765
FPMY50 PGUM 221806
ZFPGUM
ZONE FORECAST FOR GUAM AND THE NORTHERN MARIANAS
NATIONAL WEATHER SERVICE TIYAN GU
406 AM CHST SUN AUG 23 2026
GUZ001-MPZ001>003-230830-
GUAM-ROTA-TINIAN-SAIPAN-
406 AM CHST SUN AUG 23 2026
...HIGH SURF ADVISORY IN EFFECT UNTIL 4 PM CHST THIS AFTERNOON ALONG
NORTH AND WEST FACING REEFS...
...HIGH RIP CURRENT RISK IN EFFECT THROUGH THIS AFTERNOON ALONG NORTH
AND WEST FACING REEFS...
TODAY
PARTLY SUNNY. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.
SOUTHWEST WINDS 15 TO 20 MPH. HIGHS AROUND 87. CHANCE OF SHOWERS 30
PERCENT.
TONIGHT
MOSTLY CLOUDY WITH NUMEROUS SHOWERS AND ISOLATED
THUNDERSTORMS. SOUTHWEST WINDS 10 TO 15 MPH. LOWS AROUND 77. CHANCE
OF SHOWERS 70 PERCENT.
MONDAY
PARTLY SUNNY. SCATTERED SHOWERS. ISOLATED THUNDERSTORMS.
SOUTHWEST WINDS 10 TO 15 MPH. HIGHS NEAR 86. CHANCE OF SHOWERS 30
PERCENT.
MONDAY NIGHT AND TUESDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND
ISOLATED THUNDERSTORMS. SOUTHWEST WINDS 10 TO 15 MPH. LOWS AROUND
79. HIGHS NEAR 85. CHANCE OF SHOWERS 40 PERCENT.
TUESDAY NIGHT AND WEDNESDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND
ISOLATED THUNDERSTORMS. LOWS IN THE UPPER 70S. HIGHS IN THE MID 80S.
CHANCE OF SHOWERS 40 PERCENT.
WEDNESDAY NIGHT AND THURSDAY
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.
THURSDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A SLIGHT
CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER 70S. CHANCE OF SHOWERS
60 PERCENT.
FRIDAY
BREEZY. CLOUDY WITH SHOWERS LIKELY AND A SLIGHT CHANCE OF
THUNDERSTORMS. HIGHS IN THE MID 80S. CHANCE OF SHOWERS 70 PERCENT.
FRIDAY NIGHT AND SATURDAY
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 40 PERCENT.
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