FPMY50 PGUM 081209 CCA ZFPGUM Zone Forecast for Guam and the Northern Marianas...CORRECTED National Weather Service Tiyan GU 1009 PM ChST Wed Jul 8 2026 GUZ001-MPZ001>003-082115- Guam-Rota-Tinian-Saipan- 1009 PM ChST Wed Jul 8 2026 Corrected typo in Thursday forecast. ...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH FRIDAY AFTERNOON FOR NORTH, WEST, AND SOUTH FACING REEFS... ...HIGH SURF WARNING HAS BEEN REPLACED BY HIGH SURF ADVISORY... ...HIGH SURF ADVISORY IN EFFECT UNTIL 4 PM CHST THURSDAY FOR WEST AND SOUTH FACING REEFS... ...COASTAL FLOOD ADVISORY HAS EXPIRED... .TONIGHT...Mostly cloudy with scattered showers and isolated thunderstorms. South winds 10 to 15 mph in the evening becoming light and variable. Lows around 78. Chance of showers 40 percent. .THURSDAY...Mostly cloudy with scattered showers and isolated thunderstorms. Light and variable winds. Highs around 87. Chance of showers 30 percent. .THURSDAY NIGHT...Partly cloudy with isolated showers and thunderstorms. Light and variable winds becoming northeast around 10 mph after midnight. Lows around 78. Chance of showers 20 percent. .FRIDAY THROUGH SATURDAY...Partly cloudy with isolated showers. Northeast winds 10 to 15 mph. Highs around 88. Lows around 79. Chance of showers 20 percent. .SATURDAY NIGHT...Mostly cloudy with a 40 percent chance of showers and a slight chance of thunderstorms. Lows in the upper 70s. .SUNDAY THROUGH WEDNESDAY...Partly cloudy with a 30 percent chance of showers and a slight chance of thunderstorms. Highs in the upper 80s. Lows in the upper 70s. $$