**Current meteorological forecasts position overnight lows near 29–31°C as the baseline for Jeddah on August 24, driven by the region's persistent warm, humid air mass advected from the Red Sea and Arabian interior.** High relative humidity (typically 50–60% at night) limits radiative cooling, producing a narrow diurnal temperature range and keeping minimums elevated compared with inland desert sites. August climatology shows average lows around 27–30°C, with recent model runs from sources such as the Saudi National Center for Meteorology and international ensembles indicating stable conditions and no significant cold-air intrusions or unusual cloud cover that would depress temperatures further. Market-implied probabilities favor outcomes at or above 30–33°C because traders appear to weight the strong historical precedent and current model consensus for continued warmth, while assigning low odds to rarer cooler scenarios (e.g., enhanced wind mixing or atypical advection) that would require substantial forecast shifts. Updated model guidance and official minimum-temperature observations will be the key near-term catalysts.