Official forecasts from the Hong Kong Observatory and other models indicate a high of 30–31°C for August 30 under a broad low-pressure trough over the northern South China Sea, driving unsettled conditions with frequent showers, thunderstorms, and high humidity of 80–95%. Light southwest winds and extensive cloud cover are expected to limit solar heating and cap daytime peaks near 30°C, consistent with the closely matched 37.5% market-implied odds for 29°C and 30°C. Minor model variations in shower timing or brief sunny intervals could push readings to 31°C (20.5% odds), while stronger convection would favor the lower end. Updated guidance ahead of the date will clarify steering patterns and rainfall intensity influencing the final maximum.