FPMY50 PGUM 231759
ZFPGUM

Zone Forecast for Guam and the Northern Marianas
National Weather Service Tiyan GU
359 AM ChST Mon Aug 24 2026

GUZ001-MPZ001>003-240900-
Guam-Rota-Tinian-Saipan-
359 AM ChST Mon Aug 24 2026

...HIGH SURF ADVISORY IN EFFECT UNTIL 4 PM CHST THIS AFTERNOON ALONG
WEST FACING REEFS... 
...HIGH RIP CURRENT RISK IN EFFECT THROUGH THIS AFTERNOON ALONG WEST 
FACING REEFS...

.TODAY...Mostly cloudy. Scattered showers in the morning, then  
numerous showers in the afternoon. Isolated thunderstorms. Southwest
winds 10 to 15 mph with gusts to 25 mph near heavier showers. Highs 
around 86. Chance of showers 60 percent. 
.TONIGHT...Mostly cloudy. Numerous showers in the evening, then 
scattered showers after midnight. Isolated thunderstorms. Locally 
heavy showers possible. Southwest winds 10 to 15 mph with gusts to 25
mph near heavier showers. Lows around 77. Chance of showers 60 
percent. 
.TUESDAY THROUGH WEDNESDAY...Mostly cloudy with scattered locally
heavy showers and isolated thunderstorms. Southwest winds 5 to 10 
mph. Highs around 87. Lows around 78. Chance of showers 40 percent. 
.WEDNESDAY NIGHT AND THURSDAY...Mostly cloudy. A 40 percent chance 
of showers and a slight chance of thunderstorms. Lows in the upper 
70s. Highs in the mid 80s.
.THURSDAY NIGHT AND FRIDAY...Cloudy with showers likely and a slight
chance of thunderstorms. Lows in the upper 70s. Highs in the mid 
80s. Chance of showers 60 percent.
.FRIDAY NIGHT THROUGH SUNDAY...Mostly cloudy with a chance of 
showers and a slight chance of thunderstorms. Lows in the upper 70s.
Highs in the mid 80s. Chance of showers 50 percent. 

$$