


Zone Forecast Product
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
688 FPMY50 PGUM 041701 ZFPGUM Zone Forecast for Guam and the Northern Marianas National Weather Service Tiyan GU 301 AM ChST Sat Jul 5 2025 GUZ001-MPZ001>003-050900- Guam-Rota-Tinian-Saipan- 301 AM ChST Sat Jul 5 2025 .TODAY...Partly sunny with scattered island showers and isolated thunderstorms. Southeast winds 5 to 10 mph. Highs around 87. Chance of showers 30 percent. .TONIGHT...Partly cloudy with isolated showers and thunderstorms. Light and variable winds. Lows around 79. Chance of showers 20 percent. .SUNDAY THROUGH MONDAY....Mostly cloudy with scattered showers and isolated thunderstorms. South to southwest winds around 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. $$