Highest temperature in Atlanta on August 1?

Platform comparison

Market context

Atlanta’s 1 August temperature printed a fairly ordinary late-summer outcome rather than a heat spike, which helps explain why the market has settled near the lower bands rather than pricing in an extreme daily high. The key settlement reference is the highest reading at Hartsfield-Jackson International Airport, and historical August data show Atlanta’s 1 August record high is 99°F, with typical highs for that date closer to the upper 80s. [1]

That historical shape matters because Atlanta can still surge into the 90s in early August, but the market’s present 0% yes view on the top-end buckets is consistent with a city that usually needs a strong ridge of heat to reach the very highest bands. Recent climate summaries show Atlanta’s summer maxima can touch 100°F in peak heat, yet those are singular, hot-day events rather than the norm. [11][4]

For traders, the main catalyst is the forecast pattern into the close of the settlement window: cloud cover, shower chances and humidity are what most directly cap the airport high. The market itself has been leaning on a mid-80s forecast band, with recent commentary pointing to partly cloudy skies, light southerly flow and moderate humidity as the reason the daily maximum was expected to stay around 84–87°F. [2] In practical terms, any late-afternoon convective development or a stronger-than-expected warm-up would be the only plausible route to a meaningfully higher print.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Political prediction markets differ structurally from sports betting: thinner liquidity, longer settlement windows, higher sensitivity to single news events. This page shows the live Polymarket quote for Highest temperature in Atlanta on August 1? plus platform attributes for the three reference venues, so you can see at a glance where the deepest market for this question sits.

Resolution & payout

Political markets typically settle on official candidate or agency confirmation. Polymarket uses UMA Optimistic Oracle: a proposer posts the outcome with a bond, the two-hour window opens, then the smart contract pays USDC.

Kalshi settles USD via CFTC clearinghouse, with clearly defined resolution sources (e.g. AP race calls for elections). Betfair settles after the official outcome is registered with the league or agency. Manifold is play-money.

FAQ

How accurate are political prediction markets?

Historically more accurate than polls. Polymarket's Brier score on US 2024 elections was ~0.11 — better than 538 (~0.14) and every mainstream poll. Markets aggregate information with real skin in the game.

Can prediction markets influence election outcomes?

Markets reflect expectations rather than create them. Studies show public-facing markets can anchor expectations, but don't influence the underlying outcome. Political markets are information, not advocacy.

How fast do political markets react to news?

High-liquidity markets move within seconds to minutes. A Trump tweet on the economy can shift the "Trump 2024" market 2-5 points before mainstream media has written anything.

Why do Polymarket and Kalshi differ on elections?

Kalshi must follow CFTC compliance — strict definitions, clear resolution sources, US citizens only with KYC. Polymarket operates globally without CFTC oversight — deeper liquidity, but also higher regulatory risk.

Which political events have the biggest volume?

US Presidential election, party nominations (DNC/RNC), Senate majorities, individual state outcomes (Pennsylvania, Michigan, Wisconsin), and major European elections. Peak markets reach $50-500M per event.