Pronóstico: Highest temperature in NYC on July 4?

Platform comparison

Market context

On 4 July 2026, LaGuardia Airport in New York City will face a critical heat test as the nation braces for an intense summer heatwave. The market currently assigns a 0% probability to the “YES” outcome, implying traders expect the peak temperature to fall outside the defined range, likely below 98°F. This stark positioning contrasts with recent extremes: LaGuardia hit 104°F earlier this month, and the all-time record for the station stands at 107°F, recorded on 3 July 1966[5]. Historical data shows July highs at LaGuardia typically range from 81°F to 99°F, with the average high hovering near 90°F[1]. The current 0% stance suggests the market anticipates a cooler day than recent spikes, possibly due to forecast revisions or incoming cloud cover.

Traders must monitor live updates from the National Weather Service and Wunderground, as revisions to the heat dome forecast could shift the peak temperature significantly. Recent reports indicate 70% of the contiguous U.S. is expected to exceed 90°F, with heat indexes reaching 115°F[7], yet LaGuardia’s current reading sits at 91°F as of midday[2]. A key catalyst is the potential for overnight lows to remain elevated, which could suppress daytime peaks. The New York Times noted a heat index of 101°F at Chicago O’Hare on Monday, underscoring regional intensity[3]. With settlement ending at 12:00 UTC on 4 July, any sudden shift in wind patterns or cloud cover could alter the outcome. Watch for real-time Wunderground data, as thin volume and live NWS revisions make this market highly sensitive to forecast changes[8].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Football-specific comparison page for Pronóstico: Highest temperature in NYC on July 4?. 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?

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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.

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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.