Recent Met Office and BBC forecasts for London on May 19 point to a daily maximum near 18°C under light winds and scattered thundery showers, which explains the near-even market split between 18°C and 17°C. Ensemble model guidance shows modest spread around this value due to variable cloud cover and the timing of any rainfall, which can suppress afternoon warming by 1–2°C. Mid-May climatology for the capital averages 16–17°C, so current conditions sit slightly above the seasonal baseline. Updated model runs and official briefings in the next 24–48 hours will refine the exact peak before resolution.
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 19?
Highest temperature in London on May 19?
18°C 33%
17°C 32%
16°C 16%
19°C 15%
NEW
NEW
May 19, 2026
12°C or below
<1%
13°C
<1%
14°C
1%
15°C
5%
16°C
16%
17°C
32%
18°C
33%
19°C
15%
20°C
7%
21°C
3%
22°C or higher
1%
18°C 33%
17°C 32%
16°C 16%
19°C 15%
NEW
NEW
May 19, 2026
12°C or below
$367 Vol.
<1%
13°C
$418 Vol.
<1%
14°C
$318 Vol.
1%
15°C
$329 Vol.
5%
16°C
$595 Vol.
16%
17°C
$491 Vol.
32%
18°C
$426 Vol.
33%
19°C
$358 Vol.
15%
20°C
$349 Vol.
7%
21°C
$1,696 Vol.
3%
22°C or higher
$326 Vol.
1%
This market will resolve to the temperature range that contains the highest temperature recorded at the London City Airport Station in degrees Celsius on 19 May '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.Recent Met Office and BBC forecasts for London on May 19 point to a daily maximum near 18°C under light winds and scattered thundery showers, which explains the near-even market split between 18°C and 17°C. Ensemble model guidance shows modest spread around this value due to variable cloud cover and the timing of any rainfall, which can suppress afternoon warming by 1–2°C. Mid-May climatology for the capital averages 16–17°C, so current conditions sit slightly above the seasonal baseline. Updated model runs and official briefings in the next 24–48 hours will refine the exact peak before resolution.
This market will resolve to the temperature range that contains the highest temperature recorded at the London City Airport Station in degrees Celsius on 19 May '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: May 17, 2026, 12:03 AM ET
Volume
$5,539End Date
May 19, 2026Market Opened
May 17, 2026, 12:03 AM ETResolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCThis market will resolve to the temperature range that contains the highest temperature recorded at the London City Airport Station in degrees Celsius on 19 May '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.Recent Met Office and BBC forecasts for London on May 19 point to a daily maximum near 18°C under light winds and scattered thundery showers, which explains the near-even market split between 18°C and 17°C. Ensemble model guidance shows modest spread around this value due to variable cloud cover and the timing of any rainfall, which can suppress afternoon warming by 1–2°C. Mid-May climatology for the capital averages 16–17°C, so current conditions sit slightly above the seasonal baseline. Updated model runs and official briefings in the next 24–48 hours will refine the exact peak before resolution.
This market will resolve to the temperature range that contains the highest temperature recorded at the London City Airport Station in degrees Celsius on 19 May '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
$5,539End Date
May 19, 2026Market Opened
May 17, 2026, 12:03 AM ETResolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCRecent Met Office and BBC forecasts for London on May 19 point to a daily maximum near 18°C under light winds and scattered thundery showers, which explains the near-even market split between 18°C and 17°C. Ensemble model guidance shows modest spread around this value due to variable cloud cover and the timing of any rainfall, which can suppress afternoon warming by 1–2°C. Mid-May climatology for the capital averages 16–17°C, so current conditions sit slightly above the seasonal baseline. Updated model runs and official briefings in the next 24–48 hours will refine the exact peak before resolution.
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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