Current forecast models from sources including Météo-France and ECMWF consensus point to a September 29 high in Paris of 26–28°C, driven by a persistent southeasterly flow under weakening high pressure that advects warmer continental air while limiting Atlantic cooling. Mostly cloudy skies and moderate southerly winds around 10–15 km/h will moderate peak insolation and boundary-layer mixing, keeping the diurnal range narrow compared with clearer analogs. Ensemble spreads remain tight near the upper 20s, with minor differences in cloud timing or wind gusts able to shift the exact maximum by 1–2°C; historical September 29 averages near 19.5°C underscore the anomalous warmth. Trader consensus on 28°C and 29°C reflects this narrow uncertainty band ahead of final model runs.