**Trader sentiment for the highest temperature in Jeddah on October 4 centers on 36°C (53% implied probability) and 37°C (27.5%), reflecting consensus forecasts of 35–37°C from multiple sources.** Clear skies and moderate southwest-to-west winds are expected to support peak daytime heating under typical early-October Red Sea coastal conditions, with lows near 29–30°C and negligible precipitation risk. Recent model runs from the Met Office, WeatherBug, and regional analyses show stable highs around 36°C, close to historical baselines for the period, with limited day-to-day variability and no incoming weather systems to alter the pattern. Minor forecast spreads account for the secondary probabilities on 35°C and 38°C, while lower outcomes remain improbable given the current thermal setup.