Ongoing heatwave conditions across northern France, driven by a persistent high-pressure ridge and warm southerly flow, anchor trader sentiment around a 24°C overnight low for Paris on June 23, with that outcome at 31% implied probability. Clear skies and light winds expected through the period favor moderate radiative cooling after daytime highs near 37°C, yet model consensus from Météo-France and European ensembles shows limited spread in minimum temperatures clustered between 21–24°C. Recent observations confirm unusually mild nights during the June 19–21 period, with lows near 20–23°C, while uncertainty in cloud timing and boundary-layer mixing keeps probabilities for 21°C or below and 25°C+ closely matched. Updated short-range guidance and surface observations over the next 48 hours will likely tighten the distribution ahead of market resolution.