Highest temperature in Dallas on July 27?

Platform comparison

Market context

On 27 July 2026, Dallas Love Field Station will record a daily high temperature in Fahrenheit, with the exact reading determining which range bracket resolves as YES. The market currently shows 0% implied probability across all temperature bins, suggesting either incomplete liquidity or a data-loading issue rather than genuine consensus that no temperature will be recorded. Love Field, located within Dallas proper, typically experiences July highs between 93–98°F, though heat domes and anomalous patterns occasionally push readings into the low 100s.

Historical July data from Dallas Love Field reveals that temperatures above 100°F occur roughly once every three to four years during the month, whilst readings below 90°F are exceptionally rare. The 1980 heat wave produced consecutive days above 100°F in Dallas, establishing a reference point for extreme scenarios. Current seasonal forecasting models and the broader pattern of North American summer temperatures will shape expectations as the settlement date approaches. Traders comparing Polymarket's decimal-odds interface against Kalshi's implied-probability display will find the latter more intuitive for weather ranges, though Polymarket's deeper liquidity pools sometimes compensate for presentation differences.

The National Weather Service Dallas/Fort Worth office publishes extended forecasts approximately ten days in advance, with updates every six hours. Traders should monitor late-July atmospheric patterns—particularly ridge positioning and moisture availability—as these drive daily highs more reliably than seasonal averages alone. The 0% crowd reading warrants scrutiny; on Betfair and Smarkets, such extreme probabilities often reflect thin order books rather than genuine market conviction, making early-position entry potentially valuable if weather models shift.

Methodology

We read Highest temperature in Dallas on July 27? from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live mid is the canonical probability; the side-by-side columns benchmark fees, KYC, settlement currency and deposit rails so you can choose the venue that fits your jurisdiction and trade size.

Resolution & payout

Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.

Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.

FAQ

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.

Which platform has the deepest liquidity?

Polymarket — by a wide margin. Top markets reach $50-500M volume, Kalshi ~$200M cumulative, Betfair similar. Deeper liquidity means your trade moves the quote less.

What about Smarkets as an alternative?

Smarkets is a UK betting exchange with a lower default commission (2%) than Betfair. Liquidity on political markets is below Polymarket, comparable to Kalshi. Geo-blocked in many jurisdictions.

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.