Recent Met Office guidance and ensemble model runs point to a cooling trend after London's mid-July heatwave, with high pressure yielding clearer overnight skies that enhance radiative cooling and position the July 19 minimum near or below the 14°C forecast. Typical July climatological lows range 14–16°C, but reduced cloud cover and lighter winds compared with recent humid nights increase the chance of temperatures dipping toward 10–12°C, driving the 47% implied probability on 10°C or below. Trader consensus clusters around 11–14°C outcomes because forecast spreads remain modest yet favor the lower end of guidance, with resolution depending on the precise urban station reading and any last-minute model shifts before the 48-hour window closes.