


Zone Forecast Product
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
555 FPMY50 PGUM 151722 ZFPGUM Zone Forecast for Guam and the Northern Marianas National Weather Service TIYAN GU 322 AM ChST Mon Jun 16 2025 GUZ001-MPZ001>003-160900- Guam-Rota-Tinian-Saipan- 322 AM ChST Mon Jun 16 2025 .TODAY...Partly cloudy with isolated showers. East winds 10 to 15 mph. Highs around 87. Chance of showers 20 percent. .TONIGHT...Mostly cloudy with isolated showers. East winds around 10 mph in the evening becoming light. Lows around 78. Chance of showers 20 percent. .TUESDAY THROUGH WEDNESDAY...Partly cloudy with isolated showers. East winds 10 to 15 mph. Highs around 87. Lows around 78. Chance of showers 20 percent. .WEDNESDAY NIGHT THROUGH SUNDAY...Partly cloudy with a 20 percent chance of showers. Lows in the upper 70s. Highs in the upper 80s. $$