Highest temperature in Los Angeles on July 20?

Platform comparison

Market context

Los Angeles is currently enduring a dangerous heatwave that has pushed temperatures across Southern California to extreme levels, with safety warnings issued for vulnerable residents and guidance to stay indoors during peak sun hours[3]. This ongoing weather event frames the context for the July 20 forecast, where the market currently assigns a 0% probability to temperatures exceeding the 80–81°F frontrunner range, despite the active heat conditions[1].

Historical data from this summer shows the market has successfully predicted similar outcomes, such as correctly forecasting a 74–75°F peak for Los Angeles on July 4, 2026[2]. The current 0% implied probability for higher temperatures aligns with the specific resolution source, Wunderground, which tracks the Los Angeles International Airport Station, a location often buffered by coastal marine layers even during inland heat spikes[1].

Traders should monitor the duration of the current extreme heat warning and any shifts in the marine layer, as these are the primary catalysts for the settlement window ending on 20 July 2026[3]. While the heatwave is active, the market leans heavily on the historical reliability of the KLAX station’s coastal moderation, suggesting the 80–81°F range remains the statistically dominant outcome unless the heatwave intensifies beyond current forecasts[4].

Sources: 1 · 2 · 3 · 4

Methodology

This page tracks Highest temperature in Los Angeles on July 20? 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.

Which platform has the deepest political liquidity?

Polymarket — by far. US 2024 presidential volume was ~$3.5B vs Kalshi (~$200M) and Betfair (~$120M). Where Polymarket is geo-blocked, brokers like Trump Prediction route into the same order book at 0% fees.

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.

Are political prediction markets legal in my country?

It varies. They sit in legal gray areas in most jurisdictions. Polymarket is geo-blocked from US/UK/EU; some broker frontends have a different geo footprint. Trade only with capital you can afford to lose, and only if you understand the legal status in your jurisdiction.

Which political events have the biggest volume?

US Presidential election, party nominations (DNC/RNC), Senate majorities, individual state outcomes (Pennsylvania, Michigan, Wisconsin), and major European elections. Peak markets reach $50-500M per event.