Highest temperature in Dallas on June 28?

Platform comparison

Market context

The real-world event hinges on the highest temperature recorded at Dallas Love Field on 28 June 2026, with the market currently pricing a YES outcome at 0% implied probability. This suggests traders believe the temperature will fall outside the specific range being bet on, despite historical data showing June highs in Dallas typically ranging from 96°F to 100°F[3]. The all-time record for this specific date is 110°F, set in 1980, indicating that extreme heat is possible but not guaranteed for the current year[8].

Historical patterns frame the current probability as a reflection of seasonal variance rather than an impossibility of heat. While June averages show highs increasing from 88°F to 94°F with frequent overcast conditions[4], recent forecasts for June 2026 predict daily highs consistently between 96°F and 100°F[3]. Traders comparing platforms like Polymarket, Kalshi, and Betfair should note that implied probability (0%) differs from decimal odds, and fee structures vary significantly; Kalshi requires strict KYC while Polymarket offers broader access, which may influence liquidity depth on this specific weather event.

Key catalysts include the National Weather Service’s hourly updates and Wunderground’s daily resolution data, which will confirm the final temperature[1][6]. A trader must monitor the heat index, which recently reached 97.9°F, and watch for any sudden shifts in cloud cover that could suppress temperatures below the 96°F threshold[5]. Recent reports note DFW experienced nine 100-degree days in May, suggesting a trend of elevated heat that could persist into late June, though the specific range remains the critical variable for settlement[7].

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 Kalshi 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

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.

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. Kalshi 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.