Zone Forecast Product
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
777 FPMY50 PGUM 212113 AAA ZFPGUM Zone Forecast for Guam and the Northern Marianas...UPDATED National Weather Service Tiyan GU 713 AM ChST Tue Sep 22 2026 GUZ001-220815- Guam- 713 AM ChST Tue Sep 22 2026 ...FLASH FLOOD WATCH HAS BEEN CANCELLED... .REST OF TODAY...Mostly cloudy with scattered showers and isolated thunderstorms. Southeast winds 15 to 20 mph. Highs around 87. Chance of showers 50 percent. .TONIGHT...Mostly cloudy with scattered showers and isolated thunderstorms. South winds 10 to 15 mph. Lows around 77. Chance of showers 50 percent. .WEDNESDAY...Mostly cloudy with scattered showers and isolated thunderstorms. South winds 10 to 15 mph. Highs around 86. Chance of showers 50 percent. .WEDNESDAY NIGHT...Mostly cloudy with scattered showers and isolated thunderstorms. Southwest winds 10 to 15 mph. Lows around 77. Chance of showers 40 percent. .THURSDAY...Partly sunny. Scattered showers and isolated thunderstorms in the morning, then a 40 percent chance of showers and a slight chance of thunderstorms in the afternoon. Southwest winds 10 to 15 mph. Highs around 86. .THURSDAY NIGHT THROUGH MONDAY...Mostly cloudy with a chance of showers and a slight chance of thunderstorms. Lows in the upper 70s. Highs in the mid 80s. Chance of showers 30 percent. $$ MPZ001>003-220815- Rota-Tinian-Saipan- 713 AM ChST Tue Sep 22 2026 .REST OF TODAY...Mostly cloudy with scattered showers and isolated thunderstorms. Southeast winds 10 to 15 mph. Highs around 88. Chance of showers 50 percent. .TONIGHT...Mostly cloudy with scattered showers and isolated thunderstorms. Southeast winds 10 to 15 mph. Lows around 79. Chance of showers 50 percent. .WEDNESDAY...Mostly cloudy with scattered showers and isolated thunderstorms. South winds 10 to 15 mph. Highs around 87. Chance of showers 50 percent. .WEDNESDAY NIGHT...Mostly cloudy with scattered showers and isolated thunderstorms. Light and variable winds. Lows around 79. Chance of showers 40 percent. .THURSDAY...Partly sunny. Scattered showers and isolated thunderstorms in the morning, then a 40 percent chance of showers and a slight chance of thunderstorms in the afternoon. Light and variable winds. Highs around 87. .THURSDAY NIGHT...Mostly cloudy with a 30 percent chance of showers. Lows in the upper 70s. .FRIDAY AND FRIDAY NIGHT...Mostly cloudy. A 30 percent chance of showers and a slight chance of thunderstorms. Highs in the upper 80s. Lows in the upper 70s. .SATURDAY THROUGH SUNDAY...Mostly cloudy with a 30 percent chance of showers. Highs in the upper 80s. Lows around 80. .SUNDAY NIGHT AND MONDAY...Mostly cloudy. A chance of showers and a slight chance of thunderstorms. Lows around 80. Highs in the upper 80s. Chance of showers 30 percent. $$