**Trader sentiment for Lucknow's September 10 lowest temperature centers on the narrow contest between 27°C (54.5% implied probability) and 26°C (46.5%), with lower outcomes discounted due to persistent monsoon moisture and cloud cover limiting overnight radiative cooling.** Official IMD data and forecasts show a minimum near 26–27°C, consistent with high humidity (often 80–90%), partly cloudy to overcast skies, and scattered thundershower activity that traps heat near the surface. These conditions, typical for mid-September in the Indo-Gangetic plain, produce elevated overnight lows compared to drier periods. Recent observations and model guidance indicate the temperature bottomed around 26.6°C at key stations like Lucknow Airport, with hourly readings hovering in the 27–28°C range through the night before rising. The close split between 26°C and 27°C reflects genuine uncertainty in final official recording thresholds, slight model variations in cloud/rain timing, and the exact timing of the daily minimum. Historical September baselines and current steering patterns support this range, with no strong signals for a sharper drop. Upcoming IMD updates or final daily summaries will likely resolve the market as traders weigh the last observational data against forecast consensus.