Highest temperature in Wellington on June 24?

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Market context

The real-world event is the daily maximum temperature recorded at Wellington International Airport on 24 June 2026, measured in degrees Celsius and sourced from Wunderground. Current crowd-implied probability of 0% for any specific range suggests the market expects an outcome far outside the narrow bands being traded, or that the resolution criteria are misunderstood by participants.

Historical data frames this probability: June in Wellington typically sees average highs between 54°F and 57°F (12°C–14°C), with overcast conditions common [3]. However, MetService NZ recently confirmed Wellington already beat its record June maximum, reaching over 19°C on 1–2 June 2026 [5]. This anomaly indicates that extreme warmth is possible, making the 0% probability for standard ranges potentially premature if traders assume typical winter norms.

Traders should monitor daily forecasts from AccuWeather and BBC Weather for shifts toward warmer days, as Wellington’s June 2026 forecast shows highs ranging from 51°F to 61°F (11°C–16°C) [7]. Key catalysts include unexpected south-westerly wind lulls or cloud cover reductions, which could push temperatures above 15°C. BBC Weather currently predicts light rain and a gentle breeze for 24 June, with highs near 60°F (16°C) [2], suggesting the 0% probability may need reassessment if conditions deviate from the forecast.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Champions League Prediction triggers a quick verification flow that finishes in minutes.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.