015  
FPUS65 KTFX 172200  
SFPMT  
 
STATE FORECAST FOR MONTANA  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
400 PM MDT SUN MAY 17 2026  
 
MTZ001>007-043-181000-  
WEST OF THE CONTINENTAL DIVIDE-  
NATIONAL WEATHER SERVICE MISSOULA MT  
400 PM MDT SUN MAY 17 2026  
 
...WINTER WEATHER ADVISORY IN EFFECT UNTIL MIDNIGHT MDT TONIGHT  
FOR WEST GLACIER REGION...BITTERROOT/SAPPHIRE  
MOUNTAINS...BUTTE/BLACKFOOT REGION...POTOMAC/SEELEY LAKE  
REGION...  
...FROST ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 9 AM MDT  
MONDAY FOR FLATHEAD/MISSION VALLEYS...MISSOULA/BITTERROOT  
VALLEYS...  
   
TONIGHT
 
PARTLY CLOUDY WITH AREAS OF RAIN AND SNOW. WIDESPREAD  
FROST. LOWS IN THE MID 20S TO LOWER 30S.    
MONDAY
 
PARTLY CLOUDY. WIDESPREAD FROST. HIGHS IN THE MID 50S  
TO LOWER 60S.    
MONDAY NIGHT
 
PARTLY CLOUDY. WIDESPREAD FROST. LOWS IN THE  
UPPER 20S TO MID 30S.    
TUESDAY
 
PARTLY CLOUDY. AREAS OF FROST IN THE MORNING. HIGHS IN  
THE 60S.    
WEDNESDAY
 
PARTLY CLOUDY. CHANCE OF RAIN SHOWERS. LOWS IN THE  
30S. HIGHS IN THE 60S.    
THURSDAY
 
PARTLY CLOUDY. A CHANCE OF RAIN. LOWS IN THE 30S TO  
LOWER 40S. HIGHS IN THE MID 60S TO LOWER 70S.    
FRIDAY
 
PARTLY CLOUDY. LOWS IN THE MID 30S TO LOWER 40S. HIGHS  
IN THE UPPER 60S TO MID 70S.  
 

 
 
MTZ301>314-316>318-181000-  
CENTRAL MONTANA-  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
400 PM MDT SUN MAY 17 2026  
 
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT  
TONIGHT FOR EAST GLACIER PARK REGION...SOUTHERN ROCKY MOUNTAIN  
FRONT...LITTLE BELT AND HIGHWOOD MOUNTAINS...  
   
TONIGHT
 
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN IN THE EVENING.  
SLIGHT CHANCE OF SNOW THROUGH THE NIGHT. LOWS 25 TO 30...20 TO  
25 IN THE MOUNTAINS.    
MONDAY
 
MOSTLY CLOUDY IN THE MORNING THEN BECOMING PARTLY  
CLOUDY. HIGHS 45 TO 55...35 TO 45 IN THE MOUNTAINS.    
MONDAY NIGHT
 
PARTLY CLOUDY. LOWS 25 TO 30.    
TUESDAY
 
PARTLY CLOUDY. HIGHS 55 TO 65.    
WEDNESDAY
 
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS. LOWS 35 TO 40. HIGHS 55 TO 65.    
THURSDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF RAIN. LOWS 35 TO 40.  
HIGHS 60 TO 70.    
FRIDAY
 
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS. LOWS 40 TO 45. HIGHS 60 TO 70.  

 
 
MTZ315-319>330-181000-  
SOUTHWEST MONTANA-  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
400 PM MDT SUN MAY 17 2026  
 
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT  
TONIGHT FOR UPPER BLACKFOOT AND MACDONALD PASS...BIG BELT,  
BRIDGER AND CASTLE MOUNTAINS...ELKHORN AND BOULDER MOUNTAINS...  
   
TONIGHT
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW IN THE EVENING.  
LOWS 25 TO 30...20 TO 25 IN THE MOUNTAINS. NORTH WINDS 20 TO  
25 MPH WITH GUSTS TO 40 MPH IN THE EVENING.    
MONDAY
 
MOSTLY CLOUDY IN THE MORNING THEN BECOMING PARTLY  
CLOUDY. HIGHS 45 TO 55...35 TO 45 IN THE MOUNTAINS. GUSTS UP TO  
35 MPH IN THE MORNING.    
MONDAY NIGHT...MOSTLY CLEAR. LOWS 25 TO 30
 
20 TO 25 IN THE  
MOUNTAINS.    
TUESDAY
 
PARTLY CLOUDY. HIGHS 50 TO 60.    
WEDNESDAY
 
PARTLY CLOUDY. CHANCE OF RAIN. LOWS 30 TO 35. HIGHS  
50 TO 60.    
THURSDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF RAIN. LOWS 30 TO 35.  
HIGHS 55 TO 65.    
FRIDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 35 TO 40. HIGHS 55 TO 65.  

 
 
MTZ016>027-059>062-181000-  
NORTHEAST MONTANA-  
NATIONAL WEATHER SERVICE GLASGOW MT  
400 PM MDT SUN MAY 17 2026  
   
TONIGHT
 
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS. LOWS IN  
THE LOWER TO MID 30S.    
MONDAY
 
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN SHOWERS.  
HIGHS IN THE MID TO UPPER 40S.    
MONDAY NIGHT
 
MOSTLY CLOUDY. LOWS IN THE MID 20S TO LOWER 30S.    
TUESDAY
 
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON AND EVENING. HIGHS IN THE LOWER TO  
MID 60S.    
WEDNESDAY
 
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. HIGHS IN THE MID 60S TO LOWER 70S. LOWS IN THE MID  
30S TO LOWER 40S.    
THURSDAY
 
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN SHOWERS.  
HIGHS IN THE MID TO UPPER 60S. LOWS NEAR 40.    
FRIDAY
 
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. HIGHS NEAR 70. LOWS IN THE LOWER TO MID 40S.  
 

 
 
MTZ028>042-056>058-063>068-181000-  
SOUTH CENTRAL AND SOUTHEAST MONTANA-  
NATIONAL WEATHER SERVICE BILLINGS MT  
400 PM MDT SUN MAY 17 2026  
 
...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON MDT MONDAY FOR  
PORTIONS OF SOUTH CENTRAL MONTANA...  
   
TONIGHT
 
MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS AND SLIGHT  
CHANCE OF SHOWERS WEST...AND SLIGHT CHANCE OF SHOWERS EAST. LOWS  
IN THE UPPER 20S TO THE UPPER 30S.    
MONDAY
 
CLOUDY. PATCHY BLOWING SNOW. CHANCE OF SNOW SHOWERS AND  
SLIGHT CHANCE OF RAIN SHOWERS. HIGHS IN THE LOWER 40S TO THE  
LOWER 50S.    
MONDAY NIGHT
 
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS.  
LOWS IN THE MID 20S TO LOWER 30S.    
TUESDAY
 
SUNNY. HIGHS IN THE UPPER 50S TO THE UPPER 60S.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE MID 30S TO LOWER 40S.   
WEDNESDAY
 
MOSTLY SUNNY. CHANCE OF RAIN SHOWERS AND ISOLATED  
THUNDERSTORMS. HIGHS IN THE LOWER 60S TO THE LOWER 70S.    
WEDNESDAY NIGHT
 
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND  
SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE MID 30S TO THE MID  
40S.    
THURSDAY
 
MOSTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS. HIGHS IN  
THE LOWER 60S TO THE LOWER 70S.    
THURSDAY NIGHT
 
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS.  
LOWS IN THE UPPER 30S TO THE UPPER 40S.    
FRIDAY
 
PARTLY SUNNY. SLIGHT CHANCE OF THUNDERSTORMS. HIGHS IN  
THE MID 60S TO THE MID 70S.  
 

 
 
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