565
FPMY50 PGUM 302339
ZFPGUM

Zone Forecast for Guam and the Northern Marianas
National Weather Service Tiyan GU
939 AM ChST Thu Oct 1 2026

GUZ001-MPZ001-010900-
Guam-Rota-
939 AM ChST Thu Oct 1 2026

...HIGH SURF ADVISORY IN EFFECT FROM 4 AM FRIDAY TO 4 AM CHST MONDAY
ALONG NORTH, WEST AND SOUTH FACING REEFS...
...WIND ADVISORY IN EFFECT FROM 4 AM FRIDAY TO 4 AM CHST SUNDAY...
...HIGH RIP CURRENT RISK IN EFFECT FROM LATE TONIGHT THROUGH LATE
SUNDAY NIGHT ALONG NORTH, WEST AND SOUTH FACING REEFS...

.TODAY...Mostly cloudy and breezy with scattered showers and
isolated thunderstorms. West winds 15 to 25 mph. Highs around 87.
Chance of showers 50 percent.
.TONIGHT...Cloudy and windy with numerous showers and isolated
thunderstorms. West winds 15 to 25 mph increasing to 25 to 35 mph
after midnight. Lows around 78. Chance of showers 60 percent.
.FRIDAY...Very windy. Southwest winds 25 to 35 mph. Cloudy with
numerous showers and isolated thunderstorms. Highs around 84. Chance
of showers 60 percent.
.FRIDAY NIGHT AND SATURDAY...Very windy. Southwest winds 25 to 35
mph. Cloudy with numerous showers and isolated thunderstorms. Lows
around 76. Highs around 82. Chance of showers 70 percent.
.SATURDAY NIGHT...Windy. Cloudy with numerous showers and isolated
thunderstorms. Lows in the mid 70s. Chance of showers 60 percent.
.SUNDAY...Windy. Mostly cloudy with numerous showers and isolated
thunderstorms. Highs in the upper 80s. Chance of showers 60 percent.
.SUNDAY NIGHT THROUGH MONDAY NIGHT...Windy. Mostly cloudy with a
50 percent chance of showers and a slight chance of thunderstorms.
Lows in the upper 70s. Highs in the upper 80s.
.TUESDAY...Breezy. Partly sunny with a 20 percent chance of showers
and thunderstorms. Highs in the upper 80s.
.TUESDAY NIGHT AND WEDNESDAY...Breezy. Mostly cloudy. A chance of
showers and a slight chance of thunderstorms. Lows around 80. Highs
in the mid 80s. Chance of showers 30 percent.

$$

MPZ002-003-010900-
Tinian-Saipan-
939 AM ChST Thu Oct 1 2026

...COASTAL FLOOD WATCH IN EFFECT THROUGH MONDAY EVENING ALONG NORTH
AND WEST FACING REEFS...
...TROPICAL STORM WARNING IN EFFECT...
...FLOOD WATCH IN EFFECT FROM THIS EVENING THROUGH SUNDAY NIGHT...
...HIGH SURF ADVISORY IN EFFECT FROM 4 AM FRIDAY TO 4 AM CHST MONDAY
ALONG NORTH AND WEST FACING REEFS...
...HIGH RIP CURRENT RISK IN EFFECT FROM LATE TONIGHT THROUGH LATE
SUNDAY NIGHT ALONG NORTH AND WEST FACING REEFS...

.TODAY...Cloudy and breezy with numerous showers and isolated
thunderstorms. Northwest winds 15 to 25 mph. Highs around 87. Chance
of showers 60 percent.
.TONIGHT...Very windy. West winds 25 to 35 mph. Cloudy with numerous
showers and isolated thunderstorms. Lows around 81. Chance of
showers 70 percent.
.FRIDAY...West winds 35 to 45 mph with gusts to 60 mph expected.
Cloudy with numerous showers and isolated thunderstorms. Highs around
85. Chance of showers 70 percent.
.FRIDAY NIGHT AND SATURDAY...West winds 35 to 45 mph with gusts to 60
mph expected. Cloudy with widespread locally heavy showers and
isolated thunderstorms. Lows around 79. Highs around 84. Chance of
showers 80 percent.
.SATURDAY NIGHT AND SUNDAY...Very windy. Cloudy with numerous
showers and isolated thunderstorms. Lows in the upper 70s. Highs in
the upper 80s. Chance of showers 70 percent.
.SUNDAY NIGHT THROUGH MONDAY NIGHT...Windy. 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.
.TUESDAY...Breezy. Partly cloudy with a 20 percent chance of showers
and thunderstorms. Highs in the upper 80s.
.TUESDAY NIGHT AND WEDNESDAY...Mostly cloudy and breezy. A chance of
showers and a slight chance of thunderstorms. Lows in the upper 70s.
Highs in the mid 80s. Chance of showers 30 percent.

$$