Highest temperature in London on May 30?

"Highest temperature in London on May 30?" is a weather prediction market focused on the peak temperature recorded at London City Airport Station on 30 May 2026. The market resolves to the temperature range that contains the day’s highest reading, measured in whole degrees Celsius using the Wunderground daily history page for London City Airport. Because the outcome depends on the final published data point for the following date, traders are watching the forecast closely through the end of the day and into the next reporting update.

This event matters because it turns a specific local weather observation into a tradable forecast, letting market sentiment reflect expectations for London’s late-May conditions. As of the latest update, the market probability is around 5%, suggesting traders see a relatively low chance of the targeted temperature range. The prediction market is active and has drawn significant volume and open interest, making it a closely watched event prediction for weather-focused traders. The result will be based on the highest temperature actually recorded, with any later revisions ignored after the cutoff.