Highest temperature in Los Angeles on July 9?

Platform comparison

Market context

The underlying event is the peak daytime heat recorded at Los Angeles International Airport on 9 July 2026, a date historically prone to warm conditions but often capped by marine influence. Historical records show the all-time high for 9 July in Los Angeles reached 96°F, yet typical July highs at the airport cluster between 79°F and 90°F, with the average hovering near 85°F[1][4]. The current crowd-implied probability of 0% for any specific high range suggests traders are betting the marine layer will suppress temperatures below the thresholds offered, aligning with recent models that place the modal bracket at 74–77°F while noting sea breeze limits[7]. This framing indicates the market leans heavily on the catalyst of the National Weather Service’s 10am Los Angeles update, which will clarify whether the marine cap holds or breaks[7].

Traders should monitor the scheduled NWS 10am update for Los Angeles, as this declaration will determine if the sea breeze persists to cap highs or if inland heat advects to push temperatures higher[7]. Recent forecasts from the Los Angeles Times indicate interior peaks of 90–105°F, though coastal plains remain cooler at 80–90°F, creating a dependency on wind direction and marine layer strength[5]. The market is leaning on this weather bulletin as the primary catalyst, with no political debates or campaign-finance disclosures influencing the outcome, as the event is purely meteorological. Watch for any sudden shifts in the marine layer forecast, which could invalidate the current 0% probability stance if the cap fails.

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 9? 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

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.

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.

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.