Recent Météo-France and ensemble guidance for Paris on July 24 point to mostly clear skies under a building ridge, supporting daytime maxima near 28–30 °C, with model spreads and slight timing differences in the thermal trough producing the tight clustering of market probabilities around 27–29 °C. Afternoon wind speeds, boundary-layer mixing, and any residual low-level moisture will determine whether readings settle at the lower or upper end of that range, while historical July variability (typical highs 24–28 °C) underscores why traders assign only modest weight to outcomes above 30 °C or below 26 °C at this lead time. Updated model runs and official bulletins through July 23 remain the key catalysts likely to shift implied probabilities.