258
FPMY50 PGUM 011640
ZFPGUM

Zone Forecast for Guam and the Northern Marianas
National Weather Service Tiyan GU
240 AM ChST Fri Oct 2 2026

GUZ001-MPZ001-020845-
Guam-Rota-
240 AM ChST Fri Oct 2 2026

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

.TODAY...Windy. Southwest winds 25 to 35 mph with gusts to 50 mph.
Cloudy with numerous locally heavy showers and isolated
thunderstorms. Highs around 84. Chance of showers 70 percent.
.TONIGHT...Windy. Southwest winds 25 to 35 mph with gusts to 50 mph.
Mostly cloudy with scattered showers and isolated thunderstorms.
Locally heavy showers possible. Lows around 77. Chance of showers 50
percent.
.SATURDAY...Windy. Southwest winds 25 to 35 mph with gusts to 50 mph.
Mostly cloudy with scattered showers and isolated thunderstorms.
Locally heavy showers possible. Highs around 85. Chance of showers 50
percent.
.SATURDAY NIGHT...Windy. Southwest winds 25 to 35 mph with gusts to
45 mph. Mostly cloudy with scattered showers and isolated
thunderstorms. Lows around 77. Chance of showers 30 percent.
.SUNDAY...Windy. Partly sunny with isolated showers and
thunderstorms. Southwest winds 25 to 35 mph with gusts to 45 mph.
Highs around 87. Chance of showers 20 percent.
.SUNDAY NIGHT...Windy. Mostly cloudy with scattered showers. Lows in
the upper 70s. Chance of showers 30 percent.
.MONDAY...Windy. Partly sunny with scattered showers and isolated
thunderstorms. Highs in the upper 80s. Chance of showers 30 percent.
.MONDAY NIGHT AND TUESDAY...Windy. Mostly cloudy with a 50 percent
chance of showers and thunderstorms. Lows in the upper 70s. Highs in
the upper 80s.
.TUESDAY NIGHT THROUGH THURSDAY...Breezy. Mostly cloudy with a
chance of showers and a slight chance of thunderstorms. Lows in the
lower 80s. Highs in the mid 80s. Chance of showers 50 percent.

$$

MPZ002-003-020845-
Tinian-Saipan-
240 AM ChST Fri Oct 2 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 10 PM CHST THIS EVENING THROUGH LATE
SUNDAY NIGHT...
...HIGH SURF ADVISORY IN EFFECT FROM 4 AM FRIDAY TO 4 AM CHST MONDAY
ALONG NORTH AND WEST FACING REEFS...
...HIGH RISK OF RIP CURRENTS FROM LATE TONIGHT THROUGH LATE SUNDAY
NIGHT ALONG NORTH AND WEST FACING REEFS...

.TODAY...Tropical storm conditions expected. Southwest winds 40 to
50 mph. Cloudy with widespread locally heavy showers and scattered
thunderstorms. Highs around 85. Chance of showers 80 percent.
.TONIGHT...Tropical storm conditions expected. Southwest winds 40 to
50 mph. Cloudy with numerous showers and isolated thunderstorms.
Lows around 77. Chance of showers 70 percent.
.SATURDAY THROUGH SUNDAY...Tropical storm conditions expected.
Southwest winds 35 to 45 mph. Cloudy with numerous locally heavy
showers and isolated thunderstorms. Highs around 85. Chance of
showers 70 percent Saturday, decreasing to 30 percent.
.SUNDAY NIGHT AND MONDAY...Windy. Mostly cloudy. Scattered showers
and isolated thunderstorms. Lows in the upper 70s. Highs in the mid
80s. Chance of showers 30 percent.
.MONDAY NIGHT...Windy. Mostly cloudy with a 20 percent chance of
showers and thunderstorms. Lows in the upper 70s.
.TUESDAY...Breezy. Partly sunny with a 30 percent chance of showers
and a slight chance of thunderstorms. Highs in the upper 80s.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Mostly cloudy with a
40 percent chance of showers and a slight chance of thunderstorms.
Lows in the lower 80s. Highs in the mid 80s.
.THURSDAY...Partly sunny with a 20 percent chance of showers and
thunderstorms. Highs in the mid 80s.

$$