Recent forecasts from models and agencies like those aggregated on timeanddate and Weather Network indicate Shanghai's overnight low on August 4 will likely settle near 27–28°C amid a lingering summer heatwave, with daytime highs near 35°C and minimal cooling from high humidity and light easterly winds. This aligns with the market's leading 27°C outcome at 50% implied probability, as warm advection from the subtropical high and urban heat retention suppress radiative cooling typical for early August climatology (average lows ~25–26°C). No incoming cold fronts, typhoon influences, or significant precipitation shifts appear in the latest runs to drive temperatures lower, supporting the tight clustering around 26–28°C. Updated model guidance over the next 48 hours will refine these odds ahead of resolution.