Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Legit?) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 102-103°F | 100% |
| 97°F or below | 0% |
| 98-99°F | 0% |
| 100-101°F | 0% |
| 104-105°F | 0% |
| 106-107°F | 0% |
| 108-109°F | 0% |
| 110-111°F | 0% |
| 112-113°F | 0% |
| 114-115°F | 0% |
| 116°F or higher | 0% |
Market context
The underlying real-world event is the highest temperature recorded at LaGuardia Airport on 2 July 2026, measured in degrees Fahrenheit. Polymarket prices this contract today at 75c for the YES outcome, despite the crowd-implied probability for the specific range being 0%, creating a sharp divergence between platform liquidity and resolution odds. Traders on Polygon are using USDC to back conditional tokens, betting that the on-chain settlement will reflect a temperature exceeding the current threshold before the 2026-07-02T12:00:00Z window closes.
Historical data frames how to interpret this 0% probability, as LaGuardia has seen extreme heat in recent decades. The all-time record for the station is 107°F, recorded on 3 July 1966, while 2 July 1966 saw a peak of 101°F[7]. Other records for 2 July include Newark Airport reaching 103°F in 1901, suggesting that temperatures above 90°F are plausible in early July[6]. The AccuWeather forecast for July 2026 at LaGuardia indicates daily highs ranging from 81°F to 99°F, making the current 0% probability for the higher range appear statistically conservative given the seasonal volatility[4].
Traders should monitor the National Weather Service climatological reports and real-time updates from Weather Underground, the official resolution source for this market[5]. A recent Yahoo News report highlights that dangerous, record-breaking heat is possible across New York and New Jersey, with specific warnings for early July peaks[6]. The dependency is the publication of the first data point for 2 July on the Wunderground platform; until this occurs, the market cannot resolve, and any sudden shifts in forecast models could drastically alter the conditional token pricing on-chain.
Methodology
This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Polymarket Legit?, which mirrors the Polymarket order book directly.
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?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Polymarket Legit?. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- Is this market available outside the US?
- Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
- 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.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Polymarket Legit? trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
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