Jinan’s August climate features average daily highs of 30–32°C driven by the East Asian monsoon, with frequent peaks above 35°C and occasional extremes near 40°C according to long-term records and 2026 early-month observations from Shandong meteorological authorities. Ongoing high-temperature warnings for northern Jinan areas, with maxima forecast in the mid-to-upper 30s, underpin the market’s 99.3% implied probability for a daily high of 26°C or above on August 9. This near-certainty reflects both climatological baselines and current synoptic patterns favoring sustained warmth. A realistic shift below this threshold would require an atypical, strong cold-air intrusion or major precipitation event capable of suppressing daytime heating—developments not indicated in current model guidance but possible if steering patterns change rapidly ahead of the date.