971  
FPMY50 PGUM 191803  
ZFPGUM  
 
ZONE FORECAST FOR GUAM AND THE NORTHERN MARIANAS  
NATIONAL WEATHER SERVICE TIYAN GU  
403 AM CHST SAT JUN 20 2026  
 
GUZ001-MPZ001>003-200830-  
GUAM-ROTA-TINIAN-SAIPAN-  
403 AM CHST SAT JUN 20 2026  
   
TODAY
 
PARTLY SUNNY WITH ISOLATED SHOWERS. SOUTHEAST WINDS 10 TO  
15 MPH. HIGHS AROUND 88. CHANCE OF SHOWERS 20 PERCENT.   
TONIGHT
 
PARTLY CLOUDY WITH ISOLATED SHOWERS. SOUTHEAST WINDS  
AROUND 10 MPH IN THE EVENING BECOMING LIGHT. LOWS AROUND 78. CHANCE  
OF SHOWERS 20 PERCENT.   
SUNDAY
 
PARTLY CLOUDY WITH ISOLATED SHOWERS IN THE MORNING, THEN  
PARTLY SUNNY WITH ISOLATED SHOWERS AND A SLIGHT CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON. SOUTHEAST WINDS AROUND 10 MPH IN THE  
MORNING BECOMING LIGHT. HIGHS NEAR 88. CHANCE OF SHOWERS 20 PERCENT.   
SUNDAY NIGHT
 
PARTLY CLOUDY WITH ISOLATED SHOWERS. LIGHT AND  
VARIABLE WINDS. LOWS AROUND 77. CHANCE OF SHOWERS 20 PERCENT.   
MONDAY
 
PARTLY CLOUDY. ISOLATED SHOWERS IN THE MORNING, BECOMING  
SCATTERED AND A SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.  
LIGHT AND VARIABLE WINDS. HIGHS AROUND 88. CHANCE OF SHOWERS 30  
PERCENT.   
MONDAY NIGHT
 
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS.  
LOWS IN THE UPPER 70S.   
TUESDAY
 
PARTLY SUNNY. A 30 PERCENT CHANCE OF SHOWERS. A SLIGHT  
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 80S.   
TUESDAY NIGHT THROUGH THURSDAY
 
MOSTLY CLOUDY WITH A 20 PERCENT  
CHANCE OF SHOWERS. LOWS IN THE UPPER 70S. HIGHS IN THE UPPER 80S.   
THURSDAY NIGHT
 
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS  
AND A SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER 70S.   
FRIDAY
 
PARTLY SUNNY WITH A 20 PERCENT CHANCE OF SHOWERS. HIGHS IN  
THE MID 80S.  
 

 
 
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