**Forecast models from sources including MetService-aligned data and international ensembles show a strong southerly airstream arriving overnight on October 15–16, with sustained winds of 15–20 m/s and widespread rain or showers suppressing daytime recovery.** This setup favors minimum temperatures clustering near 8°C, aligning with the market’s leading 61.5% implied probability for that exact outcome. Hourly guidance from Yr and similar services projects readings dipping to 8–9°C in the early morning before stabilizing around 9–10°C, while a few runs allow brief dips toward 7°C if cloud breaks occur. The 23.5% odds on 9°C reflect residual uncertainty in exact wind timing and boundary-layer mixing, but current consensus keeps cooler outcomes (≤7°C) at lower probabilities given the maritime moderation and persistent cloud. Updated model runs tonight will refine the precise minimum before resolution.