Recent Met Office forecasts and ensemble model runs point to peak temperatures of 31–32 °C in London on August 9 under a settled high-pressure regime with ample sunshine and light winds, supporting the market’s close clustering around those outcomes. Minor differences among 30–32 °C probabilities reflect lingering uncertainty in afternoon cloud development, urban heat-island amplification at official sites, and small variations in steering flow that could allow a modest sea-breeze cooling effect or extra insolation. Historical August baselines near 23 °C underscore the anomalous warmth, while the absence of significant Atlantic fronts keeps resolution thresholds tightly bunched until the final model updates and observational data arrive.