Recent forecasts from Météo-France and European models indicate a heatwave peaking over Paris on June 18–19, with daytime highs reaching 36–37°C under clear skies and strong solar heating. This pattern supports an overnight minimum near 23°C on the 19th, aligning with the market's leading 23°C outcome at 36.5% implied probability. Warmer advection from southern air masses and limited cloud cover or precipitation reduce cooling potential, keeping the lowest reading likely between 22–24°C. Model consensus shows modest spread, with any increase in nocturnal cloudiness or wind potentially lowering the minimum toward 21–22°C, while drier conditions could hold it at or above 24°C. Updated runs closer to the date will refine these thresholds ahead of resolution based on Paris-Le Bourget observations.