Recent forecasts from the Hong Kong Observatory and global models indicate overnight lows of 26–27°C for September 6 under mostly cloudy skies with scattered showers and light variable winds. These conditions limit radiative cooling overnight while daytime highs near 31°C keep the diurnal range narrow. The broader pattern features a weakening tropical influence after recent systems and a delayed northeast monsoon arrival later in the week, maintaining typical early-September warmth without significant advection of cooler air. Market-implied probabilities favor 27°C and 26°C as the leading outcomes because ensemble guidance clusters tightly in this range, with only modest uncertainty from localized shower timing or wind shifts that could nudge the minimum slightly lower. Updated model runs and the next official nine-day outlook will provide the primary near-term signals for any revisions.