


Zone Forecast Product
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
283 FPMY50 PGUM 081754 ZFPGUM Zone Forecast for Guam and the Northern Marianas National Weather Service Tiyan GU 354 AM ChST Wed Jul 9 2025 GUZ001-MPZ001-090900- Guam-Rota- 354 AM ChST Wed Jul 9 2025 .TODAY...Partly sunny with scattered showers and isolated thunderstorms. Locally heavy showers possible. South winds 10 to 15 mph with gusts to 25 mph near heavier showers. Highs around 87. Chance of showers 50 percent. .TONIGHT...Mostly cloudy. Scattered showers becoming isolated around midnight. Isolated thunderstorms. Southeast winds 10 to 15 mph. Lows around 77. Chance of showers 30 percent. .THURSDAY THROUGH FRIDAY...Partly cloudy with isolated showers and thunderstorms. Southeast winds 10 to 15 mph. Highs around 87. Lows around 78. Chance of showers 20 percent. .FRIDAY NIGHT...Mostly cloudy with a 30 percent chance of showers and a slight chance of thunderstorms. Lows in the upper 70s. .SATURDAY...Partly sunny with a 20 percent chance of showers and thunderstorms. Highs in the mid 80s. .SATURDAY NIGHT AND SUNDAY...Mostly cloudy. A 30 percent chance of showers and a slight chance of thunderstorms. Lows in the upper 70s. Highs in the mid 80s. .SUNDAY NIGHT AND MONDAY...Mostly cloudy. A 20 percent chance of showers and thunderstorms. Lows in the upper 70s. Highs in the mid 80s. .MONDAY NIGHT...Mostly cloudy with a 30 percent chance of showers. Lows in the upper 70s. .TUESDAY...Partly sunny with a 20 percent chance of showers. Highs in the mid 80s. $$ MPZ002-003-090900- Tinian-Saipan- 354 AM ChST Wed Jul 9 2025 .TODAY...Cloudy. Numerous showers becoming scattered in the afternoon. Locally heavy showers possible. South winds 10 to 15 mph with gusts to 25 mph near heavier showers. Highs around 86. Chance of showers 60 percent. .TONIGHT...Mostly cloudy with scattered showers becoming partly cloudy with isolated showers around midnight. Isolated thunderstorms. Southeast winds 10 to 15 mph. Lows around 78. Chance of showers 30 percent. .THURSDAY THROUGH FRIDAY...Partly cloudy with isolated showers and thunderstorms. Southeast winds 10 to 15 mph. Highs around 87. Lows around 78. Chance of showers 20 percent. .FRIDAY NIGHT...Mostly cloudy with a 30 percent chance of showers and a slight chance of thunderstorms. Lows in the upper 70s. .SATURDAY...Partly sunny with a 20 percent chance of showers and thunderstorms. Highs in the mid 80s. .SATURDAY NIGHT AND SUNDAY...Mostly cloudy. A 30 percent chance of showers and a slight chance of thunderstorms. Lows in the upper 70s. Highs in the mid 80s. .SUNDAY NIGHT AND MONDAY...Mostly cloudy. A 20 percent chance of showers and thunderstorms. Lows in the upper 70s. Highs in the mid 80s. .MONDAY NIGHT...Mostly cloudy with a 30 percent chance of showers. Lows in the upper 70s. .TUESDAY...Partly sunny with a 20 percent chance of showers. Highs in the mid 80s. $$