Highest temperature in Mexico City on July 24?

Platform comparison

Market context

Mexico City's peak temperature on 24 July 2026 will be measured at Benito Juárez International Airport and resolved against historical Weather Underground records. The settlement window closes at 12:00 UTC that day, meaning traders must assess conditions before midday observations are finalised. This market resolves to a specific temperature range in Celsius, with the current 0% YES probability suggesting the crowd expects the high to fall outside the upper threshold bracket.

July represents Mexico City's rainy season, with afternoon convection typically moderating peak temperatures. Historical data from the airport station shows July highs averaging 25–27°C, though extremes have reached 29–30°C during drier years. The 0% probability reflects either a very high threshold or trader uncertainty about the settlement mechanics; comparable July markets on this venue have shown wider probability distributions when thresholds span 1–2°C increments. Seasonal patterns favour moderate rather than exceptional heat, given the region's elevation at 2,250 metres and regular afternoon precipitation.

Traders should monitor Mexico City's weather forecasts from mid-July 2026 onwards, particularly tracking whether high-pressure systems develop over central Mexico. The National Meteorological Service (Servicio Meteorológico Nacional) publishes extended forecasts that typically become reliable 7–10 days ahead. Any significant deviation from normal monsoon patterns—such as delayed rains or a ridge of high pressure—would shift temperature expectations upward. USDC settlement occurs post-resolution, so traders should confirm the exact threshold range before market close to avoid ambiguity on which bracket the final recorded temperature occupies.

Methodology

This page reads Highest temperature in Mexico City on July 24? on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed alongside for venue context. Every CTA routes to BTC Prediction, which mirrors the Polymarket order book directly.

Resolution & payout

Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.

Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.

FAQ

Why USDC and not ETH or USDT?

USDC is the Polygon standard — audited reserves (Circle, monthly attestation), deepest order book, low gas costs. ETH volatility would distort probability quotes; USDT has thinner Polygon liquidity than USDC.

What does a transaction cost on Polygon?

Polygon gas is typically under $0.01 per transaction. A full trade cycle (Approve + Order + Fill) totals around $0.03 — compared to $5-50 on Ethereum mainnet.

How does UMA secure the resolution?

The UMA Optimistic Oracle uses a bond system: a proposer posts a bond, a two-hour challenge window opens. On dispute the losing side forfeits the bond — financial incentive for honest resolution.

How volatile are crypto prediction markets?

Crypto markets react to spot prices — a 5% BTC move typically shifts a "BTC above X by date" market 10-20%. Polymarket crypto market liquidity is usually six-figure USD, sufficient for active trading.

Which crypto markets exist on Polymarket?

Currently active markets include BTC/ETH/SOL price targets, halving dates, ETF approvals, hard-fork outcomes and Layer-2 TVL thresholds. The list updates weekly; biggest volume sits on BTC and ETH price forecasts.