Recent numerical weather prediction ensembles from the China Meteorological Administration and global models point to a daily maximum near 31°C in Chengdu on May 18, driving the tightly clustered market-implied odds around 30–32°C. These forecasts incorporate current atmospheric conditions, including regional pressure gradients and moisture levels that moderate daytime heating in the Sichuan Basin. Official resolution will rely on the highest recorded temperature at Chengdu Shuangliu International Airport, where small variations in cloud cover or wind patterns can shift the exact peak by 1–2°C. With leading outcomes separated by narrow margins, traders weigh model consensus against historical May variability, where highs typically range 26–32°C. Updated runs from these ensembles tomorrow morning represent the next key data point likely to influence positioning before resolution.