**Short-range forecast models from sources including ECMWF and GFS project a daily minimum temperature near 28–30°C for Jeddah on August 23, 2026, consistent with recent observations and late-summer climatology.** Jeddah’s Red Sea coastal location and urban heat retention typically keep overnight lows above 27°C in August, with 2026 data showing minima clustered around 28–30°C amid above-normal daytime heat and minimal cloud cover or precipitation. No synoptic systems or cooling advection are expected in the 48-hour window, limiting downside risk, though model spread and measurement precision at official stations introduce modest uncertainty reflected in the market-implied probabilities. Updated guidance ahead of resolution will likely anchor sentiment.