Zone Forecast Product
Issued by NWS Tiyan, Guam

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511
FPMY50 PGUM 040500
ZFPGUM

Zone Forecast for Guam and the Northern Marianas
National Weather Service Tiyan GU
300 PM ChST Sat Oct 4 2025

GUZ001-042115-
Guam-
300 PM ChST Sat Oct 4 2025

.TONIGHT...Partly cloudy with isolated showers and thunderstorms.
Light and variable winds. Lows around 76. Chance of showers
20 percent.
.SUNDAY AND SUNDAY NIGHT...Partly cloudy with isolated showers and
thunderstorms. Light and variable winds. Highs around 87. Lows around
78. Chance of showers 20 percent.
.MONDAY THROUGH TUESDAY...Mostly cloudy with scattered showers and
isolated thunderstorms. Southeast winds 10 to 15 mph. Highs around
86. Lows around 76. Chance of showers 50 percent.
.TUESDAY NIGHT...Mostly cloudy with a 40 percent chance of showers
and a slight chance of thunderstorms. Lows in the mid 70s.
.WEDNESDAY THROUGH SATURDAY...Partly cloudy with a 20 percent chance
of showers. Highs in the upper 80s. Lows in the upper 70s.

$$

MPZ001>003-042115-
Rota-Tinian-Saipan-
300 PM ChST Sat Oct 4 2025

.TONIGHT...Mostly cloudy with isolated showers and thunderstorms.
Light and variable winds. Lows around 79. Chance of showers 20
percent.
.SUNDAY...Partly cloudy with isolated showers and thunderstorms.
Light and variable winds. Highs around 87. Chance of showers
20 percent.
.SUNDAY NIGHT...Mostly cloudy with scattered showers and isolated
thunderstorms. Light and variable winds. Lows around 79. Chance of
showers 30 percent.
.MONDAY...Partly sunny with scattered showers and isolated
thunderstorms. Southeast winds 10 to 15 mph. Highs around 87. Chance
of showers 30 percent.
.MONDAY NIGHT...Mostly cloudy with scattered showers. East winds
10 to 15 mph. Lows around 77. Chance of showers 50 percent.
.TUESDAY...Partly sunny with scattered showers and isolated
thunderstorms. Southeast winds 15 to 20 mph. Highs around 87. Chance
of showers 40 percent.
.TUESDAY NIGHT...Breezy. Mostly cloudy with a 40 percent chance of
showers and a slight chance of thunderstorms. Lows in the upper 70s.
.WEDNESDAY THROUGH THURSDAY NIGHT...Partly cloudy with a 20 percent
chance of showers and thunderstorms. Highs in the upper 80s. Lows in
the upper 70s.
.FRIDAY THROUGH SATURDAY...Partly cloudy with a 20 percent chance of
showers. Highs in the upper 80s. Lows in the upper 70s.

$$