**Trader sentiment for the lowest temperature in Wellington on August 28, 2026, remains evenly balanced across temperature bins because short-range forecast guidance clusters near typical late-winter values with modest spread.** Official and model outputs from MetService, Met Office, and ensemble sources indicate overnight lows most likely between 9–12 °C, driven by a mix of southerly flow, variable cloud cover, and light shower activity that limits clear-sky radiative cooling. Recent days have featured above-average daytime maxima (up to 17 °C) but cooler nights under clearer skies earlier in the month, establishing a baseline climatology where August minimums average near 8–10 °C. Key differentiating factors include the strength and timing of any southerly change, which can drop readings by 1–3 °C through advection, versus persistent northerly winds or increased cloud that retain warmth. With resolution only 48 hours away, small shifts in the next model runs or observed wind direction will determine whether the low settles below or above the central bins, sustaining the current 50 % market-implied odds across thresholds.