991
FPMY50 PGUM 020543
ZFPGUM

Zone Forecast for Guam and the Northern Marianas
National Weather Service Tiyan GU
343 PM ChST Sat Aug 2 2025

GUZ001-MPZ001>003-022315-
Guam-Rota-Tinian-Saipan-
343 PM ChST Sat Aug 2 2025

.TONIGHT...Mostly cloudy with scattered showers. Isolated
thunderstorms Guam and Rota. East to southeast winds 5 to 15 mph.
Lows around 77. Chance of showers 50 percent Guam and Rota; 40
percent Tinian and Saipan.
.SUNDAY AND SUNDAY NIGHT...Mostly cloudy with scattered showers.
Isolated thundestorms Guam. Southeast winds 10 to 15 mph. Highs
around 87. Lows around 78. Chance of showers 40 percent Guam and
Rota; 30 percent Tinian and Saipan.
.MONDAY...Partly sunny with isolated showers. Southeast to east
winds 10 to 15 mph. Highs around 88. Chance of showers 20 percent.
.MONDAY NIGHT THROUGH TUESDAY NIGHT...Mostly cloudy with scattered
showers and isolated thunderstorms. East to southeast winds 10 to 15
mph, decreasing to 5 to 10 mph Tuesday night. Lows around 77. Highs
around 86. Chance of showers 40 percent.
.WEDNESDAY THROUGH SATURDAY...Mostly cloudy with a 30 percent chance
of showers and a slight chance of thunderstorms. Highs in the upper
80s. Lows in the upper 70s.

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