Recent forecasts from multiple meteorological sources, including the National Center for Meteorology and international models, indicate Jeddah's August 27 high will likely reach 37–39°C under typical late-summer conditions of clear skies, light westerly winds, and elevated humidity from the adjacent Red Sea. Above-average temperatures of up to 2.5°C above the seasonal 38°C mean are driven by persistent high pressure and strong solar insolation, with minimal cloud cover or precipitation expected to moderate daytime peaks. Official resolution will depend on the precise maximum recorded at the primary station, where small differences in timing or local advection can separate 38°C from 39°C-plus outcomes amid closely matched trader probabilities.