Forecast models from agencies including MetService and international runs such as GFS show a mild spring day in Wellington driven by northerly to northwesterly flow, with afternoon temperatures most likely peaking at 16–17 °C under overcast skies and light drizzle risk. Historical October averages near 16 °C provide context, while the current setup favors the upper end of that range without strong warming aloft or clear breaks that would push readings to 19 °C or higher. Market-implied odds align closely with this consensus, assigning the heaviest weight to 17–18 °C outcomes and minimal probability to extremes, reflecting traders’ assessment of limited upside potential before official observations finalize the daily maximum.