Recent forecasts from multiple meteorological models align with Istanbul's late-August climatology, where average daily highs typically reach 27–30°C under the moderating influence of Bosphorus sea breezes and moderate humidity levels. This positions 28°C as the market frontrunner at 53.5% implied probability, as stable warm-air advection without strong southerly flow or clear-sky intensification limits upside potential to 30°C or above. Recent observations and extended-range guidance show no significant deviations from baseline patterns, with partly cloudy conditions and light northerly winds expected to cap peaks near the lower end of the seasonal range. Traders weigh these factors against minor model spread that could still shift outcomes toward 27°C or 29°C depending on final diurnal heating and wind patterns.