590  
FPMY50 PGUM 080600  
ZFPGUM  
 
ZONE FORECAST FOR GUAM AND THE NORTHERN MARIANAS  
NATIONAL WEATHER SERVICE TIYAN GU  
400 PM CHST THU OCT 8 2026  
 
GUZ001-MPZ001-082215-  
GUAM-ROTA-  
400 PM CHST THU OCT 8 2026  
   
TONIGHT
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS. WEST WINDS 5 TO 10 MPH. LOWS AROUND 78. CHANCE OF  
SHOWERS 30 PERCENT.   
FRIDAY
 
PARTLY SUNNY WITH SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS. WEST 5 TO 10 MPH. HIGHS AROUND 86. CHANCE OF SHOWERS  
40 PERCENT.   
FRIDAY NIGHT
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS. SOUTHWEST WINDS 5 TO 10 MPH. LOWS AROUND 78. CHANCE  
OF SHOWERS 40 PERCENT.   
SATURDAY AND SATURDAY NIGHT
 
MOSTLY CLOUDY. SCATTERED SHOWERS AND  
ISOLATED THUNDERSTORMS. WEST WINDS 10 TO 15 MPH. HIGHS AROUND 87.  
LOWS AROUND 79. CHANCE OF SHOWERS 30 PERCENT.   
SUNDAY
 
PARTLY CLOUDY WITH ISOLATED SHOWERS. WEST WINDS 10 TO  
15 MPH. HIGHS AROUND 86. CHANCE OF SHOWERS 20 PERCENT.   
SUNDAY NIGHT THROUGH THURSDAY
 
PARTLY CLOUDY WITH A 20 PERCENT  
CHANCE OF SHOWERS. LOWS IN THE UPPER 70S. HIGHS IN THE UPPER 80S.  
 

 
 
MPZ002-003-082215-  
TINIAN-SAIPAN-  
400 PM CHST THU OCT 8 2026  
   
TONIGHT
 
PARTLY CLOUDY WITH ISOLATED SHOWERS IN THE EVENING, THEN  
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS  
AROUND MIDNIGHT. LIGHT AND VARIABLE WINDS. LOWS AROUND 78. CHANCE OF  
SHOWERS 30 PERCENT.   
FRIDAY
 
PARTLY SUNNY WITH SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS. LIGHT AND VARIABLE WINDS. HIGHS AROUND 87. CHANCE OF  
SHOWERS 30 PERCENT.    
FRIDAY NIGHT AND SATURDAY
 
PARTLY CLOUDY WITH ISOLATED SHOWERS.  
LIGHT AND VARIABLE WINDS. LOWS AROUND 79. HIGHS AROUND 88. CHANCE OF  
SHOWERS 20 PERCENT.   
SATURDAY NIGHT AND SUNDAY
 
PARTLY CLOUDY WITH ISOLATED SHOWERS.  
WEST WINDS 10 TO 15 MPH. LOWS AROUND 79. HIGHS AROUND 88. CHANCE OF  
SHOWERS 20 PERCENT.    
SUNDAY NIGHT THROUGH THURSDAY
 
PARTLY CLOUDY WITH A 20 PERCENT  
CHANCE OF SHOWERS. LOWS IN THE UPPER 70S. HIGHS IN THE UPPER 80S.  
 

 
 
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