FPMY50 PGUM 261749

ZFPGUM



Zone Forecast for Guam and the Northern Marianas

National Weather Service TIYAN GU

Issued by National Weather Service Honolulu HI

349 AM ChST Fri Jun 27 2025



GUZ001-MPZ001-270930-

Guam-Rota-

349 AM ChST Fri Jun 27 2025



...FLOOD WATCH IN EFFECT THROUGH LATE SUNDAY NIGHT...



.TODAY...Mostly cloudy with scattered showers and isolated 

thunderstorms. Southeast winds 10 to 15 mph. Highs around 86. Chance

of showers 40 percent. 

.TONIGHT...Mostly cloudy with numerous showers and isolated

thunderstorms. Locally heavy downpours possible. South winds 10 to 

15 mph. Lows around 76. Chance of showers 60 percent. 

.SATURDAY AND SATURDAY NIGHT...Cloudy with numerous showers and 

isolated thunderstorms. Locally heavy downpours possible. Southwest 

winds around 10 mph. Highs around 85. Lows around 76. Chance of 

showers 60 percent.

.SUNDAY...Cloudy with numerous showers and isolated thunderstorms.

Locally heavy downpours possible. South winds 10 to 15 mph. Highs 

around 85. Chance of showers 60 percent. 

.SUNDAY NIGHT...Mostly cloudy with showers likely and a slight 

chance of thunderstorms. Locally heavy downpours possible. Lows in 

the mid to upper 70s. Chance of showers 60 percent. 

.MONDAY...Mostly cloudy with a 40 percent chance of showers and a 

slight chance of thunderstorms. Highs in the upper 80s.

.MONDAY NIGHT THROUGH THURSDAY...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.



$$



MPZ002-003-270930-

Tinian-Saipan-

349 AM ChST Fri Jun 27 2025



...FLOOD WATCH IN EFFECT THROUGH LATE SUNDAY NIGHT...



.TODAY...Mostly cloudy with scattered showers and isolated

thunderstorms. Southeast winds 10 to 15 mph. Highs around 86. Chance

of showers 40 percent. 

.TONIGHT...Mostly cloudy with scattered showers and isolated

thunderstorms. Locally heavy downpours possible. Southeast winds 10 

to 15 mph. Lows around 76. Chance of showers 50 percent. 

.SATURDAY...Mostly cloudy with scattered showers and isolated

thunderstorms. Locally heavy downpours possible. South winds 5 to 10

mph. Highs around 86. Chance of showers 50 percent. 

.SATURDAY NIGHT AND SUNDAY...Mostly cloudy with scattered showers

and isolated thunderstorms. Locally heavy downpours possible. South 

winds 10 to 15 mph. Lows around 77. Highs around 86. Chance of 

showers 50 percent. 

.SUNDAY NIGHT...Mostly cloudy with a chance of showers and a slight 

chance of thunderstorms. Locally heavy downpours possible. Lows in 

the upper 70s. Chance of showers 50 percent. 

.MONDAY...Mostly cloudy with a 40 percent chance of showers and a 

slight chance of thunderstorms. Highs in the upper 80s. 

.MONDAY NIGHT THROUGH THURSDAY...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.



$$

