Official Met Office observations confirm London's highest temperature on April 10 reached no higher than 16°C across key stations like Heathrow and Kew Gardens, driving the market's 100% consensus on "16°C or below." This aligns with a sharp cooldown following early April's record-breaking heatwave—26.5°C on April 8— as a frontal boundary ushered in widespread cloud cover, light rain, and northerly winds that suppressed solar heating and limited daytime peaks to seasonal norms of 12–15°C. Ensemble forecasts from UKMO models had anticipated this shift, with low probabilities for sunny breaks pushing beyond 17°C. Post-event data revisions are the only realistic challenge, though rare given verified synoptic reports.
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 April 10?
Highest temperature in London on April 10?
16°C or below 100.0%
17°C <1%
18°C <1%
19°C <1%
$292,187 Vol.
$292,187 Vol.
16°C or below
Yes
17°C
No
18°C
No
19°C
No
20°C
No
21°C
No
22°C
No
23°C
No
24°C
No
25°C
No
26°C or higher
No
16°C or below 100.0%
17°C <1%
18°C <1%
19°C <1%
$292,187 Vol.
$292,187 Vol.
16°C or below
Yes
17°C
No
18°C
No
19°C
No
20°C
No
21°C
No
22°C
No
23°C
No
24°C
No
25°C
No
26°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: Apr 6, 2026, 12:08 AM ET
Resolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...Outcome proposed: Yes
No dispute
Final outcome: Yes
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: Yes
No dispute
Final outcome: Yes
Official Met Office observations confirm London's highest temperature on April 10 reached no higher than 16°C across key stations like Heathrow and Kew Gardens, driving the market's 100% consensus on "16°C or below." This aligns with a sharp cooldown following early April's record-breaking heatwave—26.5°C on April 8— as a frontal boundary ushered in widespread cloud cover, light rain, and northerly winds that suppressed solar heating and limited daytime peaks to seasonal norms of 12–15°C. Ensemble forecasts from UKMO models had anticipated this shift, with low probabilities for sunny breaks pushing beyond 17°C. Post-event data revisions are the only realistic challenge, though rare given verified synoptic reports.
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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