| NWS Forecast for: Guam Issued by: National Weather Service Tiyan, GU Last Update: 334 AM ChST Sat Sep 26 2026 | |
| Today: Partly cloudy in the morning then becoming partly sunny. Isolated showers, except scattered island effect showers for guam and saipan in the afternoon. Light and variable winds. Highs around 88. Chance of showers 30 percent for guam and saipan, 20 percent elsewhere. Tonight: Partly cloudy with isolated showers. Light and variable winds. Lows around 79. Chance of showers 20 percent. Sunday: Partly cloudy in the morning, then partly sunny in the afternoon. Isolated showers, except scattered island effect showers for guam and saipan in the afternoon. Light and variable winds. Highs around 88. Chance of showers 30 percent for guam and saipan, 20 percent elsewhere. Sunday Night And Monday: Partly cloudy with isolated showers, except partly sunny with scattered island effect showers for guam and saipan monday afternoon. Light and variable winds. Lows around 79. highs around 88. Chance of showers 30 percent for guam and saipan, 20 percent elsewhere. Monday Night Through Tuesday Night: Partly cloudy with a 20 percent chance of showers. Lows in the upper 70s. Highs in the upper 80s. Wednesday And Wednesday Night: Mostly cloudy with a 30 percent chance of showers and thunderstorms. Highs in the upper 80s. Lows in the upper 70s. Thursday Through Friday: Mostly cloudy with a chance of showers and a slight chance of thunderstorms. Highs in the mid 80s. Lows in the upper 70s. Chance of showers 40 percent. | |
| Zone Forecast: Guam | |
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