FPMY50 PGUM 070442 ZFPGUM Zone Forecast for Guam and the Northern Marianas National Weather Service TIYAN GU 242 PM ChST Mon Apr 7 2025 GUZ001-MPZ001>003-072015- Guam-Rota-Tinian-Saipan- 242 PM ChST Mon Apr 7 2025 .TONIGHT...Partly cloudy with isolated light showers. East winds 5 to 15 mph. Lows around 78. Chance of showers 10 percent. .TUESDAY...Mostly sunny with isolated light showers. East winds 10 to 15 mph. Highs near 87. Chance of showers 10 percent. .TUESDAY NIGHT...Partly cloudy with isolated showers. East winds 10 to 15 mph. Lows around 78. Chance of showers 20 percent. .WEDNESDAY THROUGH THURSDAY...Partly cloudy with isolated showers. East winds 10 to 15 mph. Highs near 88. Lows around 78. Chance of showers 10 percent. .THURSDAY NIGHT THROUGH MONDAY...Partly cloudy with a 20 percent chance of showers. Lows in the upper 70s. Highs in the upper 80s. $$