Official Met Office guidance positions a maximum of 27–28°C as the most probable outcome for London on August 2, driven by building high pressure and advection of warmer air from the south under light winds. Ensemble models show limited spread around this range, consistent with the market’s heavy weighting toward 27°C (43.5%) and 26–28°C combined. Recent observations confirm the season’s prior peak reached only 26.6°C, while climatological averages for early August sit near 22–23°C; the current setup therefore represents a modest but notable positive anomaly. Any late-model shift in cloud cover or timing of Atlantic fronts could trim the peak by 1°C, keeping lower outcomes viable though less favored by current guidance.