Official observations at Chongqing Jiangbei International Airport station, the market's resolution source, show the highest temperature peaked at 20°C mid-afternoon amid persistent overcast skies and light rain from a recent cold front, as confirmed by China Meteorological Administration data. Trader consensus implies a 99.9% probability for this outcome, backed by numerical weather prediction model agreement (e.g., ECMWF and GFS analogs) forecasting capped heating due to high cloud opacity reducing solar insolation by over 70%. April climatology at the station averages 23°C highs, but similar synoptic patterns historically limit peaks to 20°C on 15-20% of days. A realistic challenge would require abrupt clearing before sunset for a 1°C surge, though current satellite imagery and stability indices deem this improbable; final daily maximum posts this evening.