Model consensus from Météo-France and European ensembles positions the June 13 Paris maximum near 26–27 °C under building high pressure, mostly clear skies, and light winds that favor daytime heating without strong advection. This setup, following a period of variable early June conditions, has produced the current near-certain market-implied odds for 27 °C as the official high at the primary observing station. Real-time trader consensus reflects confidence in the forecast guidance and limited uncertainty in the final hours. A modest shift in observed peak could still occur if localized cloud cover develops or if the official reading at Paris-Montsouris deviates slightly from model output due to urban heat island effects or measurement timing.