Recent forecasts from Météo-France and European models indicate a lingering high-pressure ridge over western Europe sustaining above-average warmth into early August 2026, following a late-July heat surge that delivered 35–36°C readings in the Paris basin. For August 4, ensemble guidance centers on a daytime maximum near 31–32°C under mostly clear skies, with modest afternoon mixing and light northerly flow limiting further intensification; however, slight variations in boundary-layer moisture or timing of any weakening high could shift the peak by 1–2°C. Market-implied odds clustered tightly around 31–33°C reflect this narrow forecast spread, typical for short-range temperature resolution where small-scale advection and urban heat-island effects introduce measurable uncertainty before official station readings finalize the outcome.