FPMY50 PGUM 191813

ZFPGUM



Zone Forecast for Guam and the Northern Marianas

National Weather Service Tiyan GU

413 AM ChST Fri Mar 20 2026



GUZ001-MPZ001>003-200815-

Guam-Rota-Tinian-Saipan-

413 AM ChST Fri Mar 20 2026



...HIGH SURF ADVISORY IN EFFECT UNTIL 4 PM CHST THIS AFTERNOON

ALONG NORTH FACING REEFS... 

...HIGH RIP CURRENT RISK IN EFFECT UNTIL 4 PM CHST THIS AFTERNOON 

ALONG NORTH FACING REEFS...

...MINOR COASTAL INUNDATION ALONG NORTHERN SHORELINES REMAINS 

POSSIBLE THROUGH THIS AFTERNOON AROUND HIGH TIDE...



.TODAY...Mostly sunny with isolated showers. Northeast winds 15 to 

20 mph with gusts to 25 mph. Highs around 85. Chance of showers 10 

percent.

.TONIGHT...Partly cloudy with isolated showers. Northeast winds 15 

to 20 mph with gusts to 25 mph. Lows around 74. Chance of showers 20

percent.

.SATURDAY THROUGH SUNDAY...Partly cloudy with isolated showers. 

Northeast winds 15 to 20 mph. Highs around 85. Lows around 75. Chance

of showers 20 percent. 

.SUNDAY NIGHT...Mostly cloudy with a 20 percent chance of showers. 

Lows in the mid 70s. 

.MONDAY...Mostly cloudy with a 50 percent chance of showers. Highs 

in the mid 80s. 

.MONDAY NIGHT...Mostly cloudy with a 20 percent chance of showers. 

Lows in the mid 70s. 

.TUESDAY THROUGH WEDNESDAY NIGHT...Mostly cloudy with a 40 percent

chance of showers. Highs in the mid 80s. Lows in the upper 70s.   

.THURSDAY...Partly sunny with a 20 percent chance of showers. Highs

in the upper 80s. 



$$