Trader consensus strongly favors 11°C as Milan's lowest temperature on October 13, reflecting 95% implied probability driven by consistent numerical weather prediction outputs. Mid-October climatology for the Po Valley typically features overnight lows of 10–13°C under autumnal radiative cooling, with current high-pressure dominance and light easterly flow suppressing further drops. Forecast guidance shows minima stabilizing near 11–13°C through the night, aligning with historical baselines and recent model runs. Resolution hinges on official station readings, where small discrepancies from urban heat islands or measurement timing could alter the exact value, though significant deviations below 10°C appear unlikely without an unexpected frontal passage.