Zone Forecast Product
Issued by NWS Tiyan, Guam

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FPMY50 PGUM 290536
ZFPGUM

Zone Forecast for Guam and the Northern Marianas
National Weather Service Tiyan GU
336 PM ChST Sat Nov 29 2025

GUZ001-MPZ001-292100-
Guam-Rota-
336 PM ChST Sat Nov 29 2025

...HIGH RIP CURRENT RISK IN EFFECT FROM SUNDAY MORNING THROUGH
WEDNESDAY AFTERNOON ALONG EAST FACING REEFS...

.TONIGHT...Mostly cloudy with scattered showers becoming cloudy with
numerous showers late evening. Isolated thunderstorms. East winds 10
to 15 mph. Gusts to 25 mph near showers. Lows around 77. Chance of
showers 70 percent.
.SUNDAY...Breezy. Cloudy. Numerous showers and isolated
thunderstorms. Locally heavy showers possible. East winds 15 to 25
mph with gusts to 30 mph near showers. Highs around 86. Chance of
showers 70 percent.
.SUNDAY NIGHT...Cloudy with numerous showers and isolated
thunderstorms. East winds 10 to 15 mph. Lows around 79. Chance of
showers 60 percent.
.MONDAY...Mostly cloudy with numerous showers and isolated
thunderstorms. Southeast winds 10 to 15 mph. Highs around 86. Chance
of showers 60 percent.
.MONDAY NIGHT AND TUESDAY...Mostly cloudy with scattered showers and
isolated thunderstorms. East winds 15 to 20 mph. Lows around 77.
Highs around 86. Chance of showers 50 percent.
.TUESDAY NIGHT...Mostly cloudy with a 30 percent chance of showers.
Lows in the upper 70s.
.WEDNESDAY...Partly cloudy with a 20 percent chance of showers.
Highs in the mid 80s.
.WEDNESDAY NIGHT...Mostly cloudy with a 40 percent chance of
showers. Lows in the upper 70s.
.THURSDAY AND THURSDAY NIGHT...Mostly cloudy. A 40 percent chance of
showers and a slight chance of thunderstorms. Highs in the mid 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.

$$

MPZ002-003-292100-
Tinian-Saipan-
336 PM ChST Sat Nov 29 2025

...HIGH RIP CURRENT RISK IN EFFECT FROM SUNDAY MORNING THROUGH
WEDNESDAY AFTERNOON ALONG EAST FACING REEFS...

.TONIGHT...Mostly cloudy. Scattered showers in the evening, then
numerous showers and isolated thunderstorms after midnight. East
winds 15 to 20 mph. Lows around 75. Chance of showers 60 percent.
.SUNDAY...Breezy. Cloudy. Numerous showers in the morning, then
scattered showers in the afternoon. Isolated thunderstorms. East
winds 15 to 25 mph. Highs around 85. Chance of showers 70 percent.
.SUNDAY NIGHT...Mostly cloudy with scattered showers and isolated
thunderstorms. East winds 15 to 20 mph. Lows around 77. Chance of
showers 40 percent.
.MONDAY...Partly sunny with scattered showers and isolated
thunderstorms. East winds 15 to 20 mph. Highs around 87. Chance of
showers 50 percent.
.MONDAY NIGHT AND TUESDAY...Partly cloudy with isolated showers.
Southeast winds 15 to 20 mph. Lows around 78. Highs around 86. Chance
of showers 20 percent.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. A 20 percent chance of
showers. Lows in the upper 70s. Highs in the upper 80s.
.WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of
showers. Lows in the upper 70s.
.THURSDAY AND THURSDAY NIGHT...Mostly cloudy. A 30 percent chance of
showers. 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.

$$