page