**Forecast models for Beijing on October 16, 2026, show a minimum temperature clustered near 13–15 °C under overcast skies and light northeasterly flow, following a warm, clear October 15 with highs near 26 °C.** This setup produces the tight clustering of market-implied probabilities around mid-range outcomes (14–16 °C at ~33.5 % each) while also supporting elevated odds on the extremes (7 °C or below and 17 °C or higher, both at 42.5 %). Cloud cover and increasing moisture ahead of a frontal system limit nocturnal radiative cooling, keeping the overnight low higher than the October climatological average of ~8.6 °C. Light winds promote mixing that further moderates the drop, but small shifts in cloud timing, precipitation onset, or cold-air advection can swing the minimum several degrees in either direction. Traders therefore price meaningful probability on both cooler-than-expected clearing and warmer, more persistently overcast scenarios, reflecting the inherent spread in short-range numerical weather prediction for a transitional autumn day.