FPMY50 PGUM 120503 ZFPGUM Zone Forecast for Guam and the Northern Marianas National Weather Service Tiyan GU 303 PM ChST Fri Dec 12 2025 GUZ001-MPZ001-122000- Guam-Rota- 303 PM ChST Fri Dec 12 2025 .TONIGHT...Partly cloudy with isolated showers. Northeast winds 10 to 15 mph. Lows around 77. Chance of showers 20 percent. .SATURDAY...Partly cloudy with isolated showers. East winds 15 to 20 mph. Highs around 86. Chance of showers 20 percent. .SATURDAY NIGHT...Partly cloudy with isolated showers. East winds 15 to 20 mph. Lows around 77. Chance of showers 20 percent. .SUNDAY THROUGH MONDAY...Partly cloudy with isolated showers. East winds 15 to 20 mph. Highs around 87. Lows around 77. Chance of showers 20 percent. .MONDAY NIGHT...Mostly cloudy with a 20 percent chance of showers. Lows in the upper 70s. .TUESDAY THROUGH FRIDAY...Partly cloudy with a 20 percent chance of showers. Highs in the upper 80s. Lows in the upper 70s. $$ MPZ002-003-122000- Tinian-Saipan- 303 PM ChST Fri Dec 12 2025 ...SURF IS EXPECTED TO APPROACH HAZARDOUS LEVELS ALONG NORTH FACING REEFS OVER THE WEEKEND... ...THE RISK OF RIP CURRENTS IS EXPECTED TO APPROACH HIGH ALONG NORTH AND EAST FACING REEFS FOR THE WEEKEND... .TONIGHT...Partly cloudy with isolated showers. East winds 15 to 20 mph. Lows around 79. Chance of showers 20 percent. .SATURDAY...Partly sunny with isolated showers. East winds 15 to 20 mph. Highs around 86. Chance of showers 20 percent. .SATURDAY NIGHT AND SUNDAY...Breezy. Mostly cloudy with isolated showers. East winds 15 to 25 mph. Highs around 86. Lows around 79. Chance of showers 20 percent. .SUNDAY NIGHT AND MONDAY...Partly cloudy with isolated showers. East winds 15 to 20 mph. Lows around 79. Highs around 86. Chance of showers 20 percent. .MONDAY NIGHT THROUGH WEDNESDAY...Partly cloudy with a 20 percent chance of showers. Lows in the upper 70s. Highs in the upper 80s. .WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of showers. Lows in the upper 70s. .THURSDAY THROUGH FRIDAY...Partly cloudy with a 20 percent chance of showers. Highs in the upper 80s. Lows in the upper 70s. $$