Current forecasts from multiple meteorological sources project Qingdao's overnight low on September 20 near 20–21°C under partly cloudy conditions with light variable winds shifting from south to north. This consensus stems from stable high-pressure influence and modest diurnal cooling typical for mid-September in the region, where historical minima average around 18°C. Trader odds clustering near 19–21°C reflect model agreement on these mild conditions, while the near-even split between 15°C-or-below and 25°C-or-higher bins highlights residual uncertainty from potential cloud-cover variations or localized wind shifts that could alter radiational cooling rates by 2–3°C. Updated model runs and official briefings in the next 24–48 hours will likely tighten these ranges as the date approaches.