Highest temperature in Atlanta on July 27?

Platform comparison

Market context

Atlanta's weather on 27 July 2026 will be shaped by typical summer conditions in the Southeast, where high temperatures routinely exceed 90°F during peak summer months. The settlement window closes at midday, capturing the full diurnal cycle through the morning peak. Current market pricing reflects uncertainty about which specific temperature band will contain the day's high, with no consensus forming around any particular range.

Historical July data from Hartsfield-Jackson Airport shows consistent patterns: the station records average highs near 89°F in late July, though individual days frequently reach into the low to mid-90s. Extreme heat events pushing toward 100°F occur roughly once per decade during this period. The 0% probability assigned to certain ranges suggests traders are calibrating expectations against these seasonal norms rather than anticipating anomalous conditions. Comparable years provide a baseline—July 2019 saw highs of 93°F, whilst July 2012 peaked at 96°F during a broader drought pattern.

Traders should monitor the National Weather Service Atlanta office forecasts as the date approaches, particularly any advisories regarding heat domes or upper-level ridge positioning that could drive temperatures above the 95°F threshold. Atmospheric patterns 10–14 days prior to the settlement date will signal whether tropical moisture or dry continental air masses dominate. The resolution source, Wunderground's historical data for KATL station, records observations consistently and updates daily—checking recent July patterns at that specific station will ground expectations more precisely than broader regional forecasts.

Methodology

We track Highest temperature in Atlanta on July 27? across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

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 Prediction Today. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Prediction Today trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

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.