


Zone Forecast Product
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
773 FPMY50 PGUM 141703 ZFPGUM Zone Forecast for Guam and the Northern Marianas National Weather Service TIYAN GU 303 AM ChST Sun Jun 15 2025 GUZ001-MPZ001>003-150900- Guam-Rota-Tinian-Saipan- 303 AM ChST Sun Jun 15 2025 .TODAY...Partly cloudy with isolated showers. East winds 10 to 15 mph. Highs around 88. Chance of showers 20 percent. .TONIGHT...Partly cloudy with isolated showers. East winds 10 to 15 mph. Lows around 78. Chance of showers 20 percent. .MONDAY THROUGH TUESDAY...Partly cloudy with isolated showers. East winds 10 to 15 mph. Highs around 88. Lows around 77. Chance of showers 20 percent. .TUESDAY NIGHT THROUGH SATURDAY...Partly cloudy with a 20 percent chance of showers. Lows in the upper 70s. Highs in the upper 80s. $$