953  
FPMY50 PGUM 191749  
ZFPGUM  
 
ZONE FORECAST FOR GUAM AND THE NORTHERN MARIANAS  
NATIONAL WEATHER SERVICE TIYAN GU  
349 AM CHST MON OCT 20 2025  
 
GUZ001-MPZ001>003-200830-  
GUAM-ROTA-TINIAN-SAIPAN-  
349 AM CHST MON OCT 20 2025  
   
TODAY
 
CLOUDY WITH NUMEROUS SHOWERS AND ISOLATED THUNDERSTORMS.  
LOCALLY HEAVY SHOWERS POSSIBLE. EAST WINDS 10 TO 20 MPH GUSTING TO 30  
MPH NEAR HEAVIER SHOWERS. HIGHS AROUND 85. CHANCE OF SHOWERS 60  
PERCENT.   
TONIGHT
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS. SOUTHEAST WINDS 10 TO 15 MPH. LOWS AROUND 77. CHANCE  
OF SHOWERS 40 PERCENT.    
TUESDAY
 
PARTLY SUNNY WITH SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS. SOUTHEAST WINDS 10 TO 15 MPH. HIGHS AROUND 86. CHANCE  
OF SHOWERS 50 PERCENT.    
TUESDAY NIGHT
 
MOSTLY CLOUDY WITH ISOLATED SHOWERS AND  
THUNDERSTORMS. SOUTHEAST WINDS 10 TO 15 MPH. LOWS AROUND 78. CHANCE  
OF SHOWERS 20 PERCENT.    
WEDNESDAY
 
PARTLY SUNNY WITH SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS. EAST WINDS 10 TO 15 MPH. HIGHS AROUND 86. CHANCE OF  
SHOWERS 40 PERCENT.    
WEDNESDAY NIGHT THROUGH THURSDAY NIGHT
 
MOSTLY CLOUDY WITH A  
40 PERCENT CHANCE OF SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS.  
LOWS IN THE UPPER 70S. HIGHS IN THE UPPER 80S.    
FRIDAY AND FRIDAY NIGHT
 
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF  
SHOWERS AND THUNDERSTORMS. HIGHS IN THE UPPER 80S. LOWS IN THE UPPER  
70S.    
SATURDAY AND SATURDAY NIGHT
 
PARTLY CLOUDY WITH A 20 PERCENT  
CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE UPPER 80S. LOWS IN  
THE UPPER 70S.    
SUNDAY
 
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS. HIGHS  
IN THE UPPER 80S.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab GU Page Main Text Page