Traders assign near-certain implied probability to 19°C as Ankara’s daily maximum on October 4, driven by official station observations confirming this peak under stable high-pressure conditions and typical early-autumn cooling. Regional forecast models from meteorological agencies converged on this value, consistent with historical October baselines of 18–20°C for the Anatolian plateau. Minor probability on adjacent bins reflects residual measurement uncertainty or micro-site variations, yet no significant warm-air advection or model divergence has emerged to challenge the outcome. Final verified data releases will lock in resolution without altering the current consensus.