Highest temperature in NYC on July 26?

Platform comparison

Market context

LaGuardia’s official reading for 26 July 2026 is the settlement driver here, so the market is effectively about whether the airport tops out in the low-to-mid 80s Fahrenheit or pushes higher during the afternoon. On Polymarket, the current book is centred on **84–85°F** at 41%, with **82–83°F** next at 36%, which implies traders are clustering around a fairly tight warm-weather range rather than pricing a true heat-extreme.[1]

That matters because airport highs often move differently from city-centre feels: a sunny, breezy day can leave the headline New York temperature lower than street-level expectations, while a modest shift in cloud cover or wind direction can still add a couple of degrees. Historical comparable cases in midsummer therefore tend to reward traders who focus on the exact airport station and the likely daily maximum window, not just the city-wide forecast language. In the current context, the crowd-implied 0% YES on this contract looks like a pricing artefact rather than a genuine belief that the station will fail to register a valid high.

For platform comparison, Polymarket shows the market as a probability across discrete buckets, while Kalshi and Betfair-style books typically present prices in decimal format or as exchange odds, which can make small moves look different even when the underlying view is similar. Fees and access also diverge: exchange-style venues usually add clearer commission or spread costs, while KYC and jurisdictional reach can be stricter on regulated platforms than on crypto-native ones. Traders should watch the final National Weather Service forecast updates, any heat advisories, and the day-of cloud and wind trend, because those are the main inputs that can shift the realised LaGuardia high into an adjacent bucket.[2][3]

Sources: 1 · 2 · 3

Methodology

This page compares Highest temperature in NYC on July 26? specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. The live probability is the Polymarket mid; the comparison columns summarise each venue's fee structure, KYC, settlement currency and payment rails. Every CTA routes to Robinhood Prediction Markets, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). On-chain settlement clears in minutes — the fastest payout path of the four.

FAQ

Polymarket vs Kalshi — which is better?

Depends on your location. Kalshi is CFTC-regulated, US-only with full KYC. Polymarket is global, on-chain, no KYC up to $1,500. Polymarket has ~10x higher liquidity but higher regulatory risk.

What does Polymarket cost vs Kalshi?

Polymarket: 0% fees, only Polygon network costs (~$0.01/trade). Kalshi: up to 7% per trade plus spread. For high-frequency traders, Polymarket is dramatically cheaper.

Is Betfair a Polymarket alternative?

Only partially. Betfair Exchange is UK-focused with a sports-betting emphasis; they have politics markets but with thinner liquidity than Polymarket. Settlement in GBP/EUR, 2-5% commission on winnings.

Which platform is accessible globally?

Polymarket is geo-blocked in the US/UK/EU. Kalshi is US-only. Betfair and Smarkets are UK-restricted. Robinhood Prediction Markets has a different geo footprint and routes to Polymarket's order book at 0% fees.

Which platform supports Klarna/SOFORT?

Directly: none. Polymarket accepts only USDC on Polygon. Robinhood Prediction Markets offers a fiat on-ramp via Klarna or SOFORT (DE/AT/CH) and converts internally to USDC for the Polymarket order book. T+1 processing.