**Forecast models from sources including Yr.no and multiple meteorological services indicate a peak temperature of 34–36°C for Jeddah on October 17, 2026, with afternoon highs near 35–36°C under mostly clear skies and light northwest winds.** Coastal sea-breeze effects from the Red Sea and moderate humidity (around 45–60%) typically moderate extremes in mid-October, consistent with climatological baselines of 33–35°C. Recent observations show stable high-pressure conditions with minimal cloud cover or precipitation risk, supporting the market's strong weighting toward 35°C (49.5%) and 36°C (30%). Short-range ensemble updates over the next 48 hours will refine the exact maximum, but current consensus favors these outcomes over outliers below 34°C or at 37°C or higher.