Recent forecasts from multiple meteorological models indicate a frontal system bringing widespread cloud cover, thunderstorms, and heavy precipitation to Ankara on September 28, which is expected to limit daytime solar heating and cap the maximum temperature near 16–17°C. Official guidance and ensemble runs show consensus around these values, with 15°C also plausible if convective activity intensifies or timing shifts. This setup contrasts with typical late-September climatology, where clearer conditions often support highs near 24°C, but the current pattern favors suppressed maxima. Trader sentiment, reflected in the 39% implied probability for 16°C and 22.5% for 17°C, aligns closely with this model agreement while acknowledging minor spread in resolution criteria for the daily high. Updated model runs and observational data from the Turkish Meteorological Service will provide the final calibration before market resolution.