001
FPMY50 PGUM 211107
ZFPGUM

Zone Forecast for Guam and the Northern Marianas
National Weather Service Tiyan GU
907 PM ChST Fri Aug 21 2026

GUZ001-MPZ001-212030-
Guam-Rota-
907 PM ChST Fri Aug 21 2026

...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH SUNDAY AFTERNOON
ALONG EAST FACING REEFS...

.REST OF TONIGHT...Mostly cloudy with scattered showers and isolated
thunderstorms. West winds 10 to 15 mph. Lows around 77. Chance of
showers 30 percent.
.SATURDAY...Breezy. Partly sunny with scattered showers and isolated
thunderstorms. Southwest winds 15 to 25 mph. Highs around 87. Chance
of showers 30 percent.
.SATURDAY NIGHT...Breezy. Mostly cloudy with scattered showers and
isolated thunderstorms. Southwest winds 15 to 25 mph. Lows around
77. Chance of showers 50 percent.
.SUNDAY THROUGH MONDAY...Breezy. Mostly cloudy with scattered
showers and isolated thunderstorms. Southwest winds 15 to 25 mph.
Highs around 86. Lows around 77. Chance of showers 30 percent.
.MONDAY NIGHT THROUGH WEDNESDAY...Mostly cloudy with a 50 percent
chance of showers and a slight chance of thunderstorms. Lows in the
upper 70s. Highs in the mid 80s.
.WEDNESDAY NIGHT...Cloudy with showers likely and a slight chance of
thunderstorms. Lows in the upper 70s. Chance of showers 60 percent.
.THURSDAY...Breezy. Mostly cloudy with showers likely and a slight
chance of thunderstorms. Highs in the mid 80s. Chance of showers
60 percent.
.THURSDAY NIGHT AND FRIDAY...Breezy. Mostly cloudy. A chance of
showers and a slight chance of thunderstorms. Lows in the upper 70s.
Highs in the mid 80s. Chance of showers 50 percent.

$$

MPZ002-003-212030-
Tinian-Saipan-
907 PM ChST Fri Aug 21 2026

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 5 PM CHST SUNDAY ALONG
NORTH FACING REEFS...
...HIGH RIP CURRENT RISK REMAINS THROUGH SUNDAY AFTERNOON ALONG
NORTH AND EAST FACING REEFS...
...TROPICAL STORM WATCH REMAINS IN EFFECT...

.REST OF TONIGHT...Mostly cloudy with scattered showers and isolated
thunderstorms. Northwest winds 15 to 20 mph. Lows around 79. Chance
of showers 50 percent.
.SATURDAY...Breezy. Mostly cloudy with scattered showers and
isolated thunderstorms. West winds 20 to 25 mph. Highs near 87.
Chance of showers 50 percent.
.SATURDAY NIGHT...Breezy. Partly cloudy with scattered showers and
isolated thunderstorms. Southwest winds 15 to 25 mph. Lows around
78. Chance of showers 30 percent.
.SUNDAY AND SUNDAY NIGHT...Breezy. Mostly cloudy. Scattered showers
and isolated thunderstorms. South winds 15 to 20 mph. Highs around
87. Lows around 78. Chance of showers 30 percent.
.MONDAY...Breezy. Partly sunny with isolated showers. South winds 15
to 20 mph. Highs near 88. Chance of showers 20 percent.
.MONDAY NIGHT...Mostly cloudy with a 30 percent chance of showers.
Lows in the upper 70s.
.TUESDAY...Partly sunny with a 20 percent chance of showers. Highs
in the upper 80s.
.TUESDAY NIGHT THROUGH FRIDAY...Breezy. Mostly cloudy with a chance
of showers and a slight chance of thunderstorms. Lows in the upper
70s. Highs in the mid 80s. Chance of showers 50 percent.

$$