Recent official forecasts from MetService indicate a maximum of 14°C for Wellington on June 13, with other models ranging 13–15°C amid variable northerly flow and partly cloudy conditions. Trader sentiment clusters on 14–15°C because short-range numerical weather prediction ensembles show narrow spread driven by uncertainty in daytime heating, cloud cover timing, and boundary-layer mixing over Cook Strait. In winter, southerly advection of cooler maritime air can cap highs near seasonal averages of 13°C, while clearer northerly regimes allow modest warming to 15–16°C through increased insolation. Upcoming model runs and MetService updates will likely resolve the tight probability split between these outcomes.