


Zone Forecast Product
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
511 FPMY50 PGUM 040500 ZFPGUM Zone Forecast for Guam and the Northern Marianas National Weather Service Tiyan GU 300 PM ChST Sat Oct 4 2025 GUZ001-042115- Guam- 300 PM ChST Sat Oct 4 2025 .TONIGHT...Partly cloudy with isolated showers and thunderstorms. Light and variable winds. Lows around 76. Chance of showers 20 percent. .SUNDAY AND SUNDAY NIGHT...Partly cloudy with isolated showers and thunderstorms. Light and variable winds. Highs around 87. Lows around 78. Chance of showers 20 percent. .MONDAY THROUGH TUESDAY...Mostly cloudy with scattered showers and isolated thunderstorms. Southeast winds 10 to 15 mph. Highs around 86. Lows around 76. Chance of showers 50 percent. .TUESDAY NIGHT...Mostly cloudy with a 40 percent chance of showers and a slight chance of thunderstorms. Lows in the mid 70s. .WEDNESDAY THROUGH SATURDAY...Partly cloudy with a 20 percent chance of showers. Highs in the upper 80s. Lows in the upper 70s. $$ MPZ001>003-042115- Rota-Tinian-Saipan- 300 PM ChST Sat Oct 4 2025 .TONIGHT...Mostly cloudy with isolated showers and thunderstorms. Light and variable winds. Lows around 79. Chance of showers 20 percent. .SUNDAY...Partly cloudy with isolated showers and thunderstorms. Light and variable winds. Highs around 87. Chance of showers 20 percent. .SUNDAY NIGHT...Mostly cloudy with scattered showers and isolated thunderstorms. Light and variable winds. Lows around 79. Chance of showers 30 percent. .MONDAY...Partly sunny with scattered showers and isolated thunderstorms. Southeast winds 10 to 15 mph. Highs around 87. Chance of showers 30 percent. .MONDAY NIGHT...Mostly cloudy with scattered showers. East winds 10 to 15 mph. Lows around 77. Chance of showers 50 percent. .TUESDAY...Partly sunny with scattered showers and isolated thunderstorms. Southeast winds 15 to 20 mph. Highs around 87. Chance of showers 40 percent. .TUESDAY NIGHT...Breezy. Mostly cloudy with a 40 percent chance of showers and a slight chance of thunderstorms. Lows in the upper 70s. .WEDNESDAY THROUGH THURSDAY NIGHT...Partly cloudy with a 20 percent chance of showers and thunderstorms. Highs in the upper 80s. Lows in the upper 70s. .FRIDAY THROUGH SATURDAY...Partly cloudy with a 20 percent chance of showers. Highs in the upper 80s. Lows in the upper 70s. $$