Highest temperature in Los Angeles on July 12?

Platform comparison

Market context

Los Angeles is entering its peak summer heat window, with July 12 historically marking one of the hottest days of the year at the Los Angeles International Airport station. Long-term climate data indicates the average high for mid-July sits near 85°F, while recent forecasts for July 2026 project daily highs ranging between 78°F and 92°F[2]. The current 0% crowd-implied probability for a specific outcome suggests the market is pricing in a near-certain resolution to a higher temperature bracket, effectively dismissing the possibility of cooler, anomalous conditions.

Historical precedents reinforce this bullish heat stance, as Southern California recently experienced a record-breaking heatwave in March 2026 that saw temperatures soar 25 degrees above normal[6]. Such extreme anomalies often signal a season prone to sustained high-pressure systems, which typically drive mid-summer temperatures toward the upper end of the climatological range[9]. With long-term averages showing July 27 reaching 90.3°F, the probability of July 12 staying below typical thresholds appears negligible given the region’s recent thermal volatility.

Traders should monitor the National Weather Service’s daily climatological reports and real-time Wunderground updates as the primary settlement catalysts, since these sources dictate the final resolution[4]. While no scheduled political debates or campaign-finance disclosures directly influence weather outcomes, the market’s zero probability on the lower bound implies confidence that no sudden marine layer intrusion will disrupt the heat pattern. The prevailing catalyst is the established seasonal trend of intense sunshine and high-pressure dominance, which has already pushed recent July forecasts to the 92°F ceiling[2].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Political prediction markets differ structurally from sports betting: thinner liquidity, longer settlement windows, higher sensitivity to single news events. This page shows the live Polymarket quote for Highest temperature in Los Angeles on July 12? plus platform attributes for the three reference venues, so you can see at a glance where the deepest market for this question sits.

Resolution & payout

Political markets typically settle on official candidate or agency confirmation. Polymarket uses UMA Optimistic Oracle: a proposer posts the outcome with a bond, the two-hour window opens, then the smart contract pays USDC.

Kalshi settles USD via CFTC clearinghouse, with clearly defined resolution sources (e.g. AP race calls for elections). Betfair settles after the official outcome is registered with the league or agency. Manifold is play-money.

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.

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.

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.

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.