Current forecasts for Beijing on October 9 point to daytime highs near 25–27°C under mostly sunny to partly cloudy conditions, with overnight lows likely ranging 11–17°C depending on wind patterns and cloud cover. Southerly flow and high pressure have maintained mild conditions through early October, but subtle model differences in nocturnal cooling rates and any late shift to northerly winds create uncertainty around the exact minimum. Historical October 9 lows average about 10.6°C, with rare drops below 5°C, while recent years often see 12–16°C. Traders appear split on whether radiative cooling under clearer skies pushes the low below typical values or if persistent warmth holds it near the upper end of the range, with new model runs and observations over the next 48 hours likely to refine the outlook.