Recent cold air advection across northern China has lowered overnight minima in Jinan, with official guidance pointing to a September 10 low near 14–18 °C under clearing skies and light northerly flow. Model consensus from sources such as the China Meteorological Administration and international ensembles shows limited spread around this range, consistent with early-September climatology where average lows sit near 17 °C. The tight market split between the 12 °C-or-below and 22 °C-or-higher bins reflects residual uncertainty in exact radiative cooling under variable cloud cover and wind speeds rather than any outlier signal. Forecasters expect minimal further adjustment before resolution, as high-pressure building should stabilize conditions overnight.