Recent numerical weather prediction models from agencies like the ECMWF and GFS indicate stable high-pressure conditions over the eastern Mediterranean, supporting daytime maxima near 30–32°C for Istanbul on July 22, with limited cloud cover and light northerly flow. These patterns align with July climatology, where average highs reach 29–31°C, though the Bosphorus sea breeze and urban heat island effects introduce 1–2°C variability in the daily peak. The closely bunched market odds around 28–29°C reflect this forecast consensus alongside modest uncertainty in exact resolution timing and microscale influences, while the 21.6% implied probability for 34°C or higher accounts for potential model underestimation of adiabatic warming or subsidence. Updated runs and local observations over the next 48 hours will refine these probabilities.