Highest temperature in Dallas on July 13?

Platform comparison

Market context

On 13 July 2026, the highest temperature recorded at Dallas Love Field Station will fall into one of several defined ranges. The settlement mechanism relies on historical weather data from Weather Underground, which archives daily highs for this specific airport weather station in Fahrenheit. The current crowd-implied probability of 0% suggests traders are either confident the market will resolve to a lower temperature bracket, or liquidity remains sparse at the extremes of the distribution.

Dallas summer temperatures are highly predictable within narrow bands. July highs in the Dallas area typically range between 92°F and 98°F, with extreme outliers above 100°F occurring roughly once per decade during severe heat waves. The 2011 heat wave saw Dallas record 103°F on multiple days; more recently, July 2022 peaked at 100°F. Historical data from the National Weather Service shows that temperatures above 102°F on any given July day in Dallas carry roughly 2–3% annual probability. The 0% crowd probability here likely reflects either a technical display issue or extremely thin order books at the highest temperature brackets.

Traders monitoring this market should watch National Weather Service forecasts beginning in late June 2026, particularly any heat dome or high-pressure system predictions for Texas. The Atlantic hurricane season (active June through November) can occasionally suppress peak temperatures through cloud cover and moisture, though July typically precedes peak Atlantic activity. Kalshi's weather markets often show tighter spreads than Polymarket on US domestic events due to KYC requirements limiting international participation; Betfair and Smarkets may display decimal odds formats that obscure the actual probability distribution across temperature bands, making direct comparison of edge difficult without manual conversion.

Methodology

We read Highest temperature in Dallas on July 13? 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

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.

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.

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.

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.

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.