Highest temperature in Los Angeles on July 22?

Platform comparison

Market context

Los Angeles International Airport is the settlement point, so the event is not about citywide heat in the abstract but the single highest reading posted at KLAX on 22 July 2026. With the market currently pricing a very high chance of **76–77°F**, the crowd is effectively betting on a modest afternoon peak rather than a breakout heat day.[1]

That framing matters because airport temperatures in Los Angeles often run below inland neighbourhoods, especially when marine influence keeps the coastal strip cooler. Recent local reporting has highlighted the city’s sensitivity to heat waves and the need for cooling centres, but those episodes usually matter for this market only if they push KLAX itself above the usual low-to-mid 70s range.[3] In practice, the market is leaning on a continuation of ordinary coastal summer weather more than on an extreme heat scenario.[1][2]

The main catalyst to watch is the actual hourly progression at KLAX, not broader basin forecasts alone: a late-morning marine layer clearing, an onshore breeze, or stronger-than-expected sunshine can shift the day’s high by a few degrees. Traders should focus on short-range weather updates from forecasters covering Los Angeles and on the airport station’s daily readings, because the settlement source is the Wunderground KLAX history page rather than a citywide composite.[1]

Sources: 1 · 2 · 3

Methodology

This page tracks Highest temperature in Los Angeles on July 22? across four political prediction venues. Live odds come from the Polymarket order book (the deepest political prediction-market book). Kalshi is the CFTC-regulated US alternative, Betfair the established UK sports-exchange with politics markets, Manifold the open play-money variant. For users geo-blocked from Polymarket directly, brokers like Trump Prediction provide a 0%-fee route into the same order book.

Resolution & payout

For political markets the resolution source is decisive. Polymarket defines a concrete source per contract (e.g. AP, Reuters, official electoral commission) and uses the UMA Optimistic Oracle as the on-chain dispute mechanism. With a clearly defined outcome the USDC payout lands within minutes of the final confirmation.

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.

What resolution source is used for elections?

Polymarket defines the source per contract — usually Associated Press (AP Race Call), Reuters or the official electoral commission. The source is stated in contract details before the market opens.

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.