Highest temperature in Atlanta on July 13?

Platform comparison

Market context

Atlanta's highest temperature on 13 July 2026 will be recorded at Hartsfield-Jackson International Airport, the official weather station for the city. The settlement mechanism pulls directly from Wunderground's historical data feed for station KATL, which logs hourly readings throughout the day. Traders will need to evaluate whether conditions favour heat above or below the range thresholds offered, with the window closing at midday UTC on that date—meaning final readings capture the full diurnal cycle.

Historical July temperatures at KATL cluster around 88–92°F for daily highs, though heat waves regularly push into the mid-90s. The National Weather Service's 30-year normal for Atlanta in mid-July sits at 89°F; extreme outliers (95°F+) occur roughly once every 3–4 years during that month. Traders automating range selection should reference the airport's 2023 and 2024 July records via Wunderground's archive to calibrate baseline expectations and volatility assumptions.

The key dependency is the North Atlantic subtropical high-pressure system's positioning in early July 2026. Forecast models from NOAA and the European Centre for Medium-Range Weather Forecasts typically become reliable 10–14 days ahead; traders monitoring these outputs around late June will gain signal on whether a Bermuda High extension drives anomalous heat into the Southeast. Persistent drought conditions or tropical activity upstream could shift outcomes materially. Programmatic traders should flag any heat advisories issued by the National Weather Service for the Atlanta metro area in the days preceding 13 July, as these often correlate with above-normal daily maxima.

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Polymarket Review UK, which mirrors the Polymarket order book directly.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Polymarket Review UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.