815
FPMY50 PGUM 210511
ZFPGUM
ZONE FORECAST FOR GUAM AND THE NORTHERN MARIANAS
NATIONAL WEATHER SERVICE TIYAN GU
311 PM CHST TUE JUL 21 2026
GUZ001-MPZ001>003-212200-
GUAM-ROTA-TINIAN-SAIPAN-
311 PM CHST TUE JUL 21 2026
TONIGHT
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS FOR GUAM. ISOLATED SHOWERS AND THUNDERSTORMS FOR ROTA
TINIAN AND SAIPAN. SOUTHEAST WINDS 5 TO 10 MPH, BECOMING SOUTH AFTER
MIDNIGHT. LOWS AROUND 78. CHANCE OF SHOWERS 30 PERCENT.
WEDNESDAY
PARTLY SUNNY. ISOLATED SHOWERS AND THUNDERSTORMS IN THE
MORNING, THEN SCATTERED ISLAND EFFECT SHOWERS AND ISOLATED
THUNDERSTORMS IN THE AFTERNOON. SOUTH WINDS 5 TO 10 MPH. HIGHS AROUND
88. CHANCE OF SHOWERS 30 PERCENT.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH ISOLATED SHOWERS AND
THUNDERSTORMS. LIGHT AND VARIABLE WINDS. LOWS AROUND 77. CHANCE OF
SHOWERS 20 PERCENT.
THURSDAY
PARTLY CLOUDY WITH ISOLATED SHOWERS AND THUNDERSTORMS IN
THE MORNING, THEN PARTLY SUNNY WITH SCATTERED ISLAND EFFECT SHOWERS
AND ISOLATED THUNDERSTORMS IN THE AFTERNOON. LIGHT AND VARIABLE
WINDS. HIGHS AROUND 87. CHANCE OF SHOWERS 30 PERCENT.
THURSDAY NIGHT
MOSTLY CLOUDY WITH ISOLATED SHOWERS AND
THUNDERSTORMS. LIGHT AND VARIABLE WINDS. LOWS AROUND 78. CHANCE OF
SHOWERS 20 PERCENT.
FRIDAY
PARTLY SUNNY WITH ISOLATED SHOWERS IN THE MORNING, THEN
SCATTERED ISLAND EFFECT SHOWERS AND ISOLATED THUNDERSTORMS IN THE
AFTERNOON. NORTH WINDS 5 MPH. HIGHS AROUND 88. CHANCE OF SHOWERS 30
PERCENT.
FRIDAY NIGHT THROUGH MONDAY
PARTLY CLOUDY WITH A 20 PERCENT
CHANCE OF SHOWERS. LOWS IN THE UPPER 70S. HIGHS IN THE UPPER 80S.
MONDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE UPPER 70S.
TUESDAY
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE UPPER 80S.
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