Highest temperature in Paris on August 6?

Platform comparison

Market context

Paris’s temperature outcome today will be decided by the highest reading at Paris-Le Bourget Airport Station, not by a citywide average, so the market is really a bet on the day’s peak warmth rather than the broader feel across the capital. With the resolution window ending at 12:00 UTC, the key question is whether the afternoon maximum arrives before that cut-off and where it lands within the usual summer bands. [1][18]

The current 0% yes probability sits far below the climatological picture. Forecast material for Paris in early August points to highs around 25–26°C, with AccuWeather showing 81°F for 6 August, which is about 27°C, and the daily forecast from EaseWeather showing 25°C/15°C for the same date; both suggest a fairly ordinary summer day rather than an exceptional spike. [1][8] A 0% price implies the market is leaning on the absence of a heatwave-style setup, even though Paris has already seen severe June heat in 2026, including coverage of France’s record-setting conditions and Paris near 40°C during the earlier event. [2][11][14]

The main catalysts to watch are any late-hour forecast shifts, plus whether official heat warnings or model runs point to stronger afternoon heating than currently expected. Reuters and NPR both covered France’s recent extreme-heat episode, underscoring how quickly temperatures can overshoot in continental Europe when hot air masses build. [2][14] For this contract, traders should care most about updated near-term forecasts for Paris-Le Bourget, cloud cover and wind during the late morning into early afternoon, and whether the temperature peak arrives early enough to fall inside the settlement window.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page tracks Highest temperature in Paris on August 6? 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 Trump Prediction provide a 0%-fee route into the same order book.

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.

UK Frequently Asked Questions

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 Trump Prediction route into the same order book at 0% fees.

Are UK election prediction markets available from the UK?

Yes. Betfair Exchange and Smarkets offer UKGC-regulated UK election markets (seat counts, party share, constituency results). Polymarket also lists UK election contracts with deeper global liquidity. Betfair winnings are typically tax-free for UK individuals; Polymarket profits are subject to HMRC CGT.