


Zone Forecast Product
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
006 FPMY50 PGUM 060516 ZFPGUM Zone Forecast for Guam and the Northern Marianas National Weather Service Tiyan GU 316 PM ChST Sun Jul 6 2025 GUZ001-MPZ001>003-062200- Guam-Rota-Tinian-Saipan- 316 PM ChST Sun Jul 6 2025 .TONIGHT...Mostly cloudy with scattered showers and isolated thunderstorms. Light and variable winds becoming southwest 5 to 10 mph after midnight. Lows around 78. Chance of showers 40 percent. .MONDAY...Mostly cloudy with scattered showers and isolated thunderstorms. Locally heavy island-effect showers possible. Southwest winds 5 to 10 mph. Highs around 87. Chance of showers 40 percent. .MONDAY NIGHT...Mostly cloudy with scattered showers and isolated thunderstorms. Southwest to south winds 5 to 10 mph. Lows around 78. Chance of showers 30 percent. .TUESDAY THROUGH WEDNESDAY NIGHT...Mostly cloudy with 30 percent scattered showers and isolated thunderstorms. South winds 5 to 15 mph. Highs around 88. Lows around 79. Chance of showers 30 percent. .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. .FRIDAY NIGHT THROUGH SUNDAY...Mostly cloudy with a 40 percent chance of showers and a slight chance of thunderstorms. Lows in the upper 70s. Highs in the upper 80s. $$