Recent short-range forecast models from agencies like the Hong Kong Observatory indicate overnight lows near 26°C for June 13, driven by typical early-summer subtropical conditions with moderate humidity, variable cloud cover, and light winds that limit radiative cooling. Historical June minimums average 26–27°C, while the 2026 seasonal outlook favors above-normal temperatures overall, though localized showers or increased moisture could nudge readings toward 25°C or lower. Key variables include diurnal temperature range influenced by urban heat effects, potential monsoon trough positioning, and model consensus on wind patterns or precipitation timing. Updated numerical weather prediction runs and official briefings in the next 24–48 hours will refine these probabilities amid inherent forecast uncertainty.