Recent observational data and forecast model consensus from agencies monitoring Sichuan province indicate a daily maximum of 26°C in Chengdu on September 16, driven by partly cloudy conditions, light winds, and daytime heating under a weakening monsoon influence that allowed temperatures to peak in the mid-20s Celsius. Historical September baselines for the region average near 25°C, with current runs showing minimal deviation and low precipitation limiting cooling effects. This alignment underpins the market-implied odds near certainty for 26°C. Unlikely shifts could arise only from late-day measurement revisions or unforecasted cloud cover intensifying, though model agreement and real-time station readings make such outcomes improbable before resolution.