Highest temperature in Los Angeles on July 12?

Platform comparison

Market context

Los Angeles is bracing for an extreme heatwave hitting the region on 9 July 2026, with temperatures forecast to soar 25 degrees above normal and shatter records across the Southland [6]. This event, described as the summer’s first major heat wave, has already pushed parts of the San Fernando Valley above 110°F, setting a precedent for how July 12 temperatures might behave [2]. The market’s current 0% YES probability implies the crowd expects the high to fall below the lowest defined range, yet historical parallels suggest a significant underestimation given the intensity of the current atmospheric conditions.

Historical data for mid-July in Los Angeles typically shows average highs around 85°F, with long-term averages reaching 29°C (84°F) [3][4]. However, the current heatwave is an outlier; recent records show temperatures hitting 106°F in March 2026 and 110°F in the recent July event [2][9]. If the heatwave persists through July 12, the temperature at the Los Angeles International Airport Station is likely to exceed standard seasonal norms, potentially landing in the 90–100°F range or higher, which contradicts the current zero-probability stance.

Traders should monitor the duration of the current heatwave and official cooling centre announcements, as authorities have already activated resources like the Michael Landon Center and Duarte Senior Center due to the extreme heat [2]. The resolution depends entirely on the Wunderground record for KLAX on 12 July 2026, so any shift in the forecast indicating the heatwave will break or continue is the primary catalyst [1]. With the settlement window ending on 12 July 2026 at 12:00 UTC, the market is leaning heavily on the persistence of this record-breaking thermal event rather than typical seasonal variability.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page tracks Highest temperature in Los Angeles on July 12? 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 Election Predictions UK provide a 0%-fee route into the same order book.

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.

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.

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 Election Predictions UK route into the same order book at 0% fees.

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.