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Highest temperature in Miami on August 6?

Live odds for "Highest temperature in Miami on August 6?" pulled from the Polygon order book, alongside the platform attributes of every venue that runs this contract.

88-89°F 100% 77°F or below 0% 78-79°F 0% 80-81°F 0% Volume: $85K Liquidity: $59K Closes: 6 Aug 2026
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Highest temperature in Miami on August 6?

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Polymarket (via Polymarket Bot UK) Pick
polygram.ink (preferred broker)
100% 0% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle Place a position →
Polymarket (direct)
polymarket.com
100% 0% 0% Geo-blocked in US/UK/EU USDC, on-chain Place a position →
Kalshi
kalshi.com
Up to 7% per trade US-only, KYC required USD Place a position →
Betfair Exchange
betfair.com
2-5% commission Full KYC from first trade GBP / EUR Place a position →
Manifold Markets
manifold.markets
Play-money (mana) None — play-money Mana (no cash-out) Place a position →

Outcome probabilities

Current market-implied probability for each outcome, from the live order book.

OutcomeProbability
88-89°F100%
77°F or below0%
78-79°F0%
80-81°F0%
82-83°F0%
84-85°F0%
86-87°F0%
90-91°F0%
92-93°F0%
94-95°F0%
96°F or higher0%

Market context

Miami’s midday heat on 6 August will be judged by the top reading at Miami International Airport, not the softer headline number shown in summary views, so the practical task is to capture the actual *daily observations* maximum and map it into the market’s strike band. The crowd’s 0% YES implies no visible expectation of an extreme upside print, which is consistent with Miami’s August climatology: historical averages sit around 90°F for highs, and recent August days have clustered mainly in the upper 80s to low 90s rather than breaking far above that range.[1][3][5]

For a trader running this programmatically, the useful historical anchor is that Miami’s distribution is usually tight unless a heat ridge or unusual dry-air setup pushes temperatures higher; on comparable summer days, most outcomes land in the 88–91°F zone, while 94°F-plus is materially rarer.[1][4][12] That means the market is often less about forecasting a single precise maximum than about deciding whether the day clears the next bracket, which is exactly the kind of problem that lends itself to automated threshold logic, conditional orders, and last-hour checks against the source table rather than weather apps’ summary high.

Catalysts to watch are the National Weather Service’s Miami forecast products, any short-term adjustments in tropical moisture or cloud cover, and whether the sea breeze stalls long enough to let inland warmth peak near the airport site; those inputs matter more than broad monthly averages because the settlement depends on one station and one date.[3][5] The key operational dependency is the Weather Underground daily observations page for KMIA, so a bot or copy-trading setup should poll the station feed near local afternoon peak time and again after the observation window closes, then compare the highest listed Fahrenheit value with the market bands.[2][6]

Sources: 1 · 2 · 3 · 4 · 5

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 Bot UK, which mirrors the Polymarket order book directly.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

UK Frequently Asked Questions

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 Bot 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.
Is Polymarket legal in the UK?
Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.
Do I pay tax on prediction market profits in the UK?
UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.
How do I deposit on Polymarket from the UK?
UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.
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