Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via World Cup 2026 Favorites) 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 |
|---|---|
| 96-97°F | 100% |
| 87°F or below | 0% |
| 88-89°F | 0% |
| 90-91°F | 0% |
| 92-93°F | 0% |
| 94-95°F | 0% |
| 98-99°F | 0% |
| 100-101°F | 0% |
| 102-103°F | 0% |
| 104-105°F | 0% |
| 106°F or higher | 0% |
Market context
Houston’s high temperature on 3 August will be determined by the top reading at William P. Hobby Airport, so the market is really about whether the city gets an ordinary August heat peak, a muted day, or a late-day spike from sun and subsidence. Recent Houston forecasts leaned hot: one local forecast called for another sunny, hot day with highs around 100°F, while another placed the day’s range roughly between 78°F and 99°F and kept precipitation chances low.[7][6]
The historical frame points towards a warm upper-90s outcome being more typical than a truly cool reading. August averages for Houston sit in the high 80s to around 90°F, and several recent daily outlooks have clustered highs in the mid- to upper-90s, with triple-digit readings appearing when sunshine dominates and storm coverage stays limited.[15][16][17] By contrast, the market’s current 0% yes price suggests traders are not yet seeing a clean route to an extreme heat outcome, likely because nearby showers and isolated storms have repeatedly shown up in the forecast discussion.[1][7][18]
What matters most now is the evolution of afternoon convection, cloud cover and any late changes to the temperature profile at Hobby. Local forecasts have highlighted a chance of isolated showers or storms along and south of I-10, while other updates have kept the broader area sunny and dry enough for highs near 100°F.[7][18] The resolution depends on the single highest observed temperature on the day, so even a short-lived late-afternoon surge can matter if the airport stays mostly clear through the heating window.[3]
Methodology
Football-specific comparison page for Highest temperature in Houston on August 3?. 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 (US-focused) or Manifold (play-money).
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.
- When do sports markets resolve?
- Typically within hours of the official final whistle. Polymarket uses UMA Optimistic Oracle with source URLs pointing at official league data feeds — e.g. the Premier League for EPL markets, UEFA for Champions League, FIFA for World Cup.
- 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.
- What's the difference between match odds and outright odds?
- Match odds cover a single game ("Bayern beats BVB"). Outright odds are long-term aggregates ("Bayern wins the league"). Outright markets have deeper liquidity; match markets have faster resolution.
- 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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