


Zone Forecast Product
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
705 FPMY50 PGUM 281644 ZFPGUM Zone Forecast for Guam and the Northern Marianas National Weather Service TIYAN GU 244 AM ChST Sun Jun 29 2025 GUZ001-MPZ001-290915- Guam-Rota- 244 AM ChST Sun Jun 29 2025 ...FLOOD WATCH IN EFFECT THROUGH LATE TONIGHT... .TODAY...Cloudy with numerous heavy showers and isolated thunderstorms. Light and variable winds becoming south 10 to 15 mph in the afternoon. Locally heavy rainfall possible. Highs around 84. Chance of showers 70 percent. .TONIGHT...Cloudy with numerous heavy showers and isolated thunderstorms. Southwest winds 10 to 15 mph. Locally heavy rainfall possible. Lows around 76. Chance of showers 70 percent. .MONDAY THROUGH TUESDAY...Mostly cloudy with scattered showers and isolated thunderstorms. Southwest winds 10 to 15 mph. Highs near 87. Lows around 77. Chance of showers 50 percent. .TUESDAY NIGHT THROUGH SATURDAY...Mostly cloudy with a 30 percent chance of showers. Lows in the upper 70s. Highs in the upper 80s. $$ MPZ002-003-290915- Tinian-Saipan- 244 AM ChST Sun Jun 29 2025 .TODAY...Mostly cloudy with numerous heavy showers and isolated thunderstorms. Southeast winds 10 to 15 mph. Locally heavy rainfall possible. Highs around 83. Chance of showers 60 percent. .TONIGHT...Cloudy with numerous heavy showers and isolated thunderstorms. South winds 10 to 15 mph. Locally heavy rainfall possible. Lows around 78. Chance of showers 60 percent. .MONDAY THROUGH TUESDAY...Mostly cloudy with scattered showers and isolated thunderstorms. Southwest winds 15 to 20 mph. Highs around 86. Lows around 78. Chance of showers 50 percent. .TUESDAY NIGHT THROUGH SATURDAY...Mostly cloudy with a 40 percent chance of showers and a slight chance of thunderstorms. Lows in the upper 70s. $$