**Official IMD forecasts for Lucknow on September 28 point to a minimum temperature near 22°C under generally cloudy skies turning partly cloudy, with isolated light rain or drizzle possible.** Recent heavy monsoon rainfall has left high soil moisture and humidity (often 90%+ overnight), which limits nocturnal radiative cooling and supports this range, while a weakening low-pressure system and gradual monsoon withdrawal reduce intense cloud cover that could otherwise suppress temperatures further. Model consensus and historical late-September baselines align with minima around 21–23°C absent major shifts in steering winds or sudden clearing. Trader-implied odds near 48% for 17°C or below versus 47% for exactly 22°C reflect uncertainty over how quickly skies clear and any last-minute forecast revisions, with resolution hinging on the official 0830 IST observation.