**Forecast consensus from the UK Met Office and other models centers on a daytime maximum of 26°C in London today under high pressure, sunny intervals, and light northerly winds.** These conditions favor gradual warming without the stronger southerly flow or subsidence that could push readings into the upper 20s. Updated model runs in the past 48 hours have trimmed earlier projections of 30–31°C, tightening trader focus on 26°C (now at 62.5% implied probability) while leaving room for 25°C (26.5%) if marine air or cloud cover limits insolation. London’s urban heat island typically adds 1–2°C above rural baselines, but standardized observations at sites like Heathrow or St James’s Park keep the recorded high aligned with the broader forecast envelope. With the day already underway and minimal convective activity expected, further model updates or real-time observations are unlikely to shift probabilities dramatically before resolution.