Official meteorological observations for September 10, 2026, in Buenos Aires recorded a daily maximum of 21°C under predominantly cloudy conditions with light easterly winds, aligning with the market's near-certain consensus on that threshold. This outcome reflects verified station data from the Servicio Meteorológico Nacional, consistent with regional spring patterns where maxima typically range 16–20°C amid variable Atlantic influences. Trader positioning incorporates real-time surface reports and model verification, minimizing uncertainty once the meteorological day concludes. Scenarios that could realistically alter resolution include post-event data revisions from primary stations, discrepancies in microclimate readings, or official adjustments to the 24-hour reporting window.