Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Sport Prediction) Pick polygram.ink (preferred broker) |
40% | 60% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
40% | 60% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 70-71°F | 40% |
| 68-69°F | 29% |
| 66-67°F | 18% |
| 72-73°F | 11% |
| 65°F or below | 3% |
| 74-75°F | 3% |
| 76-77°F | 0% |
| 78-79°F | 0% |
| 80-81°F | 0% |
| 82-83°F | 0% |
| 84°F or higher | 0% |
Market context
The real-world event centres on whether LaGuardia Airport will record a July 7, 2026 high temperature exceeding the threshold that triggers a YES outcome in this prediction market, currently priced at a 4% crowd-implied probability. Historical data shows LaGuardia has experienced extreme heat, with its all-time peak of 107°F recorded on July 3, 1966, and a recent record-breaking midnight temperature of 94°F on July 4, 2026, during an East Coast heatwave[1][8]. However, July 7 forecasts for 2026 indicate daily highs ranging between 81°F and 99°F, suggesting the current 4% probability may reflect a cautious assessment that the extreme conditions of early July will not persist to the 7th[2].
Traders should monitor daily weather announcements from the National Weather Service and real-time updates from Wunderground, as the settlement relies exclusively on the highest temperature recorded at LaGuardia for all times on July 7[4]. The primary catalyst is the potential for a sudden heat spike, given the region’s recent volatility, but forecast models currently project overnight lows between 68°F and 83°F, which may limit daytime highs[2]. Any unexpected shift in atmospheric pressure or cloud cover could alter the outcome, so continuous tracking of the Wunderground history page for KLGA is essential before the settlement window closes[6].
Methodology
Sports-specific comparison page for Highest temperature in NYC on July 7?. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi or Manifold.
Resolution & payout
Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.
FAQ
- Are prediction markets better than sports betting?
- Prediction markets tend toward tighter odds than bookmakers because they use peer-to-peer exchange rather than bookmaker margin. On major matches, Polymarket quotes typically sit 2-5% closer to the true probability model than bet365 or DraftKings.
- Can I bet on individual matches?
- Yes, Polymarket lists every major Premier League / Champions League / World Cup match as its own market. Liquidity varies — top matches like El Clásico or a semi-final often have six-figure pools, lower-league games closer to three-figure.
- Which sports markets are available?
- Football (soccer) dominates — Champions League, World Cup, Premier League, La Liga, Bundesliga — followed by NFL, NBA, tennis Grand Slams, Formula 1, boxing/MMA. Resolution via official league source confirmation.
- How fast do sports winnings settle?
- Once the official league outcome is logged in the UMA Oracle (typically 1-2 hours after the final whistle), Polymarket's smart contract triggers USDC payout. To your wallet within minutes.
- Can I import form data and lineups?
- This page shows the live Polymarket quote as an implied probability. Form data and lineups must be researched separately via sports data providers (e.g. Soccerway, ESPN, FBref) — we surface the market probability, not the sport analysis.
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