Highest temperature in London on July 23?: how this market works

What you need to know

This market is asking: what will the hottest moment of the day be in London on July 23, 2026? Specifically, it wants you to pick the peak temperature recorded that day at London City Airport, rounded to a whole number in Celsius. A result of 25°C means the hottest point of the day lands at exactly 25°C, not a range, just that single rounded number. Think of it as guessing the top of the thermometer for one specific summer day. The market settles based on the single highest temperature reading logged at London City Airport (station code EGLC) on July 23, 2026, as shown on Weather Underground. The number is rounded to a whole degree Celsius, so 25.7°C would count as 26°C. The result is locked in once the first reading for July 24 appears on that site. Any corrections made before that cutoff count, but corrections made after do not. No relevant recent news was provided for this market. That is normal this far out. The kind of updates worth watching for closer to the date would be extended weather forecasts for London in late July 2026, or any notable climate patterns, such as an early heatwave signal or an unusually cool summer outlook, from the UK Met Office. Weather a year away is genuinely hard to pin down. Even reliable forecasts only work a week or two ahead, so right now every option carries real uncertainty. The market currently leans toward 25°C at 38%, with 26°C close behind at 30% and 24°C at 18%, meaning the spread is wide and no outcome has a strong lead. July in London can swing from a mild 20°C to a sharp 30°C depending on whether continental heat pushes north or Atlantic cool air dominates.

The odds right now

• 25°C38%
• 26°C31%
• 24°C17%
• 27°C11%
• 23°C5%
• 28°C3%
• 22°C3%
• 21°C or below1%
• 29°C1%
• 30°C0%
• 31°C or higher0%

Price history

How this resolves

Resolves July 23, 2026

This market will resolve to the temperature range that contains the highest temperature recorded at the London City Airport Station in degrees Celsius on 23 Jul '26. The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the London City Airport Station, available here: https://www.wunderground.com/history/daily/gb/london/EGLC. Read the full resolution rules on the live market page.

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