Highest temperature in Houston on July 23?

Platform comparison

Market context

Houston’s temperature on 23 July will be set by the day’s *peak reading* at William P. Hobby Airport, so the main question is whether the city’s usual summer heat is enough to push the high into the upper end of its typical July range. Houston’s July average sits around 77°F to 96°F, with rain still common enough to interrupt heat build-up on some days, which makes the exact high sensitive to cloud cover, sea-breeze timing and whether afternoon showers develop. [2]

For context, Houston frequently records highs in the mid-90s in midsummer, so a “no” outcome at 0% implies the market is treating the event as effectively impossible rather than merely unlikely. A recent local weather record for Houston showed a 95°F high alongside humid conditions, illustrating how quickly the city can reach the mid-90s when skies stay partly clear and winds remain light. [1][2]

The key catalysts are the day’s forecast evolution, the timing of any convective rain bands, and the official reading at the Hobby Airport station as the afternoon progresses. Traders should watch whether forecasters raise or lower the expected maximum as the morning soundings, radar trends and any local weather alerts come in, since even a small shift in cloud cover can decide whether Houston tops out in the low-90s or mid-90s. The market is leaning on the temperature path itself, not on political or polling-style catalysts, despite the broader framing.

Sources: 1 · 2

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 Houston on July 23? 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

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.

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.

Why do Polymarket and Kalshi differ on elections?

Kalshi must follow CFTC compliance — strict definitions, clear resolution sources, US citizens only with KYC. Polymarket operates globally without CFTC oversight — deeper liquidity, but also higher regulatory risk.