FPMY50 PGUM 211749 ZFPGUM Zone Forecast for Guam and the Northern Marianas National Weather Service Tiyan GU 349 AM ChST Sun Mar 22 2026 GUZ001-MPZ001-220830- Guam-Rota- 349 AM ChST Sun Mar 22 2026 ...HIGH SURF ADVISORY IN EFFECT UNTIL 4 PM CHST THIS AFTERNOON ALONG NORTH FACING REEFS... ...HIGH RIP CURRENT RISK IN EFFECT THROUGH THIS AFTERNOON ALONG NORTH AND EAST FACING REEFS... .TODAY...Partly cloudy with isolated showers. Northeast winds 15 to 20 mph. Highs near 84. Chance of showers 20 percent. .TONIGHT...Partly cloudy with isolated light showers. Northeast winds 15 to 20 mph. Lows around 74. Chance of showers 10 percent. .MONDAY...Breezy. Partly sunny with scattered showers and isolated thunderstorms. Northeast winds 20 to 25 mph. Highs around 85. Chance of showers 40 percent. .MONDAY NIGHT...Mostly cloudy with scattered showers and isolated thunderstorms. East winds 15 to 20 mph. Lows around 75. Chance of showers 30 percent. .TUESDAY...Partly sunny with scattered showers. East winds 15 to 20 mph. Highs near 85. Chance of showers 30 percent. .TUESDAY NIGHT...Mostly cloudy with a 30 percent chance of showers. Lows in the mid 70s. .WEDNESDAY...Partly sunny with a 30 percent chance of showers and a slight chance of thunderstorms. Highs in the mid 80s. .WEDNESDAY NIGHT...Mostly cloudy with a 30 percent chance of showers. Lows in the mid 70s. .THURSDAY...Partly cloudy with a 20 percent chance of showers. Highs in the upper 80s. .THURSDAY NIGHT...Mostly cloudy with a 20 percent chance of showers. Lows in the mid 70s. .FRIDAY THROUGH SATURDAY...Partly cloudy with a 20 percent chance of showers. Highs in the mid 80s. Lows in the upper 70s. $$ MPZ002-003-220830- Tinian-Saipan- 349 AM ChST Sun Mar 22 2026 ...HIGH SURF ADVISORY IN EFFECT UNTIL 4 PM CHST THIS AFTERNOON ALONG NORTH FACING REEFS... ...HIGH RIP CURRENT RISK IN EFFECT THROUGH THIS AFTERNOON ALONG NORTH AND EAST FACING REEFS... .TODAY...Breezy. Partly cloudy with isolated showers. Northeast winds 20 to 25 mph. Highs near 84. Chance of showers 20 percent. .TONIGHT...Partly cloudy with isolated showers. Northeast winds 15 to 20 mph. Lows around 75. Chance of showers 20 percent. .MONDAY...Breezy. Partly cloudy with isolated showers. Northeast winds 20 to 25 mph. Highs near 84. Chance of showers 20 percent. .MONDAY NIGHT AND TUESDAY...Breezy. Mostly cloudy. Scattered showers. Northeast winds 20 to 25 mph. Lows around 76. Highs near 85. Chance of showers 30 percent. .TUESDAY NIGHT AND WEDNESDAY...Breezy. Mostly cloudy. A 30 percent chance of showers. Lows in the mid 70s. Highs in the mid 80s. .WEDNESDAY NIGHT THROUGH SATURDAY...Breezy. Partly cloudy with a 20 percent chance of showers. Lows in the upper 70s. Highs in the mid 80s. $$