Recent model consensus from GFS and other global forecasts supports a daytime maximum near 24°C in Paris on October 15, driven by southerly flow advecting milder air under high pressure with partly cloudy skies that permit solar heating without significant cloud cover or precipitation. This setup aligns with the market's leading 24°C outcome at 48% implied probability, while the 23°C and 25°C shares reflect minor ensemble spread in peak timing and boundary-layer mixing. Above-normal warmth relative to October climatology stems from the absence of northerly intrusions or frontal passages, with official guidance indicating light southerly winds and minimal diurnal cooling overnight. Traders monitor final model updates and real-time observations for any late adjustments before resolution.