Recent India Meteorological Department forecasts and station observations point to a maximum temperature of 40–41°C in Lucknow on May 18, driven by lingering western disturbances that have introduced cloud cover, light winds, and modest moisture, suppressing the strong daytime heating typical of pre-monsoon conditions over the Indo-Gangetic Plain. Climatological averages for mid-May place Lucknow highs near 41–43°C, yet recent days have run 2–4°C cooler than normal with no active heatwave signal. Model consensus from IMD and international guidance shows limited intensification potential through the weekend, keeping the distribution centered below the 43°C threshold. The market’s 75% implied probability for 42°C or below therefore aligns with this short-term synoptic setup, though any rapid clearing of skies or shift in steering flow could still push readings higher before the official maximum is recorded at the Chaudhary Charan Singh Airport station.