FPMY50 PGUM 180553
ZFPGUM

Zone Forecast for Guam and the Northern Marianas
National Weather Service Tiyan GU
353 PM ChST Mon May 18 2026

GUZ001-MPZ001>003-182145-
Guam-Rota-Tinian-Saipan-
353 PM ChST Mon May 18 2026

...HIGH RIP CURRENT RISK IN EFFECT THROUGH TUESDAY AFTERNOON ALONG
EAST FACING REEFS...

.TONIGHT...Mostly cloudy with scattered showers. East winds 10 to
20 mph. Lows around 78. Chance of showers 30 percent. 
.TUESDAY...Partly cloudy with isolated showers. East winds 15 to 20 
mph. Highs around 87. Chance of showers 20 percent. 
.TUESDAY NIGHT...Partly cloudy with isolated showers. East winds 15 
to 20 mph. Lows around 78. Chance of showers 20 percent. 
.WEDNESDAY THROUGH THURSDAY...Partly cloudy with isolated showers. 
East winds 15 to 20 mph. Highs around 87. Lows around 78. Chance of 
showers 20 percent. 
.THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy with a 20 
percent chance of showers. Lows in the upper 70s. Highs in the upper
80s.
.FRIDAY AND FRIDAY NIGHT...Mostly cloudy. A 20 percent chance of
showers. Highs in the upper 80s. Lows in the upper 70s.   
.SATURDAY...Partly sunny with a 30 percent chance of showers. Highs
in the mid 80s.
.SATURDAY NIGHT THROUGH MEMORIAL DAY...Mostly cloudy with a 30
percent chance of showers and a slight chance of thunderstorms. Lows
in the upper 70s. Highs in the mid 80s.

$$