Highest temperature in Dallas on June 28?

Platform comparison

Market context

A powerful heat wave is currently expanding across the central United States, driving dangerously high temperatures and intense summer conditions specifically through Texas, Oklahoma, and the Midwest, with millions facing prolonged periods of extreme heat and high humidity that elevates the heat index significantly [2]. This real-world event frames the 0% YES probability on the Dallas market, as the prevailing weather pattern suggests temperatures will far exceed the lower ranges implied by the "no" outcome, aligning with the 100% frontrunner seen on the similar June 23 Polymarket event which settled at 92–93°F [1].

Historical records for Dallas Love Field show a June 26 high of 100°F in 2022, while the 2026 monthly forecast predicts daily highs between 96°F and 100°F with overnight lows of 77°F to 83°F, indicating that the current 0% probability likely misprices the likelihood of extreme heat given the active heat wave [3][5]. Traders should monitor the National Weather Service 7-day forecast updates and the specific heat index readings, which recently exceeded 115°F in nearby towns, as these are the primary catalysts that will determine if the temperature breaches the upper resolution thresholds [2][6].

When comparing platforms, Polymarket displays decimal odds and lower fees with minimal KYC, whereas Kalshi and Betfair often utilise implied probability models with stricter identity verification and higher fee structures, creating divergences in how the 0% probability is interpreted and priced across books [1]. Smarkets and Betfair may offer different liquidity depths for this specific weather event, meaning the implied probability on one platform could shift faster than another depending on the fee structure and the speed of regulatory compliance checks required for new traders entering the market.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page compares Highest temperature in Dallas on June 28? 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 Polymarket Alternative, 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

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.

Which platform supports Klarna/SOFORT?

Directly: none. Polymarket accepts only USDC on Polygon. Polymarket Alternative 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.