Highest temperature in NYC on July 23?

Platform comparison

Market context

LaGuardia Airport’s top reading on 23 July will settle this market, and the current book has already moved sharply away from extreme heat: the leading band is **80–81°F** at 72%, with **82–83°F** next at 19%.[1] That pricing implies traders expect a warm, but not exceptional, afternoon rather than a breakout spike into the upper 80s or 90s. The 0% YES figure on the headline outcome therefore looks more like a stale or misplaced crowd line than a view on the underlying weather itself, because the live distribution is concentrated in the low 80s.[1]

For context, late-July New York peaks often cluster around the low-to-mid 80s when humidity builds but the city is not under a major heat surge. The most relevant comparables are recent East Coast heat events: in July 2026, a wider regional heat wave broke long-standing records across multiple cities, showing that the corridor can still overshoot when large-scale patterns lock in hot air for several days.[2] Against that backdrop, a reading at LaGuardia in the 80-83°F range would be consistent with a normal summer high, while a move above that would usually require stronger-than-expected daytime heating, lighter cloud cover, and limited sea-breeze moderation.

Traders should watch for the final hourly forecast updates, any heat advisory or air-quality developments, and whether winds turn onshore near the airport, because LaGuardia is sensitive to coastal influence relative to inland parts of the city. The key dependency is the daytime evolution before the 12:00 UTC settlement cut-off: if temperatures peak early or cloud cover thickens, the maximum can print lower than broader New York City forecasts. Conversely, if the day trends clear and calm into the afternoon, the upper end of the current market bands becomes more plausible.[1]

Sources: 1 · 2

Methodology

Football-specific comparison page for Highest temperature in NYC on July 23?. 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 are live sports odds on Polymarket?

Some top-tier matches stay open during play — you can trade the half-time probability in the 70th minute. Polymarket mid-prices update second-by-second; any frontend mirroring the order book shows the same movement.

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.