Real-time surface observations from Paris-area meteorological stations, aligned with GFS model consensus, established a daily maximum of 22°C under partly cloudy skies and light northeasterly flow on October 2. Afternoon readings peaked near this value with low humidity and negligible precipitation, consistent with the seasonal transition toward cooler autumn conditions and well below historical October extremes exceeding 28°C. Trader consensus at 100% implied probability for 22°C reflects this convergence of verified data rather than forecasts alone. Minor adjustments could arise only from final official post-processing by agencies such as Météo-France or station-specific siting differences, though current measurements show tight agreement.