206  
FPUS65 KTFX 220500  
SFPMT  
 
STATE FORECAST FOR MONTANA  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
1100 PM MDT THU MAY 21 2026  
 
MTZ001>007-043-221000-  
WEST OF THE CONTINENTAL DIVIDE-  
NATIONAL WEATHER SERVICE MISSOULA MT  
1100 PM MDT THU MAY 21 2026  
   
TONIGHT  
PARTLY CLOUDY. LOWS IN THE 30S.    
FRIDAY  
PARTLY CLOUDY. HIGHS IN THE MID 60S TO LOWER 70S.    
FRIDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE MID 30S TO LOWER 40S.    
SATURDAY  
PARTLY CLOUDY. HIGHS IN THE 70S TO LOWER 80S.    
SUNDAY  
MOSTLY CLEAR. LOWS IN THE 40S. HIGHS IN THE MID 70S TO  
LOWER 80S.    
MEMORIAL DAY  
PARTLY CLOUDY. A CHANCE OF RAIN. LOWS IN THE 40S.  
HIGHS IN THE MID 70S TO LOWER 80S.    
TUESDAY  
MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY. LOWS IN THE  
UPPER 30S TO MID 40S. HIGHS IN THE MID 60S TO LOWER 70S.  
 
 
 
MTZ301>314-316>318-221000-  
CENTRAL MONTANA-  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
1100 PM MDT THU MAY 21 2026  
   
REST OF TONIGHT  
PARTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS  
LATE IN THE EVENING. LOWS 35 TO 40...25 TO 35 IN THE MOUNTAINS.    
FRIDAY...PARTLY CLOUDY. HIGHS 65 TO 70  
50 TO 60 IN THE  
MOUNTAINS.    
FRIDAY NIGHT  
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY  
CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS. LOWS 40 TO 45...35 TO  
40 IN THE MOUNTAINS.    
SATURDAY  
PARTLY CLOUDY. HIGHS 70 TO 80.    
SUNDAY  
MOSTLY CLEAR. LOWS 45 TO 50. HIGHS 75 TO 85.    
MEMORIAL DAY  
PARTLY CLOUDY. CHANCE OF RAIN SHOWERS. LOWS 45 TO  
50. HIGHS 80 TO 90.    
TUESDAY  
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS. LOWS 50 TO 55. HIGHS 70 TO 80.  
 
 
MTZ315-319>330-221000-  
SOUTHWEST MONTANA-  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
1100 PM MDT THU MAY 21 2026  
   
REST OF TONIGHT...PARTLY CLOUDY. LOWS 30 TO 35  
25 TO 30 IN THE  
MOUNTAINS.    
FRIDAY...PARTLY CLOUDY. HIGHS 60 TO 65  
50 TO 60 IN THE  
MOUNTAINS.    
FRIDAY NIGHT  
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS  
30 TO 40.    
SATURDAY  
PARTLY CLOUDY. HIGHS 60 TO 70.    
SUNDAY  
PARTLY CLOUDY. LOWS 40 TO 45. HIGHS 65 TO 75.    
MEMORIAL DAY  
PARTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS.  
LOWS 40 TO 50. HIGHS 70 TO 80.    
TUESDAY  
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS. LOWS 40 TO 50. HIGHS 60 TO 70.  
 
 
MTZ016>027-059>062-221000-  
NORTHEAST MONTANA-  
NATIONAL WEATHER SERVICE GLASGOW MT  
1100 PM MDT THU MAY 21 2026  
   
TONIGHT  
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS. LOWS NEAR  
40.    
FRIDAY  
PARTLY CLOUDY. HIGHS IN THE MID TO UPPER 60S.    
FRIDAY NIGHT  
PARTLY CLOUDY. LOWS NEAR 40.    
SATURDAY  
PARTLY CLOUDY. HIGHS IN THE 70S.    
SUNDAY  
MOSTLY CLEAR. HIGHS IN THE 80S. LOWS IN THE MID 40S TO  
LOWER 50S.    
MEMORIAL DAY  
MOSTLY CLEAR. HIGHS NEAR 90. LOWS IN THE LOWER TO  
MID 50S.    
TUESDAY  
PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND A SLIGHT  
CHANCE OF THUNDERSTORMS. HIGHS NEAR 90. LOWS IN THE MID 50S TO  
LOWER 60S.  
 
 
 
MTZ028>042-056>058-063>068-221000-  
SOUTH CENTRAL AND SOUTHEAST MONTANA-  
NATIONAL WEATHER SERVICE BILLINGS MT  
1100 PM MDT THU MAY 21 2026  
   
REST OF TONIGHT  
PARTLY CLOUDY. SCATTERED RAIN SHOWERS. LOWS IN  
THE LOWER 30S TO THE LOWER 40S.    
FRIDAY  
SUNNY. HIGHS IN THE 60S.    
FRIDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE UPPER 30S TO MID 40S.    
SATURDAY  
SUNNY. HIGHS IN THE MID 70S.    
SATURDAY NIGHT  
MOSTLY CLEAR. LOWS IN THE LOWER 40S TO THE  
LOWER 50S.    
SUNDAY  
SUNNY. HIGHS IN THE 80S.    
SUNDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE MID 40S TO THE MID  
50S.    
MEMORIAL DAY  
SUNNY. HIGHS IN THE MID 80S TO LOWER 90S.    
MONDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE UPPER 40S TO THE UPPER  
50S.    
TUESDAY  
MOSTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS. HIGHS IN THE UPPER 70S TO LOWER 90S.  
 
 
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