Highest temperature in Wellington on June 24?

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Market context

The underlying event is the highest temperature recorded at Wellington International Airport on 24 June 2026, a date that falls in New Zealand’s winter. Current crowd-implied probability for any specific temperature range is 0% YES, suggesting the market expects an outcome that may be outside typical resolution brackets or that liquidity is absent. This zero probability diverges sharply from historical patterns, where June highs at this airport typically range between 12°C and 17°C, with average daily highs decreasing from 57°F to 54°F (14°C to 12°C) throughout the month[2].

Historical precedents frame this probability as anomalous. While June is generally cool, MetService NZ recently confirmed Wellington has already beaten its maximum June temperature record, with over 19°C recorded on 1–2 June 2026[4]. This indicates a warmer-than-average winter start, contradicting the market’s 0% implication. Comparable cases, such as the 21.7°C peak at Cheviot on 1 June 2024, show that extreme June warmth is possible in New Zealand, even if rare at coastal airports like Wellington[6].

Traders should monitor real-time weather updates from Wunderground and MetService NZ, particularly any announcements regarding unseasonal heatwaves or atmospheric anomalies. The settlement window ends 2026-06-24T12:00:00Z, so temperature data for the full day must be verified before resolution. Recent news from MetService highlights record-breaking conditions, suggesting that analyst consensus may underestimate the likelihood of higher-than-average temperatures in Wellington this June[4]. Divergence between sportsbook lines (if available) and this prediction market’s 0% probability warrants close scrutiny, as it may reflect a liquidity gap rather than a true 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

Where can I trade this market with the lowest fees?

On Best Prediction Markets UK, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Best Prediction Markets UK is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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.

What does it cost to trade on Best Prediction Markets UK?

Zero. Best Prediction Markets UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.