Pronóstico: Highest temperature in Los Angeles on July 22?

Platform comparison

Market context

Polymarket is pricing the Los Angeles International Airport maximum for 22 July 2026 as a very narrow outcome: **76-77°F** is trading around 93%, with **78-79°F** the only meaningful alternative at about 7%[1]. For a user holding USDC on Polygon, that means the conditional tokens are effectively saying the day’s peak at KLAX is expected to land just below 78°F, not far enough for a broader summer heat spike to matter unless the airport station prints a clear upside surprise[1].

That pricing fits a market that is being read through the lens of airport microclimate, not downtown Los Angeles heat headlines. LAX temperatures are often moderated by marine influence, so traders should treat the market as a station-specific measurement rather than a citywide feel; on the day itself, the relevant number is the single highest reading reported by the Wunderground KLAX history page, which resolves the contract[1]. Recent local weather coverage also pointed to a regional heat advisory pattern in Southern California around 22 July, which can raise daytime maxima even when coastal sites remain comparatively restrained[3].

For traders, the main catalysts are the intraday temperature path at KLAX, any marine-layer clearing, and the timing of the afternoon peak before the settlement window closes at 12:00 UTC. Current conditions across Los Angeles have been warm and sunny, with AccuWeather showing 83°F and a much higher RealFeel, but that does not translate directly to the airport reading used for settlement[2]. In practice, the market will move most if forecast updates or observed coastal warming suggest KLAX can break out of the high-70s rather than stay in its usual narrow band[1][2].

Sources: 1 · 2 · 3

Methodology

This page reviews Pronóstico: Highest temperature in Los Angeles on July 22? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Polymarket Qué Es, which mirrors the Polymarket order book at 0% fees.

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

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.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

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.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

Do I need to KYC for this market?

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