**Trader sentiment for the lowest temperature in Lucknow on September 1 reflects tight clustering around 25–27°C (combined ~87% probability) because official forecasts from the India Meteorological Department (IMD) and global models converge on a minimum near 26°C amid active monsoon conditions.** Persistent cloud cover, high humidity (often 85–95%), and scattered thundershowers limit nighttime radiative cooling, keeping overnight lows from dropping sharply. Recent IMD city forecasts list a 26°C minimum for September 1 under generally cloudy to overcast skies with spells of rain, while extended-range outlooks indicate near-normal minimum temperatures for early September. Slight model differences in rainfall timing, wind, and exact cloud thickness explain the near-even split among 25°C, 26°C, and 27°C outcomes. Heavier overnight rain or thicker cloud decks would favor the lower end by suppressing cooling, whereas any clearing could allow a dip toward 24°C or below—though current guidance shows low odds for that. Higher outcomes (28°C+) remain possible only if monsoon activity weakens more than expected. With resolution just days away, the next IMD updates and short-range model runs will likely tighten the distribution.