Recent model consensus from Météo-France and ECMWF indicates Paris will transition out of a mid-August heatwave, with high pressure yielding to increased cloud cover and scattered showers that moderate afternoon heating on August 16. This supports peak temperatures clustering near 29–30°C at official stations, as reduced insolation and boundary-layer moisture limit further warming compared to the 37–39°C readings earlier in the week. Ensemble spreads arise mainly from variable timing of frontal passage and urban heat-island amplification, which can add 1–2°C locally. Traders assign the highest implied probabilities to 29°C and 30°C because these align with the narrow range of verified guidance, while lower odds for 28°C or 31°C reflect the remaining uncertainty ahead of final 24–48-hour forecast updates.