**Current forecasts from sources including the Shandong Meteorological Bureau and international models indicate a minimum temperature for Jinan on September 20 near 21–23°C under mostly cloudy skies, light northerly winds, and moderate humidity that limits nocturnal radiative cooling.** This setup favors the market's leading 19°C outcome at 55% implied probability, as traders incorporate slight downward revisions possible from urban measurement stations or localized variations in cloud cover. The notable 45% weighting on 12°C or below reflects hedging against model spread or unexpected frontal influences, though official guidance shows little support for such drops given the current warm advection pattern and absence of significant precipitation or strong cooling mechanisms. Upcoming evening observations and final daily minimum readings will resolve the market, with historical September baselines for the region typically ranging 16–20°C.