645  
SXUS45 KMSO 221230  
RECGPI  
 
RECREATION FORECAST FOR FLATHEAD LAKE  
NATIONAL WEATHER SERVICE MISSOULA MT  
605 AM MDT SAT AUG 22 2026  
 
NOTE: THE EXPERIMENTAL WAVE HEIGHT FORECASTS ARE REPRESENTATIVE OF  
THE MID LAKE WATERS AND DOWNWIND SHORES. WAVE HEIGHTS MAY BE  
SIGNIFICANTLY LESS ON UPWIND SHORES.  
   
TODAY
 
MOSTLY CLOUDY IN THE MORNING, THEN MOSTLY SUNNY WITH A  
SLIGHT CHANCE OF RAIN EARLY IN THE AFTERNOON. MOSTLY SUNNY WITH A  
SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE AFTERNOON. SOME  
THUNDERSTORMS MAY PRODUCE STRONG GUSTY WINDS LATE IN THE  
AFTERNOON. HIGHS AROUND 80 . VARIABLE WINDS UP TO 10 MPH. CHANCE  
OF PRECIPITATION 20 PERCENT. WAVES LESS THAN 1 FOOT.    
TONIGHT
 
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF THUNDERSTORMS IN  
THE EVENING, THEN PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND A  
SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. SOME THUNDERSTORMS  
MAY PRODUCE STRONG GUSTY WINDS IN THE EVENING. LOWS AROUND 60 .  
VARIABLE WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION 50 PERCENT.  
WAVES LESS THAN 1 FOOT.    
SUNDAY
 
BREEZY, SUNNY. A SLIGHT CHANCE OF RAIN IN THE MORNING,  
THEN A SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN  
THE LOWER 70S. VARIABLE WINDS UP TO 10 MPH BECOMING SOUTHWEST  
15 TO 20 MPH IN THE AFTERNOON. CHANCE OF PRECIPITATION  
20 PERCENT. WAVES AROUND 1 FOOT...LOCALLY UP TO 2 FEET.    
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE MID 50S. WEST WINDS  
AROUND 15 MPH IN THE EVENING BECOMING LIGHT. WAVES AROUND  
1 FOOT...LOCALLY UP TO 2 FEET.    
MONDAY
 
SUNNY. HIGHS IN THE LOWER 70S. VARIABLE WINDS UP TO  
10 MPH. WAVES LESS THAN 1 FOOT.  
 
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