Forecast models from agencies including the Met Office, ECMWF, and GFS ensembles converge on a Jeddah maximum of 36–38°C for June 16, 2026, placing the 37°C outcome at near-certainty in trader pricing. This aligns with June climatology for the Red Sea coast, where average highs reach 36–37°C amid persistent northwesterly flow, elevated humidity, and minimal cloud cover that caps extreme surface heating. Official observations through midday confirm readings climbing steadily toward this range without signs of intensification. Minor model spread in boundary-layer moisture or local advection could still produce a 1–2°C deviation, though such shifts remain low-probability given stable synoptic conditions and the absence of disruptive weather features.