Recent forecast model runs from the Met Office and European ensembles indicate mild overnight conditions for London on October 13, with minimum temperatures likely centering near 14°C due to persistent southwesterly flow and limited radiational cooling under variable cloud. Historical climatology places the average low at 9°C, but current Atlantic-driven warmth has elevated baselines, supporting the market's leading 46% implied probability on 14°C while spreading residual odds across 12–16°C amid typical 2–3°C ensemble spread. Key variables include timing of any clearing skies or wind shifts that could allow sharper drops, with updated guidance expected from the next high-resolution model cycles. Traders appear to weigh these near-term dynamical factors heavily against long-term October norms.