Official Met Office observations confirm London City Airport recorded the highest temperature of 17°C on April 26, 2026, during mid-afternoon sunny spells following a cool, misty start—driving trader consensus to 100% implied probability for this outcome as provisional daily maximum data solidifies. This aligns with verified thermometer readings from key monitoring stations like Heathrow and Kew, standard for UK regional records, amid post-marathon weather patterns after early April's anomalous 26.6°C heat. While forecast models had hinted at highs near 18–20°C, actual atmospheric conditions including light winds and partial cloud cover capped warming. Revisions to final extremes are possible but rare absent equipment anomalies; traders await Met Office's end-of-day validation.
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 26?
Highest temperature in London on April 26?
17°C 100.0%
12°C or below <1%
13°C <1%
14°C <1%
$252,845 Vol.
$252,845 Vol.
Apr 26, 2026
12°C or below
No
13°C
No
14°C
No
15°C
No
16°C
No
17°C
Yes
18°C
No
19°C
No
20°C
No
21°C
No
22°C or higher
No
17°C 100.0%
12°C or below <1%
13°C <1%
14°C <1%
$252,845 Vol.
$252,845 Vol.
Apr 26, 2026
12°C or below
$8,871 Vol.
No
13°C
$3,163 Vol.
No
14°C
$3,727 Vol.
No
15°C
$23,595 Vol.
No
16°C
$36,173 Vol.
No
17°C
$66,285 Vol.
Yes
18°C
$28,437 Vol.
No
19°C
$28,353 Vol.
No
20°C
$28,590 Vol.
No
21°C
$13,499 Vol.
No
22°C or higher
$12,153 Vol.
No
This market will resolve to the temperature range that contains the highest temperature recorded at the London City Airport Station in degrees Celsius on 26 Apr '26.
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.Official Met Office observations confirm London City Airport recorded the highest temperature of 17°C on April 26, 2026, during mid-afternoon sunny spells following a cool, misty start—driving trader consensus to 100% implied probability for this outcome as provisional daily maximum data solidifies. This aligns with verified thermometer readings from key monitoring stations like Heathrow and Kew, standard for UK regional records, amid post-marathon weather patterns after early April's anomalous 26.6°C heat. While forecast models had hinted at highs near 18–20°C, actual atmospheric conditions including light winds and partial cloud cover capped warming. Revisions to final extremes are possible but rare absent equipment anomalies; traders await Met Office's end-of-day validation.
This market will resolve to the temperature range that contains the highest temperature recorded at the London City Airport Station in degrees Celsius on 26 Apr '26.
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.
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 24, 2026, 12:06 AM ET
Volume
$252,845End Date
Apr 26, 2026Market Opened
Apr 24, 2026, 12:06 AM ETResolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
This market will resolve to the temperature range that contains the highest temperature recorded at the London City Airport Station in degrees Celsius on 26 Apr '26.
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.Official Met Office observations confirm London City Airport recorded the highest temperature of 17°C on April 26, 2026, during mid-afternoon sunny spells following a cool, misty start—driving trader consensus to 100% implied probability for this outcome as provisional daily maximum data solidifies. This aligns with verified thermometer readings from key monitoring stations like Heathrow and Kew, standard for UK regional records, amid post-marathon weather patterns after early April's anomalous 26.6°C heat. While forecast models had hinted at highs near 18–20°C, actual atmospheric conditions including light winds and partial cloud cover capped warming. Revisions to final extremes are possible but rare absent equipment anomalies; traders await Met Office's end-of-day validation.
This market will resolve to the temperature range that contains the highest temperature recorded at the London City Airport Station in degrees Celsius on 26 Apr '26.
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.
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.
Volume
$252,845End Date
Apr 26, 2026Market Opened
Apr 24, 2026, 12:06 AM ETResolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official Met Office observations confirm London City Airport recorded the highest temperature of 17°C on April 26, 2026, during mid-afternoon sunny spells following a cool, misty start—driving trader consensus to 100% implied probability for this outcome as provisional daily maximum data solidifies. This aligns with verified thermometer readings from key monitoring stations like Heathrow and Kew, standard for UK regional records, amid post-marathon weather patterns after early April's anomalous 26.6°C heat. While forecast models had hinted at highs near 18–20°C, actual atmospheric conditions including light winds and partial cloud cover capped warming. Revisions to final extremes are possible but rare absent equipment anomalies; traders await Met Office's end-of-day validation.
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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