Highest temperature in Miami on August 6?

Platform comparison

Market context

Miami’s temperature on 6 August 2026 was shaped by the usual late-summer heat and humidity, with nearby forecast and history pages pointing to daily highs around the upper 80s to low 90s Fahrenheit rather than anything extreme. The market is therefore leaning on whether the airport station briefly reached the upper end of that band during the day, with the crowd’s 0% Yes implying it is pricing in an ordinary Miami August profile rather than a standout hot spell.[1][3][14]

For context, Miami’s climatology in August typically sits near 90°F for highs, and recent comparable days in early August 2026 were mostly in the high 80s to low 90s, which makes the 88–89°F bin the most natural reference point for traders watching this contract.[1][3] Because the market resolves from the Weather Underground daily observations for Miami International Airport rather than a headline “day high” summary, intraday spikes, timing of thunderstorms, and the exact hourly observation sequence matter more than any single forecast image or city-wide average.[2][6]

The key catalyst is not a political calendar item but the post-event observation trail: traders should watch the Miami Intl Airport station record on Weather Underground, alongside any late updates from the National Weather Service or local forecast products if they are checking how the day evolved.[2][4][6] Since settlement runs through 12:00 UTC on 6 August, the decisive move is whether the airport’s recorded maximum lands in the same low-90s band implied by recent August weather pages, or whether a hotter hourly observation pushes it into the next range.[1][3][4]

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 Miami on August 6? 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.

UK Frequently Asked Questions

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.

Are UK election prediction markets available from the UK?

Yes. Betfair Exchange and Smarkets offer UKGC-regulated UK election markets (seat counts, party share, constituency results). Polymarket also lists UK election contracts with deeper global liquidity. Betfair winnings are typically tax-free for UK individuals; Polymarket profits are subject to HMRC CGT.