422  
SXUS45 KMSO 202330  
RECGPI  
 
RECREATION FORECAST FOR FLATHEAD LAKE  
NATIONAL WEATHER SERVICE MISSOULA MT  
505 PM MDT MON APR 20 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.  
   
TONIGHT
 
MOSTLY CLOUDY EARLY IN THE EVENING THEN BECOMING  
PARTLY CLOUDY. LOWS IN THE UPPER 40S. VARIABLE WINDS UP TO  
10 MPH. WAVES LESS THAN 1 FOOT.    
TUESDAY
 
SUNNY. HIGHS IN THE MID 70S. VARIABLE WINDS UP TO  
10 MPH. WAVES LESS THAN 1 FOOT.    
TUESDAY NIGHT
 
MOSTLY CLOUDY. LOWS AROUND 50 . VARIABLE WINDS  
UP TO 10 MPH. WAVES LESS THAN 1 FOOT.    
WEDNESDAY
 
COOLER. PARTLY SUNNY WITH A CHANCE OF RAIN IN THE  
MORNING, THEN CLOUDY WITH SHOWERS AND A CHANCE OF THUNDERSTORMS  
IN THE AFTERNOON. HIGHS AROUND 60 . VARIABLE WINDS UP TO 10 MPH.  
CHANCE OF PRECIPITATION 90 PERCENT. WAVES LESS THAN 1 FOOT.  
 
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