Recent ensemble forecasts from global models show a narrow spread in Jeddah's June 15 maximum, with peak readings sensitive to the timing and strength of the Red Sea sea breeze that often caps afternoon highs near 36–37°C. Persistent clear skies and light northerly winds favor readings reaching 38°C or higher at the official station, while any earlier or stronger onshore flow could limit the peak to 36°C. Historical June climatology places the average daily high around 37°C, with model disagreement on boundary-layer mixing and urban heat retention creating the tight clustering of market-implied odds around these three outcomes. Updated runs and local observations tomorrow morning will likely resolve the uncertainty.