318
FPMY50 PGUM 141743
ZFPGUM
ZONE FORECAST FOR GUAM AND THE NORTHERN MARIANAS
NATIONAL WEATHER SERVICE TIYAN GU
343 AM CHST TUE SEP 15 2026
GUZ001-MPZ001-150830-
GUAM-ROTA-
343 AM CHST TUE SEP 15 2026
TODAY
CLOUDY. SCATTERED SHOWERS IN THE MORNING, THEN NUMEROUS
SHOWERS IN THE AFTERNOON. ISOLATED THUNDERSTORMS. LOCALLY HEAVY
RAINFALL POSSIBLE. NORTHWEST WINDS 10 TO 15 MPH. HIGHS AROUND 85.
CHANCE OF SHOWERS 70 PERCENT.
TONIGHT
MOSTLY CLOUDY. NUMEROUS SHOWERS IN THE EVENING, THEN
SCATTERED SHOWERS AFTER MIDNIGHT. ISOLATED THUNDERSTORMS. LOCALLY
HEAVY RAINFALL POSSIBLE. NORTHWEST WINDS 10 TO 15 MPH. LOWS AROUND
76. CHANCE OF SHOWERS 70 PERCENT.
WEDNESDAY
PARTLY CLOUDY WITH ISOLATED SHOWERS. WEST WINDS 10 TO
15 MPH. HIGHS AROUND 87. CHANCE OF SHOWERS 20 PERCENT.
WEDNESDAY NIGHT AND THURSDAY
MOSTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS. WEST WINDS 5 TO 15 MPH. LOWS AROUND 78. HIGHS AROUND
87. CHANCE OF SHOWERS 20 PERCENT.
THURSDAY NIGHT THROUGH FRIDAY NIGHT
MOSTLY CLOUDY WITH A
30 PERCENT CHANCE OF SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS.
LOWS IN THE UPPER 70S. HIGHS IN THE UPPER 80S.
SATURDAY
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE UPPER 80S.
SATURDAY NIGHT THROUGH MONDAY
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER 70S.
HIGHS IN THE UPPER 80S. CHANCE OF SHOWERS 40 PERCENT.
MPZ002-003-150830-
TINIAN-SAIPAN-
343 AM CHST TUE SEP 15 2026
TODAY
MOSTLY CLOUDY. SCATTERED SHOWERS IN THE MORNING, THEN
NUMEROUS SHOWERS AND ISOLATED THUNDERSTORMS IN THE AFTERNOON.
NORTHEAST WINDS AROUND 10 MPH IN THE MORNING BECOMING LIGHT. HIGHS
AROUND 86. CHANCE OF SHOWERS 60 PERCENT.
TONIGHT
CLOUDY WITH NUMEROUS SHOWERS AND ISOLATED THUNDERSTORMS.
LOCALLY HEAVY RAINFALL POSSIBLE. NORTH WINDS 10 TO 15 MPH. LOWS
AROUND 79. CHANCE OF SHOWERS 70 PERCENT.
WEDNESDAY THROUGH THURSDAY
PARTLY CLOUDY WITH ISOLATED SHOWERS.
WEST WINDS 10 TO 15 MPH. HIGHS AROUND 87. LOWS AROUND 78. CHANCE OF
SHOWERS 20 PERCENT.
THURSDAY NIGHT THROUGH SATURDAY
PARTLY CLOUDY WITH A 20 PERCENT
CHANCE OF SHOWERS. LOWS IN THE UPPER 70S. HIGHS IN THE UPPER 80S.
SATURDAY NIGHT THROUGH MONDAY
MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER 70S.
HIGHS IN THE UPPER 80S. CHANCE OF SHOWERS 30 PERCENT.
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