Current forecasts from MetService New Zealand and global numerical weather prediction models indicate a daytime maximum of 14°C in Wellington on May 17, aligning closely with the market-implied probability exceeding 99 percent for that exact outcome. This positioning reflects typical mid-autumn conditions in the Southern Hemisphere, where moderate southerly winds, persistent high cloud cover, and limited solar heating suppress warming near the long-term May average high of 14°C. Official resolution depends on the highest recorded temperature at Wellington’s primary monitoring stations. A shift to clearer skies or stronger northerly flow could allow modest warming above 15°C, though ensemble consensus shows low probability of such deviations before the market closes.