259  
FPMY50 PGUM 160659 CCA  
ZFPGUM  
 
ZONE FORECAST FOR GUAM AND THE NORTHERN MARIANAS...CORRECTED  
NATIONAL WEATHER SERVICE TIYAN GU  
459 PM CHST TUE SEP 16 2025  
 
GUZ001-162000-  
GUAM-  
459 PM CHST TUE SEP 16 2025  
 
CORRECTED TO INCLUDE GUSTS THIS EVENING.  
   
TONIGHT  
CLOUDY WITH RAIN AND ISOLATED THUNDERSTORMS IN THE  
EVENING, THEN MOSTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS AFTER MIDNIGHT. SOUTH WINDS 10 TO 15 MPH. GUSTS TO 30  
MPH THIS EVENING. LOWS AROUND 76. CHANCE OF SHOWERS 80 PERCENT.   
WEDNESDAY  
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS. SOUTHEAST WINDS 10 TO 15 MPH. HIGHS AROUND 87. CHANCE  
OF SHOWERS 50 PERCENT.    
WEDNESDAY NIGHT  
PARTLY CLOUDY WITH ISOLATED SHOWERS AND  
THUNDERSTORMS. LIGHT AND VARIABLE WINDS BECOMING SOUTHEAST AROUND  
10 MPH AFTER MIDNIGHT. LOWS AROUND 78. CHANCE OF SHOWERS 20 PERCENT.   
THURSDAY THROUGH FRIDAY  
PARTLY CLOUDY WITH ISOLATED SHOWERS. EAST  
WINDS 10 TO 15 MPH. HIGHS AROUND 87. LOWS AROUND 79. CHANCE OF  
SHOWERS 20 PERCENT.    
FRIDAY NIGHT AND SATURDAY  
PARTLY CLOUDY WITH A 20 PERCENT CHANCE  
OF SHOWERS. LOWS IN THE UPPER 70S. HIGHS IN THE UPPER 80S.    
SATURDAY NIGHT THROUGH SUNDAY NIGHT  
MOSTLY CLOUDY WITH A  
30 PERCENT CHANCE OF SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS.  
LOWS IN THE UPPER 70S. HIGHS IN THE UPPER 80S.    
MONDAY  
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND  
THUNDERSTORMS. HIGHS IN THE UPPER 80S.    
MONDAY NIGHT AND TUESDAY  
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE  
OF SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER  
70S. HIGHS IN THE MID 80S.  
 
 
 
MPZ001-162000-  
ROTA-  
459 PM CHST TUE SEP 16 2025  
 
CORRECTED TO INCLUDE GUSTS THIS EVENING.  
   
TONIGHT  
MOSTLY CLOUDY. NUMEROUS SHOWERS AND ISOLATED  
THUNDERSTORMS IN THE EVENING, THEN SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS AFTER MIDNIGHT. SOUTHEAST WINDS 10 TO 20 MPH. GUSTS TO  
30 MPH THIS EVENING. LOWS AROUND 77. CHANCE OF SHOWERS 60 PERCENT.    
WEDNESDAY  
PARTLY SUNNY WITH SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS. SOUTHEAST WINDS 10 TO 20 MPH. HIGHS AROUND 86. CHANCE  
OF SHOWERS 40 PERCENT.    
WEDNESDAY NIGHT  
PARTLY CLOUDY WITH ISOLATED SHOWERS AND  
THUNDERSTORMS. SOUTHEAST WINDS 10 TO 15 MPH. LOWS AROUND 79. CHANCE  
OF SHOWERS 20 PERCENT.    
THURSDAY THROUGH FRIDAY  
PARTLY CLOUDY WITH ISOLATED SHOWERS. EAST  
WINDS 10 TO 15 MPH. HIGHS AROUND 87. LOWS AROUND 79. CHANCE OF  
SHOWERS 20 PERCENT.    
FRIDAY NIGHT AND SATURDAY  
PARTLY CLOUDY WITH A 20 PERCENT CHANCE  
OF SHOWERS. LOWS IN THE UPPER 70S. HIGHS IN THE UPPER 80S.    
SATURDAY NIGHT THROUGH SUNDAY NIGHT  
MOSTLY CLOUDY WITH A  
30 PERCENT CHANCE OF SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS.  
LOWS IN THE UPPER 70S. HIGHS IN THE UPPER 80S.    
MONDAY  
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND  
THUNDERSTORMS. HIGHS IN THE UPPER 80S.    
MONDAY NIGHT AND TUESDAY  
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.  
 
 
 
MPZ002-003-162000-  
TINIAN-SAIPAN-  
459 PM CHST TUE SEP 16 2025  
   
TONIGHT  
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS. SOUTHEAST WINDS 10 TO 15 MPH. LOWS AROUND 78. CHANCE  
OF SHOWERS 50 PERCENT.    
WEDNESDAY  
PARTLY SUNNY WITH SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS. SOUTHEAST WINDS 10 TO 15 MPH. HIGHS AROUND 86. CHANCE  
OF SHOWERS 30 PERCENT.    
WEDNESDAY NIGHT  
PARTLY CLOUDY WITH ISOLATED SHOWERS AND  
THUNDERSTORMS. SOUTHEAST WINDS 10 TO 15 MPH. LOWS AROUND 79. CHANCE  
OF SHOWERS 20 PERCENT.    
THURSDAY THROUGH FRIDAY  
PARTLY CLOUDY WITH ISOLATED SHOWERS. EAST  
WINDS 10 TO 15 MPH. HIGHS AROUND 87. LOWS AROUND 79. CHANCE OF  
SHOWERS 20 PERCENT.    
FRIDAY NIGHT AND SATURDAY  
PARTLY CLOUDY WITH A 20 PERCENT CHANCE  
OF SHOWERS. LOWS IN THE UPPER 70S. HIGHS IN THE UPPER 80S.    
SATURDAY NIGHT  
MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS  
AND A SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER 70S.    
SUNDAY  
PARTLY SUNNY WITH A 30 PERCENT CHANCE OF SHOWERS. HIGHS IN  
THE UPPER 80S.    
SUNDAY NIGHT  
MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS  
AND A SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER 70S.    
MONDAY  
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND  
THUNDERSTORMS. HIGHS IN THE UPPER 80S.    
MONDAY NIGHT AND TUESDAY  
MOSTLY CLOUDY WITH A 30 PERCENT CHANCE  
OF SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER  
70S. HIGHS IN THE UPPER 80S.  
 
 
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