381  
FPUS65 KTFX 190424  
AFPTFX  
 
CENTRAL AND SOUTHWEST MONTANA AREA FORECAST  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
1023 PM MDT FRI SEP 18 2026  
 
MTZ301>314-316>318-191200-  
CENTRAL MONTANA-  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
1023 PM MDT FRI SEP 18 2026  
 
...FLASH FLOOD WATCH IN EFFECT THROUGH SATURDAY EVENING FOR  
LITTLE BELT AND HIGHWOOD MOUNTAINS...  
   
REST OF TONIGHT
 
MOSTLY CLOUDY. CHANCE OF RAIN AFTER MIDNIGHT.  
LOWS 50 TO 55...45 TO 50 IN THE MOUNTAINS.    
SATURDAY
 
MOSTLY CLOUDY. CHANCE OF RAIN THROUGH THE DAY. HIGHS  
60 TO 70...50 TO 60 IN THE MOUNTAINS.    
SATURDAY NIGHT
 
MOSTLY CLOUDY IN THE EVENING THEN BECOMING  
PARTLY CLOUDY. CHANCE OF RAIN THROUGH THE NIGHT. LOWS 45 TO 50...  
40 TO 45 IN THE MOUNTAINS.    
SUNDAY
 
MOSTLY CLEAR. HIGHS 65 TO 75.    
MONDAY
 
MOSTLY CLEAR. LOWS 45 TO 50. HIGHS 70 TO 80.    
TUESDAY
 
MOSTLY CLEAR. LOWS 45 TO 50. HIGHS 70 TO 80.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS 45 TO 55. HIGHS 70 TO 80.  
 

 
 
MTZ315-319>330-191200-  
SOUTHWEST MONTANA-  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
1023 PM MDT FRI SEP 18 2026  
 
...FLOOD WATCH IN EFFECT THROUGH SATURDAY AFTERNOON FOR HELENA  
VALLEY...MEAGHER COUNTY VALLEYS...CANYON FERRY AREA...GALLATIN  
VALLEY...  
...FLASH FLOOD WATCH IN EFFECT THROUGH SATURDAY EVENING FOR BIG  
BELT, BRIDGER AND CASTLE MOUNTAINS...ELKHORN AND BOULDER  
MOUNTAINS...  
...FLASH FLOOD WATCH IN EFFECT THROUGH SATURDAY AFTERNOON FOR  
NORTHWEST BEAVERHEAD COUNTY...  
   
REST OF TONIGHT
 
CHANCE OF THUNDERSTORMS LATE IN THE EVENING.  
RAIN SHOWERS THROUGH THE NIGHT. SLIGHT CHANCE OF THUNDERSTORMS  
AFTER MIDNIGHT. PATCHY DENSE FOG AFTER MIDNIGHT. SOME  
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL LATE IN THE EVENING.  
SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL AFTER MIDNIGHT.  
LOWS 40 TO 50.    
SATURDAY
 
CLOUDY. PATCHY DENSE FOG IN THE MORNING. RAIN SHOWERS  
LIKELY AND CHANCE OF THUNDERSTORMS THROUGH THE DAY. SOME  
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL. HIGHS 55 TO 60...45 TO  
55 IN THE MOUNTAINS.    
SATURDAY NIGHT
 
MOSTLY CLOUDY. CHANCE OF RAIN THROUGH THE  
NIGHT. PATCHY FOG AFTER MIDNIGHT. LOWS 40 TO 50...35 TO 45 IN THE  
MOUNTAINS.    
SUNDAY
 
PARTLY CLOUDY. HIGHS 60 TO 70.    
MONDAY
 
MOSTLY CLEAR. LOWS 40 TO 45. HIGHS 65 TO 75.    
TUESDAY
 
PARTLY CLOUDY. LOWS 40 TO 50. HIGHS 65 TO 75.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS 40 TO 50. HIGHS 65 TO 75.  
 

 
 
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