616
FPMY50 PGUM 291740
ZFPGUM

Zone Forecast for Guam and the Northern Marianas
National Weather Service Tiyan GU
340 AM ChST Thu Jul 30 2026

GUZ001-MPZ001>003-300815-
Guam-Rota-Tinian-Saipan-
340 AM ChST Thu Jul 30 2026

.TODAY...Partly cloudy with isolated showers. Southeast winds 10 to
15 mph. Highs around 88. Chance of showers 20 percent.
.TONIGHT...Mostly cloudy with isolated showers. Light and variable
winds. Lows around 78. Chance of showers 20 percent.
.FRIDAY...Partly sunny with scattered showers. Light and variable
winds becoming southwest 10 to 15 mph in the afternoon. Highs around
88. Chance of showers 30 percent.
.FRIDAY NIGHT AND SATURDAY...Mostly cloudy. Scattered showers and
isolated thunderstorms. West winds 10 to 15 mph. Lows around 78.
Highs near 88. Chance of showers 40 percent.
.SATURDAY NIGHT THROUGH SUNDAY NIGHT...Breezy. Mostly cloudy.
A 40 percent chance of showers and a slight chance of thunderstorms.
Lows in the upper 70s. Highs in the upper 80s.
.MONDAY THROUGH WEDNESDAY...Windy. Mostly cloudy with a 40 percent
chance of showers and a slight chance of thunderstorms. Highs in the
upper 80s. Lows in the upper 70s.

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