A strong heat dome and associated high-pressure system over western Europe has driven recent model consensus toward a peak temperature of 40–41°C in Paris on June 24, with ensemble guidance from ECMWF and GFS showing 10–15°C anomalies above the late-June climatological mean of roughly 23–25°C. Météo-France and BBC forecasts currently align on 40–41°C under mostly clear skies and light easterly flow that limits mixing and nocturnal cooling, though modest spread in boundary-layer moisture and exact timing of peak insolation keeps probabilities distributed across 38–42°C. Urban heat-island amplification in central Paris adds 1–2°C locally, while any slight westward shift in the ridge or increased cloud cover could trim the high by 2–3°C. Updated model runs and official Météo-France briefings over the next 48 hours remain the key variables that could shift the market-implied distribution.