Highest temperature in Los Angeles on August 9?

Platform comparison

Market context

Los Angeles International Airport’s 9 August high is the relevant data point here, and the contract settles on the *highest* reading in Weather Underground’s Daily Observations table rather than the broader day-high summary. That matters because airport temperatures can differ from downtown or inland readings, and because late-day observations can move the final bin if the day warms further or if the table is revised before the next day’s first datapoint appears. Weather Underground’s own history pages are the designated source, so the market is effectively tied to one station and one timestamped record set rather than the wider Los Angeles area.[19][3]

The 0% crowd-implied probability suggests the market is treating the outcome as locked in, which is a common pattern once a reported maximum sits comfortably inside one resolution bucket. Comparable weather markets tend to converge quickly after the afternoon peak at KLAX is published, especially when National Weather Service time-series data already show a stable high in the upper 70s to low 80s and no sign of a late surge.[9][1] Recent reporting also pointed to persistent Southern California heat, with the region under heat advisories and nearby stations setting or tying records, but those headlines matter here only insofar as they explain why traders initially expected elevated readings rather than an extreme airport spike.[6][14]

The key catalyst for any reassessment is not a forecast update, but the final historical observation feed from Weather Underground and any late correction to the station log before the next day begins. Traders should watch whether KLAX’s Daily Observations table gets a higher late-day entry, because the market specification explicitly prioritises that table over the Day High & Low summary. National Weather Service hourly data around midday showed KLAX in the high 70s, which makes the remaining question one of finalisation, not direction.[9][19]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Entertainment-specific comparison page for Highest temperature in Los Angeles on August 9?. Polymarket's live quote (Polygon order book) shows the award probability. For awards markets, Polymarket usually has the deepest liquidity; Betfair runs comparable markets for Oscars/Emmys; Manifold for Eurovision.

Resolution & payout

Entertainment markets settle on official award ceremony or show end. Polymarket uses UMA Optimistic Oracle with a source URL to the official award website. Two-hour dispute window, then smart-contract payout in USDC.

FAQ

When do award markets resolve?

After the official announcement — e.g. Oscars ceremony end for Academy Awards markets, Eurovision final end for ESC markets. UMA Optimistic Oracle typically uses the official award website as the resolution source.

How accurate are award predictions?

Variable. Industry-predictable awards (Oscar Best Picture) have high market accuracy (Brier ~0.15). Reality-TV outcomes with small markets carry more noise. Eurovision is notorious for market upsets due to bloc voting.

What was the top Oscar 2025 market?

Best Picture, with ~$2.8M volume on Polymarket. "Anora" started as an underdog at ~8% and closed at ~62% before the ceremony — the biggest single Oscar market swing since 2019.

Who can trade Eurovision markets?

Polymarket is globally accessible but geo-blocked in select jurisdictions — traders there use broker frontends with a different geo footprint to reach the order book. Eurovision markets have strong European liquidity; German/Austrian/Swiss flow often drives consensus.

Is entertainment trading worth the effort?

Niche, but lucrative for experts. Award markets have fewer informed traders than political markets; combining industry expertise (film, music) with active research often surfaces mispricings. Volume cap: large bets move the market.