Trader sentiment for Jinan's September 13 minimum temperature remains evenly split, with market-implied odds reflecting substantial uncertainty in the overnight low. Recent global and regional forecast models, including those aligned with China Meteorological Administration guidance, indicate a diurnal range with daytime highs near 30–32°C under partly cloudy skies and light southwesterly winds, but nighttime radiative cooling could yield a minimum between 17–21°C depending on cloud cover persistence, dew point depression, and exact timing of the daily low. Ensemble spreads in temperature guidance create ambiguity around official station measurements, which resolve based on precise 24-hour minima rather than model consensus, keeping probabilities on sub-12°C or 22°C-plus outcomes near parity while specific mid-range buckets trade near 45–50%. Upcoming hourly observations will clarify steering patterns and boundary layer stability influencing the final recorded value.