Recent forecasts for Jeddah indicate peak temperatures on August 29 likely ranging from 37–40°C, with model consensus split between highs near 37°C and potential spikes above 38°C driven by light westerly winds, clear skies, and high humidity levels around 45–55% that limit nocturnal cooling. This range aligns with typical late-August conditions along the Red Sea coast, where daytime heating under subtropical high pressure often produces maxima near the monthly average of 37–38°C, though slight shifts in steering patterns or dew points can push readings higher. The closely matched market-implied odds for 38°C versus 39°C or above reflect genuine uncertainty in short-range ensemble predictions and the distinction between official station measurements versus localized extremes. Updated model runs from agencies like the National Centers for Environmental Prediction over the next 48 hours will likely clarify whether conditions trend toward the upper or lower end of this narrow band.