Highest temperature in Houston on July 10?

Platform comparison

Market context

Houston’s William P. Hobby Airport recorded a mid-90s Fahrenheit high on 10 July 2026, consistent with National Weather Service guidance and long-term July averages of 93°F[1][3]. Historical data shows daily highs in Houston during July rarely fall below 87°F or exceed 100°F, with the market currently favouring the 90–91°F range at 40% probability and 92–93°F at 33%[1][5]. The 0% YES crowd-implied probability for an alternative outcome reflects strong alignment between model forecasts and climatological norms, suggesting minimal dispersion from expected values.

Traders should monitor real-time updates from Wunderground, the designated resolution source, and watch for scattered storm activity that could temporarily suppress peak temperatures on the settlement day[1][8]. While no new announcements are pending, the dependency on a single station’s hourly maximum means any equipment anomaly or data gap could alter the outcome. Polymarket displays this event using decimal odds and implied probabilities, whereas Kalshi and Betfair typically quote decimal odds directly, and Smarkets emphasises fee transparency with lower maker-taker charges compared to Polymarket’s tiered structure. KYC requirements also diverge: Polymarket permits non-KYC trading in some jurisdictions, while Kalshi mandates full US registration, creating access differences for international participants.

The convergence of forecast models and historical extremes frames the current pricing as robust, with little room for outlier outcomes unless an unforecasted tropical system intervenes. Given the settlement window ending 2026-07-10T12:00:00Z, the market’s resolution hinges solely on the recorded maximum at KHOU, not regional averages.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page compares Highest temperature in Houston on July 10? 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.

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.

Are all these platforms regulated?

No. Kalshi is CFTC-regulated (US). Betfair and Smarkets are UK Gambling Commission licensed. Polymarket operates without explicit regulation — a different risk profile than a regulated sportsbook.

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.