Zone Forecast Product
Issued by NWS Tiyan, Guam

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FPMY50 PGUM 281752
ZFPGUM

Zone Forecast for Guam and the Northern Marianas
National Weather Service Tiyan GU
352 AM ChST Sat Aug 29 2026

GUZ001-290900-
Guam-
352 AM ChST Sat Aug 29 2026

.TODAY...Mostly cloudy with numerous showers and isolated
thunderstorms. Locally heavy showers possible. Northwest winds 10 to
15 mph. Gusts to 25 mph possible near heavier showers. Highs around
86. Chance of showers 60 percent.
.TONIGHT...Mostly cloudy with scattered showers and isolated
thunderstorms. Northwest winds 10 to 15 mph. Lows around 77. Chance
of showers 40 percent.
.SUNDAY THROUGH MONDAY...Mostly cloudy with scattered showers and
isolated thunderstorms. Locally heavy showers possible. West winds
10 to 15 mph. Gusts to 25 mph possible near heavier showers. Highs
around 86. Lows around 75. Chance of showers 50 percent.
.MONDAY NIGHT AND TUESDAY...Mostly cloudy. A 50 percent chance of
showers and a slight chance of thunderstorms. Locally heavy showers
possible. Lows in the mid 70s. Highs in the upper 80s.
.TUESDAY NIGHT...Cloudy with showers likely and a slight chance of
thunderstorms. Locally heavy showers possible. Lows in the mid 70s.
Chance of showers 70 percent.
.WEDNESDAY THROUGH FRIDAY...Breezy. Mostly cloudy with a 40 percent
chance of showers and a slight chance of thunderstorms. Highs in the
mid 80s. Lows in the upper 70s.


$$

MPZ001>003-290900-
Rota-Tinian-Saipan-
352 AM ChST Sat Aug 29 2026

.TODAY...Partly sunny with scattered showers and isolated
thunderstorms. Locally heavy showers possible for Rota in the
morning. Light and variable winds becoming northwest around 10 mph in
the afternoon. Highs around 87. Chance of showers 40 percent.
.TONIGHT...Mostly cloudy with scattered showers and isolated
thunderstorms. Northwest winds 10 to 15 mph. Lows around 77. Chance
of showers 50 percent.
.SUNDAY AND SUNDAY NIGHT...Mostly cloudy. Scattered showers and
isolated thunderstorms. Locally heavy showers possible. West winds
10 to 15 mph. Highs around 86. Lows around 78. Chance of showers 40
percent.
.MONDAY...Partly sunny with scattered showers and isolated
thunderstorms. Light and variable winds. Highs around 87. Chance of
showers 30 percent.
.MONDAY NIGHT THROUGH FRIDAY...Breezy. Mostly cloudy with a 40
percent chance of showers and a slight chance of thunderstorms. Lows
in the upper 70s. Highs in the mid 80s.

$$