


Zone Forecast Product
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
573 FPMY50 PGUM 040524 ZFPGUM Zone Forecast for Guam and the Northern Marianas National Weather Service Tiyan GU 324 PM ChST Mon Aug 4 2025 GUZ001-042000- Guam- 324 PM ChST Mon Aug 4 2025 .TONIGHT...Partly cloudy with isolated showers becoming mostly cloudy with scattered showers during the evening. Isolated thunderstorms. East winds around 10 mph in the evening becoming light. Lows around 77. Chance of showers 30 percent. .TUESDAY AND TUESDAY NIGHT...Mostly cloudy with scattered showers and isolated thunderstorms. Light and variable winds. Highs around 86. Lows around 77. Chance of showers 30 percent. .WEDNESDAY...Partly sunny with scattered showers and isolated thunderstorms. Southeast winds 10 to 15 mph. Highs around 86. Chance of showers 30 percent. .WEDNESDAY NIGHT...Mostly cloudy with scattered showers and isolated thunderstorms. South winds around 10 mph in the evening becoming light. Lows around 77. Chance of showers 30 percent. .THURSDAY...Partly sunny with a 30 percent chance of showers and a slight chance of thunderstorms. Light and variable winds. Highs around 87. .THURSDAY NIGHT...Mostly cloudy with a 20 percent chance of showers and thunderstorms. Lows in the upper 70s. .FRIDAY THROUGH SATURDAY NIGHT...Partly cloudy with a 20 percent chance of showers. Highs in the upper 80s. Lows in the upper 70s. .SUNDAY THROUGH MONDAY...Partly cloudy with a 20 percent chance of showers and thunderstorms. Highs in the upper 80s. Lows in the upper 70s. $$ MPZ001>003-042000- Rota-Tinian-Saipan- 324 PM ChST Mon Aug 4 2025 .TONIGHT...Mostly cloudy with scattered showers and isolated thunderstorms. Southeast winds 10 to 15 mph. Lows around 79. Chance of showers 30 percent. .TUESDAY AND TUESDAY NIGHT...Mostly cloudy with scattered showers and isolated thunderstorms. East winds 10 to 15 mph. Highs around 85. Lows around 79. Chance of showers 30 percent. .WEDNESDAY AND WEDNESDAY NIGHT...Mostly cloudy. Scattered showers and isolated thunderstorms. South winds 10 to 15 mph. Highs around 85. Lows around 79. Chance of showers 30 percent. .THURSDAY...Partly sunny with a 30 percent chance of showers and a slight chance of thunderstorms. Light and variable winds. Highs around 86. .THURSDAY NIGHT...Mostly cloudy with a 30 percent chance of showers and a slight chance of thunderstorms. Lows in the upper 70s. .FRIDAY...Partly sunny with a 20 percent chance of showers and thunderstorms. Highs in the mid 80s. .FRIDAY NIGHT THROUGH SATURDAY NIGHT...Partly cloudy with a 20 percent chance of showers. Lows in the upper 70s. Highs in the mid 80s. .SUNDAY THROUGH MONDAY...Partly cloudy with a 20 percent chance of showers and thunderstorms. Highs in the upper 80s. Lows in the upper 70s. $$