Met Office observations from London City Airport—the market's designated resolution station—recorded a maximum temperature of 13°C on May 10, 2026, under cloudy skies with northeast winds around 12 mph, driving trader consensus to 100% on this outcome as final data confirms it. This aligns with Weather Underground synoptic reports showing peaks near 55°F (13°C) amid a cooler-than-average air mass over the UK, several degrees below the May climatological high of 18–19°C at Heathrow. While provisional measurements carry minimal revision risk, an unlikely data audit revealing a higher reading from overlooked hourly observations could challenge resolution, though official validation typically solidifies such records within 24 hours.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in London on May 10?
13°C 100.0%
10°C or below <1%
11°C <1%
12°C <1%
$394,286 Vol.
$394,286 Vol.
10°C or below
No
11°C
No
12°C
No
13°C
Yes
14°C
No
15°C
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C or higher
No
13°C 100.0%
10°C or below <1%
11°C <1%
12°C <1%
$394,286 Vol.
$394,286 Vol.
10°C or below
No
11°C
No
12°C
No
13°C
Yes
14°C
No
15°C
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C or higher
No
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the London City Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/gb/london/EGLC.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: May 8, 2026, 12:07 AM ET
Resolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the London City Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/gb/london/EGLC.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Resolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Met Office observations from London City Airport—the market's designated resolution station—recorded a maximum temperature of 13°C on May 10, 2026, under cloudy skies with northeast winds around 12 mph, driving trader consensus to 100% on this outcome as final data confirms it. This aligns with Weather Underground synoptic reports showing peaks near 55°F (13°C) amid a cooler-than-average air mass over the UK, several degrees below the May climatological high of 18–19°C at Heathrow. While provisional measurements carry minimal revision risk, an unlikely data audit revealing a higher reading from overlooked hourly observations could challenge resolution, though official validation typically solidifies such records within 24 hours.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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