Recent short-range forecast models from agencies like the China Meteorological Administration indicate variable atmospheric conditions over Chengdu in the coming days, with a mix of cloud cover, humidity near 70-80%, and potential isolated thunderstorms moderating peak heating. These factors create tight clustering around 28–30°C highs, as daytime solar radiation and regional monsoon moisture balance against cooling from precipitation and reduced insolation. Subtle model differences in storm timing and boundary-layer mixing explain the narrow spread among leading outcomes, while historical June averages near 29°C provide a baseline tempered by current synoptic patterns. Updated runs ahead of June 20 will likely refine the precise maximum recorded at official stations.