Official forecasts from the Hong Kong Observatory and aligned models project a daily minimum near 28°C for August 17 under persistent summer conditions of high humidity, light winds, and scattered showers with thunderstorms. Cloud cover and moisture limit nocturnal radiative cooling, holding overnight lows at or slightly above the seasonal average of 26–27°C while suppressing extremes. Recent guidance shows no significant tropical systems or frontal passages altering this pattern, keeping the implied probability concentrated on 28°C. Resolution depends on the official headquarters station reading, with any late-day rain timing or urban heat retention as key variables that could shift the outcome by 1°C.