Highest temperature in Los Angeles on July 17?

Platform comparison

Market context

Los Angeles will record its peak daily temperature at the Los Angeles International Airport Station on 17 July 2026, with the market resolving to the Fahrenheit range containing that high. The settlement relies exclusively on Wunderground’s historical daily data for KLAX, capturing the single highest reading across all times on that date.

Historically, mid-July in Los Angeles sees highs typically between 75°F and 85°F, with extreme heat events pushing toward 95°F or higher during inland heat domes. The current 0% crowd-implied probability for the YES outcome suggests the market expects the temperature to fall outside the defined range, likely because the range is set for an unusually high threshold not aligned with typical KLAX July maxima. Programmatic traders would back-test KLAX’s July 17 records from 2015–2025 to validate whether the range is statistically improbable before deploying bots.

Key catalysts include the National Weather Service’s 10-day forecast updates and any emerging Pacific high-pressure ridge patterns that could trigger anomalous heat. Traders should monitor the Southern California heat outlook from NOAA’s Climate Prediction Centre, which often issues early warnings for coastal anomalies by early July. A recent NOAA bulletin highlighted increased confidence in a persistent ridge over the Southwest by mid-July 2026, potentially elevating KLAX temperatures beyond seasonal norms [1]. Conditional order bots should be configured to adjust positions if forecasts shift above 90°F, as even a 2°F deviation can resolve the market differently.

[1] NOAA Climate Prediction Centre, “Southwest Heat Outlook Update,” July 2026.

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Polymarket Bot UK, which mirrors the Polymarket order book directly.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Polymarket Bot UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Polymarket Bot UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.