Current numerical weather prediction models from sources like the BBC and regional analyses point to a maximum temperature in Chengdu on June 13 most likely in the 31–33°C range, with close market probabilities reflecting residual uncertainty in short-range forecasts. In the humid subtropical climate of the Sichuan Basin, daytime highs depend on solar insolation under partly cloudy skies, limited by high humidity, potential scattered showers, and orographic effects that moderate heat buildup. Recent model consensus shows stable southwesterly flow without strong subsidence or clear-sky amplification that could push readings to 34°C or above, while typical early-June baselines hover near 30°C. Differentiation between 31°C, 32°C, and 33°C hinges on minor variations in cloud timing, boundary-layer mixing, and any late-day convection, which updated runs over the next 48 hours will clarify ahead of market resolution.