Recent forecasts from regional models indicate Shanghai's overnight minimum on August 11 will likely settle near 26–28°C amid persistent subtropical high pressure, elevated humidity, and light southerly flow that limits radiative cooling. Trader sentiment clusters tightly around these values because ensemble guidance shows only modest day-to-day variability, with small differences in cloud cover or timing of any showers determining whether the low reaches 27°C versus 26°C or 28°C. Historical August climatology supports lows averaging 25–27°C, while current patterns suppress stronger cooling, keeping probabilities for 25°C or below under 11%. Updated model runs and official advisories from the China Meteorological Administration remain the key near-term catalysts.