Recent forecasts from multiple models indicate Istanbul's minimum temperature on August 29 will likely fall between 19–21°C, driven by northerly winds advecting cooler maritime air and scattered showers that enhance nocturnal cooling through evaporation and cloud cover. This follows a brief cool-down from late-August highs near 29–30°C, with surface pressure patterns favoring modest diurnal ranges. Uncertainty in exact minimums arises from model differences in boundary-layer mixing and precipitation timing, supporting closely matched market probabilities across 18–23°C outcomes while keeping extremes (below 17°C or 25°C+) at low implied odds. Updated runs from agencies like the Met Office and local meteorological services over the next 48 hours will refine these projections ahead of market resolution.