942
FPMY50 PGUM 250521
ZFPGUM
ZONE FORECAST FOR GUAM AND THE NORTHERN MARIANAS
NATIONAL WEATHER SERVICE TIYAN GU
321 PM CHST TUE AUG 25 2026
GUZ001-MPZ001>003-252100-
GUAM-ROTA-TINIAN-SAIPAN-
321 PM CHST TUE AUG 25 2026
TONIGHT
PARTLY CLOUDY WITH ISOLATED SHOWERS AND THUNDERSTORMS.
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS
AFTER MIDNIGHT FOR GUAM AND ROTA. WEST WINDS 5 MPH. LOWS AROUND 78.
CHANCE OF SHOWERS 30 PERCENT.
WEDNESDAY
PARTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS FOR GUAM AND ROTA. MOSTLY SUNNY WITH ISOLATED SHOWERS
AND THUNDERSTORMS BECOMING PARTLY CLOUDY WITH SCATTERED ISLAND EFFECT
SHOWERS AND ISOLATED THUNDERSTORMS IN THE AFTERNOON FOR TINIAN AND
SAIPAN. LIGHT AND VARIABLE WINDS BECOMING NORTHWEST 5 TO 10 MPH IN
THE AFTERNOON. HIGHS AROUND 87. CHANCE OF SHOWERS 30 PERCENT.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LIGHT AND VARIABLE WINDS. LOWS AROUND 79. CHANCE OF
SHOWERS 30 PERCENT.
THURSDAY
PARTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS FOR GUAM AND ROTA. MOSTLY SUNNY WITH ISOLATED SHOWERS
AND THUNDERSTORMS BECOMING PARTLY CLOUDY WITH SCATTERED ISLAND EFFECT
SHOWERS AND ISOLATED THUNDERSTORMS IN THE AFTERNOON FOR TINIAN AND
SAIPAN. WEST WINDS 5 TO 10 MPH. HIGHS AROUND 87. CHANCE OF SHOWERS 30
PERCENT.
THURSDAY NIGHT THROUGH FRIDAY
MOSTLY CLOUDY WITH SCATTERED
SHOWERS AND ISOLATED THUNDERSTORMS. WEST WINDS 5 TO 15 MPH. HIGHS
AROUND 86. LOWS AROUND 78. CHANCE OF SHOWERS 40 PERCENT.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A 40 PERCENT CHANCE OF SHOWERS
AND A SLIGHT CHANCE OF THUNDERSTORMS. LOCALLY HEAVY SHOWERS POSSIBLE.
LOWS IN THE UPPER 70S.
SATURDAY THROUGH TUESDAY
MOSTLY CLOUDY WITH A 40 PERCENT CHANCE
OF SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER
70S. HIGHS IN THE UPPER 80S.
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