**Current forecasts and real-time conditions strongly support trader consensus around 31°C as the lowest temperature in Jeddah on August 25, 2026.** Multiple official and model-based sources, including WeatherBug, Met Office, and local monitoring stations, project overnight lows near 30–31°C under typical late-summer conditions of clear to partly cloudy skies, light winds, and high humidity (around 50–70%). Historical August climatology for Jeddah shows average daily minima of 27–30°C, with 2026 observations through late August consistently recording overnight values in the 28–31°C range and no significant cooling events. This positioning reflects the wisdom of crowds in prediction markets, where traders with financial stakes integrate short-range model consensus (minimal diurnal variation in the Red Sea coastal zone) and current observations from stations like King Abdulaziz International Airport. The market-implied probability above 95% for 31°C aligns with the narrow expected range of 29–32°C, where deviations are rare absent major atmospheric shifts. Realistic challenges include an unforecasted marine layer or brief shower increasing cloud cover and dropping the minimum by 1–2°C, or minor station-specific measurement differences. However, the arid subtropical climate and dry August pattern (near-zero precipitation) make such cooling unlikely before resolution. Updated model runs or final official data releases remain the key near-term variables for any adjustment.