Highest temperature in Lucknow on August 17?

Platform comparison

Market context

Lucknow's maximum temperature on 17 August 2026 will be measured at Chaudhary Charan Singh International Airport and resolved against Weather Underground's Daily Observations table. The 0% crowd probability reflects uncertainty about which specific temperature band will be recorded, rather than doubt that a reading will occur. August represents peak summer heat in Uttar Pradesh, with the city typically experiencing daily highs between 32–38°C during this period, though extreme heat events have pushed readings above 40°C in recent years.

Historical August data from Lucknow shows considerable year-to-year variation. The city recorded 42.2°C on 2 August 2022 and 41.5°C on 19 August 2019, demonstrating that temperatures in the upper 30s to low 40s Celsius are plausible. Conversely, monsoon activity or cloud cover can suppress highs to the mid-30s range. The settlement window closes at midday UTC on 17 August, which aligns with typical afternoon peak temperatures but occurs before evening readings, making morning forecasts the primary data point for traders.

Traders should monitor the Indian Meteorological Department's forecasts released in the days preceding 17 August, particularly any alerts regarding heat waves or monsoon progression across northern India. Atmospheric pressure systems and moisture availability in mid-August will determine whether conditions favour extreme heat or more moderate temperatures. Real-time weather station data from Lucknow becomes actionable only on the resolution date itself, so forward-looking meteorological guidance represents the only actionable intelligence available to traders now.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

UK Frequently Asked Questions

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 Prediction Today. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

Is Polymarket legal in the UK?

Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.

Do I pay tax on prediction market profits in the UK?

UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.

How do I deposit on Polymarket from the UK?

UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.