


Zone Forecast Product
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
751 FPMY50 PGUM 091743 ZFPGUM Zone Forecast for Guam and the Northern Marianas National Weather Service Tiyan GU 343 AM ChST Sun Aug 10 2025 GUZ001-MPZ001>003-100900- Guam-Rota-Tinian-Saipan- 343 AM ChST Sun Aug 10 2025 .TODAY...Partly sunny with isolated showers and thunderstorms. East winds 10 to 15 mph. Highs around 88. Chance of showers 20 percent. .TONIGHT...Mostly cloudy with isolated showers. East winds 10 to 15 mph. Lows around 78. Chance of showers 20 percent. .MONDAY...Partly cloudy with isolated showers. East winds around 10 mph in the morning becoming light. Highs around 88. Chance of showers 20 percent. .MONDAY NIGHT...Partly cloudy with isolated showers. Light and variable winds. Lows around 78. Chance of showers 20 percent. .TUESDAY...Partly cloudy with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Light and variable winds. Highs around 88. Chance of showers 20 percent. .TUESDAY NIGHT THROUGH SATURDAY...Partly cloudy with a slight chance of showers. Lows in the upper 70s. Highs in the upper 80s. Chance of showers 20 percent. $$