


Zone Forecast Product
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
798 FPMY50 PGUM 291758 ZFPGUM Zone Forecast for Guam and the Northern Marianas National Weather Service Tiyan GU 358 AM ChST Wed Jul 30 2025 GUZ001-MPZ001>003-300800- Guam-Rota-Tinian-Saipan- 358 AM ChST Wed Jul 30 2025 ...HIGH SURF ADVISORY IS CANCELLED FOR WEST AND NORTH FACING REEFS... ...HIGH RISK OF RIP CURRENTS NO LONGER EXPECTED ALONG WEST AND NORTH FACING REEFS... .TODAY...Mostly cloudy with isolated showers. Light and variable winds, becoming south 5 to 10 mph in the afternoon. Highs near 87. Chance of showers 20 percent. .TONIGHT...Mostly cloudy with scattered showers. Light and variable winds. Lows around 78. Chance of showers 30 percent. .THURSDAY...Partly sunny with isolated showers in the morning with scattered island showers in the afternoon. Light and variable winds. Highs around 87. Chance of showers 30 percent. .THURSDAY NIGHT...Partly cloudy with isolated showers. Light and variable winds. Lows around 79. Chance of showers 20 percent. .FRIDAY...Partly sunny with scattered showers. Light and variable winds. Highs around 87. Chance of showers 30 percent. .FRIDAY NIGHT THROUGH TUESDAY...Mostly cloudy with a 30 percent chance of showers and a slight chance of thunderstorms. Lows in the upper 70s. Highs in the upper 80s. $$