Traders assign near-certainty to a daily maximum of 26 °C or higher in Jinan on August 23 because official forecasts and real-time observations show afternoon highs reaching 34–38 °C under typical late-summer conditions. Persistent high pressure and southerly flow have maintained temperatures well above seasonal normals, with morning readings already climbing through the upper 20s °C. Historical climatology places August maxima around 30–32 °C on average, making sub-26 °C outcomes statistically rare absent an unseasonal cold front. Minor forecast adjustments or localized showers could shave a degree or two but remain far short of the threshold needed to alter market resolution.