Recent forecast models for Chongqing show overnight lows on October 9 likely ranging 18–21°C, with partly cloudy to overcast skies and a 20–50% chance of light rain or drizzle from easterly flow. This transitional autumn pattern features moderate humidity and light winds that limit nocturnal radiative cooling, keeping temperatures above typical early-October baselines near 17–19°C. Ensemble guidance diverges on exact minimums due to small shifts in cloud timing and any frontal passage, creating balanced market-implied odds between sub-15°C and 25°C+ outcomes. Traders monitor updated CMA and global model runs plus local observations for resolution signals.