**Current forecasts from the Hong Kong Observatory and other models point to a daily temperature range of roughly 27–31°C on September 1, with the overnight minimum shaped by persistent cloud cover, showers, and a low-pressure trough crossing the northern South China Sea.** A developing low near Hainan is expected to track east-northeast, sustaining moist, unstable conditions that limit nighttime radiative cooling and keep the minimum elevated relative to clearer-sky scenarios. Multiple model runs (including ECMWF AIFS and AI guidance) show broad agreement on this pattern through September 1, though exact timing and intensity of rain remain variable and can shift the low by 1–2°C. **Trader sentiment clusters tightly around 25–27°C because these values align with the consensus minimum under continued cloud and shower influence, while lower readings would require clearer skies or stronger northerly flow that models do not currently favor.** Historical early-September minima average near 24–26°C, but the active trough and high humidity (80–95%) support the slightly higher implied probabilities. Updated model runs and the next HKO briefing are the key near-term catalysts that could narrow or shift these closely matched odds.