Recent forecast models point to overnight lows of 26–27°C in Shanghai on August 10 under persistent overcast skies, heavy rainfall, and high humidity near 90%, consistent with China Meteorological Administration guidance and extended outlooks from AccuWeather. Summer high-pressure dominance and the urban heat-island effect suppress radiative cooling, while typical August climatology shows average minimums around 25–26°C with limited diurnal range during wet periods. No major cold-air intrusions or typhoon influences appear imminent in the next 48 hours, supporting the market-implied odds favoring 27°C at 54.5% and 26°C at 17%. Updated model runs ahead of resolution will refine these probabilities as precipitation timing and wind patterns become clearer.