Recent forecast consensus from the Met Office and ensemble models positions 14–15°C as the most probable maximum temperature for London on October 17, driven by a cold front clearing Friday that establishes northerly flow and mostly clear skies. This setup favors modest daytime heating under autumnal solar angles, with afternoon readings reaching the mid-teens Celsius after overnight lows near 7–8°C. Historical mid-October averages near 15–16°C provide context, though the current pattern reflects typical post-summer cooling without significant blocking or warm advection. Updated model runs through the weekend will refine exact peaks ahead of market resolution.