


Zone Forecast Product
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
108 FPMY50 PGUM 040528 ZFPGUM Zone Forecast for Guam and the Northern Marianas National Weather Service Tiyan GU 328 PM ChST Fri Jul 4 2025 GUZ001-MPZ001>003-042300- Guam-Rota-Tinian-Saipan- 328 PM ChST Fri Jul 4 2025 .TONIGHT...Partly cloudy with isolated showers. Southeast winds 5 to 10 mph. Lows around 78. Chance of showers 20 percent. .SATURDAY...Partly sunny with scattered showers and isolated thunderstorms. Southeast winds 5 to 10 mph. Highs around 87. Chance of showers 30 percent. .SATURDAY NIGHT...Mostly cloudy with scattered showers and isolated thunderstorms. Light and variable winds. Lows around 78. Chance of showers 30 percent. .SUNDAY...Mostly cloudy with scattered showers and isolated thunderstorms. South to southwest winds around 5 mph. Highs around 87. Chance of showers 30 percent. .SUNDAY NIGHT...Mostly cloudy with scattered showers and isolated thunderstorms. Light and variable winds. Lows around 78. Chance of showers 30 percent. .MONDAY...Mostly cloudy with scattered showers and isolated thunderstorms. South to southwest winds 5 to 10 mph. Highs around 87. Chance of showers 30 percent. .MONDAY NIGHT...Mostly cloudy with scattered showers and isolated thunderstorms. Lows in the upper 70s. Chance of showers 40 percent. .TUESDAY THROUGH WEDNESDAY NIGHT...Mostly cloudy with a 40 percent chance of showers and a slight chance of thunderstorms. Highs in the upper 80s. Lows in the upper 70s. .THURSDAY THROUGH FRIDAY...Mostly cloudy with a 30 percent chance of showers and a slight chance of thunderstorms. Highs in the upper 80s. Lows in the upper 70s. Chance of showers 30 percent. $$