802  
FPUS65 KTFX 190200  
SFPMT  
 
STATE FORECAST FOR MONTANA  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
800 PM MDT THU JUN 18 2026  
 
MTZ001>007-043-191000-  
WEST OF THE CONTINENTAL DIVIDE-  
NATIONAL WEATHER SERVICE MISSOULA MT  
800 PM MDT THU JUN 18 2026  
 
.../NOTICE/ THE AREA FORECAST PRODUCT (AFP) AND STATE FORECAST  
PRODUCT (SFP) FOR MONTANA WILL BE DISCONTINUED JUNE 29, 2026...  
   
TONIGHT
 
MOSTLY CLEAR. LOWS IN THE 40S.    
JUNETEENTH
 
PARTLY CLOUDY. HIGHS IN THE UPPER 70S TO MID 80S.    
FRIDAY NIGHT
 
MOSTLY CLOUDY. LOWS IN THE MID 40S TO LOWER 50S.    
SATURDAY
 
PARTLY CLOUDY. HIGHS IN THE UPPER 70S TO MID 80S.    
SUNDAY
 
MOSTLY CLEAR. CHANCE OF RAIN SHOWERS. LOWS IN THE MID  
40S TO LOWER 50S. HIGHS IN THE MID 70S TO LOWER 80S.    
MONDAY
 
MOSTLY CLEAR. LOWS IN THE 40S. HIGHS IN THE MID 70S TO  
LOWER 80S.    
TUESDAY
 
MOSTLY CLEAR. LOWS IN THE 40S. HIGHS IN THE MID 80S TO  
LOWER 90S.  
 

 
 
MTZ301>314-316>318-191000-  
CENTRAL MONTANA-  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
800 PM MDT THU JUN 18 2026  
   
REST OF TONIGHT
 
PARTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS  
IN THE EVENING. LOWS 40 TO 45...35 TO 40 IN THE MOUNTAINS.    
JUNETEENTH...SUNNY. HIGHS 65 TO 75
 
55 TO 65 IN THE MOUNTAINS.    
FRIDAY NIGHT
 
MOSTLY CLOUDY. LOWS 45 TO 50.    
SATURDAY
 
PARTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS. HIGHS 75 TO 85.    
SUNDAY
 
PARTLY CLOUDY. COOLER. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 45 TO 50. HIGHS 60 TO 70.    
MONDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS. LOWS  
40 TO 45. HIGHS 60 TO 70.    
TUESDAY
 
MOSTLY CLEAR. LOWS 40 TO 45. HIGHS 70 TO 75.  

 
 
MTZ315-319>330-191000-  
SOUTHWEST MONTANA-  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
800 PM MDT THU JUN 18 2026  
   
REST OF TONIGHT
 
MOSTLY CLEAR. LOWS 35 TO 45.    
JUNETEENTH
 
MOSTLY CLOUDY IN THE MORNING THEN BECOMING PARTLY  
CLOUDY. HIGHS 70 TO 80...65 TO 75 IN THE MOUNTAINS.    
FRIDAY NIGHT
 
MOSTLY CLOUDY. LOWS 45 TO 50.    
SATURDAY
 
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.  
HIGHS 65 TO 75.    
SUNDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 40 TO 50. HIGHS 65 TO 75.    
MONDAY
 
MOSTLY CLEAR. LOWS 40 TO 45. HIGHS 65 TO 75.    
TUESDAY
 
MOSTLY CLEAR. LOWS 40 TO 45. HIGHS 70 TO 80.  

 
 
MTZ016>027-059>062-191000-  
NORTHEAST MONTANA-  
NATIONAL WEATHER SERVICE GLASGOW MT  
800 PM MDT THU JUN 18 2026  
   
TONIGHT
 
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS AND A SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS IN THE 40S.    
JUNETEENTH
 
SUNNY. HIGHS NEAR 70.    
FRIDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE MID 40S TO LOWER 50S.    
SATURDAY
 
PARTLY CLOUDY IN THE MORNING, THEN MOSTLY CLOUDY WITH  
A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON AND  
EVENING. HIGHS IN THE MID 70S TO LOWER 80S.    
SUNDAY
 
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND A SLIGHT  
CHANCE OF THUNDERSTORMS. HIGHS NEAR 70. LOWS IN THE LOWER TO MID  
50S.    
MONDAY
 
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS AND A  
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS IN THE MID TO UPPER 60S.  
LOWS IN THE MID TO UPPER 40S.    
TUESDAY
 
MOSTLY CLEAR. HIGHS NEAR 70. LOWS IN THE LOWER TO MID  
40S.  
 

 
 
MTZ028>042-056>058-063>068-191000-  
SOUTH CENTRAL AND SOUTHEAST MONTANA-  
NATIONAL WEATHER SERVICE BILLINGS MT  
800 PM MDT THU JUN 18 2026  
   
TONIGHT
 
PARTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS. LOWS IN  
THE LOWER 40S TO THE LOWER 50S.    
JUNETEENTH
 
MOSTLY SUNNY. HIGHS IN THE UPPER 60S TO THE UPPER  
70S.    
FRIDAY NIGHT
 
MOSTLY CLOUDY. LOWS IN THE MID 40S TO THE MID  
50S.    
SATURDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. HIGHS  
IN THE MID 70S TO THE MID 80S.    
SATURDAY NIGHT...MOSTLY CLOUDY. CHANCE OF THUNDERSTORMS WEST
 
 
AND SHOWERS LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS EAST. LOWS  
IN THE UPPER 40S TO THE UPPER 50S.    
SUNDAY THROUGH MONDAY
 
MOSTLY CLOUDY. WEST, CHANCE OF SHOWERS  
AND SLIGHT CHANCE OF THUNDERSTORMS, THEN CHANCE OF THUNDERSTORMS.  
EAST, SHOWERS LIKELY. CHANCE OF THUNDERSTORMS. SHOWERS LIKELY.  
LOWS IN THE MID 40S TO THE MID 50S. HIGHS IN THE UPPER 60S TO THE  
UPPER 70S.    
MONDAY NIGHT
 
MOSTLY CLEAR. SLIGHT CHANCE OF THUNDERSTORMS.  
LOWS IN THE LOWER 40S TO THE LOWER 50S.    
TUESDAY
 
SUNNY. HIGHS IN THE 70S.  
 

 
 
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