Recent forecasts for Chengdu on August 28 indicate a daytime high near 31–34 °C under partly cloudy skies with a high probability of thunderstorms, consistent with the tightly clustered market probabilities around 33 °C and 35 °C or higher. The Sichuan Basin’s enclosed topography limits ventilation and traps heat and moisture, while high humidity and urban heat-island effects sustain elevated temperatures even as scattered convection develops. Increasing rain chances over the next 48 hours, driven by monsoon influences, introduce variability in peak readings depending on cloud cover timing and storm intensity; official guidance from Chinese meteorological agencies and ensemble models currently favors values in the low-to-mid 30s °C range, with limited upside risk of exceeding 35 °C.