Recent Met Office guidance and ensemble models indicate a minimum temperature near 17–18°C for London on August 9 under building high pressure, producing clear or partly cloudy skies that allow moderate nocturnal radiative cooling while limiting Atlantic moisture influx. Daytime maxima near 28–31°C and light winds further support mild overnight lows, consistent with climatological August averages of 13–15°C but elevated by the current warm anomaly. Trader consensus clustering on 17°C reflects model agreement on these conditions, tempered by uncertainty in exact cloud cover and urban heat-island moderation that could shift the minimum by 1–2°C. Updated forecast runs and surface observations over the next 48 hours remain the key catalysts for any odds movement before resolution.