FPMY50 PGUM 200507
ZFPGUM

Zone Forecast for Guam and the Northern Marianas
National Weather Service Tiyan GU
307 PM ChST Wed May 20 2026

GUZ001-MPZ001>003-202200-
Guam-Rota-Tinian-Saipan-
307 PM ChST Wed May 20 2026

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

.TONIGHT...Partly cloudy with isolated showers. East winds 15 to 20 
mph. Lows around 78. Chance of showers 20 percent. 
.THURSDAY...Partly sunny. Isolated showers in the morning, then 
scattered showers in the afternoon. East winds 15 to 20 mph. Highs 
around 87. Chance of showers 30 percent. 
.THURSDAY NIGHT...Mostly cloudy with scattered showers. East winds
10 to 15 mph. Lows around 78. Chance of showers 30 percent. 
.FRIDAY AND FRIDAY NIGHT...Partly cloudy with isolated showers. East
winds 15 to 20 mph. Highs around 87. Lows around 78. Chance of 
showers 20 percent. 
.SATURDAY...Partly cloudy with scattered showers and isolated 
thunderstorms. East winds 15 to 20 mph. Highs around 86. Chance of 
showers 30 percent.
.SATURDAY NIGHT THROUGH WEDNESDAY...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.

$$