Current operational forecasts from Météo-France indicate largely sunny, warm conditions across northern France on June 15, with afternoon maxima expected near 28°C in the Paris region amid light southeasterly flow and minimal cloud cover. This positions the 28°C and 29°C outcomes as the market leaders, with their combined 87.5% implied probability reflecting tight clustering in numerical weather models around that narrow range. Above-average warmth relative to June climatological baselines of 22–24°C stems from established high pressure and limited Atlantic influence, though typical 1–2°C forecast uncertainty at 24-hour lead times—driven by precise timing of peak heating or minor boundary-layer variations—keeps slight probability on adjacent bins. Updated model runs and official briefings tomorrow morning represent the key data points that could shift trader sentiment before resolution.