Persistent northerly winds advecting cooler maritime air from the Black Sea region, combined with widespread cloud cover and intermittent showers, are keeping Istanbul temperatures suppressed for October 16. Official forecasts from multiple models show overnight lows near 11–13°C and daytime maxima of 13–15°C under mostly overcast skies with light rain, limiting solar heating and radiative cooling. The closely matched market odds between sub-8°C and 17°C+ outcomes reflect model spread in wind strength and frontal timing, while mid-range probabilities capture the consensus for modest diurnal ranges typical of autumn northerly flow. Newer model runs and local observations will clarify whether winds ease enough for slight warming or strengthen to push minima lower.