High pressure and a warm southerly airmass over southern England suppressed overnight radiative cooling, anchoring Met Office and ensemble model guidance for a London minimum near 17 °C at the official London City Airport station on May 26. This setup produced the market’s near-certain 17 °C outcome by limiting heat loss under clear skies and light winds typical of the current heatwave pattern. Historical May overnight lows in London average 8–12 °C, so the elevated baseline reflects the anomalous southerly flow rather than typical spring conditions. Only a late forecast shift introducing stronger winds or unexpected cloud cover could have altered the reading, though no such change materialized in the final model runs.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in London on May 26?
Lowest temperature in London on May 26?
17°C 100.0%
13°C or below <1%
14°C <1%
15°C <1%
$35,704 Vol.
$35,704 Vol.
May 26, 2026
13°C or below
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
No
23°C or higher
No
17°C 100.0%
13°C or below <1%
14°C <1%
15°C <1%
$35,704 Vol.
$35,704 Vol.
May 26, 2026
13°C or below
$4,044 Vol.
No
14°C
$793 Vol.
No
15°C
$1,343 Vol.
No
16°C
$3,605 Vol.
No
17°C
$2,886 Vol.
Yes
18°C
$2,503 Vol.
No
19°C
$682 Vol.
No
20°C
$2,690 Vol.
No
21°C
$4,945 Vol.
No
22°C
$2,210 Vol.
No
23°C or higher
$10,003 Vol.
No
This market will resolve to the temperature range that contains the lowest temperature recorded at the London City Airport Station in degrees Celsius on 26 May '26.
The resolution source for this market will be information from Wunderground, specifically the lowest 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.High pressure and a warm southerly airmass over southern England suppressed overnight radiative cooling, anchoring Met Office and ensemble model guidance for a London minimum near 17 °C at the official London City Airport station on May 26. This setup produced the market’s near-certain 17 °C outcome by limiting heat loss under clear skies and light winds typical of the current heatwave pattern. Historical May overnight lows in London average 8–12 °C, so the elevated baseline reflects the anomalous southerly flow rather than typical spring conditions. Only a late forecast shift introducing stronger winds or unexpected cloud cover could have altered the reading, though no such change materialized in the final model runs.
This market will resolve to the temperature range that contains the lowest temperature recorded at the London City Airport Station in degrees Celsius on 26 May '26.
The resolution source for this market will be information from Wunderground, specifically the lowest 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 lowest 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 22, 2026, 12:36 AM ET
Volume
$35,704End Date
May 26, 2026Market Opened
May 22, 2026, 12:36 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 lowest temperature recorded at the London City Airport Station in degrees Celsius on 26 May '26.
The resolution source for this market will be information from Wunderground, specifically the lowest 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.High pressure and a warm southerly airmass over southern England suppressed overnight radiative cooling, anchoring Met Office and ensemble model guidance for a London minimum near 17 °C at the official London City Airport station on May 26. This setup produced the market’s near-certain 17 °C outcome by limiting heat loss under clear skies and light winds typical of the current heatwave pattern. Historical May overnight lows in London average 8–12 °C, so the elevated baseline reflects the anomalous southerly flow rather than typical spring conditions. Only a late forecast shift introducing stronger winds or unexpected cloud cover could have altered the reading, though no such change materialized in the final model runs.
This market will resolve to the temperature range that contains the lowest temperature recorded at the London City Airport Station in degrees Celsius on 26 May '26.
The resolution source for this market will be information from Wunderground, specifically the lowest 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 lowest 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
$35,704End Date
May 26, 2026Market Opened
May 22, 2026, 12:36 AM ETResolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
High pressure and a warm southerly airmass over southern England suppressed overnight radiative cooling, anchoring Met Office and ensemble model guidance for a London minimum near 17 °C at the official London City Airport station on May 26. This setup produced the market’s near-certain 17 °C outcome by limiting heat loss under clear skies and light winds typical of the current heatwave pattern. Historical May overnight lows in London average 8–12 °C, so the elevated baseline reflects the anomalous southerly flow rather than typical spring conditions. Only a late forecast shift introducing stronger winds or unexpected cloud cover could have altered the reading, though no such change materialized in the final model runs.
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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