Met Office forecasts indicate a maximum of 34°C across London today under continued high pressure, though with a low risk of isolated thundery showers developing later that could cap afternoon peaks. This follows yesterday’s record 38.1°C at Kew Gardens during the fifth heatwave of the summer, with today marking the final hot day before fresher conditions arrive. Ensemble models show tight clustering around 33–34°C depending on cloud cover and timing of any convection, while urban heat-island effects at central stations versus airport sites introduce minor variability. Traders appear to weigh the official 34°C guidance against the potential for slightly suppressed readings if showers arrive earlier than expected.
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 August 14?
34°C 50%
33°C 42%
35°C 7%
32°C 5%
$77,788 Vol.
$77,788 Vol.
29°C or below
<1%
30°C
<1%
31°C
<1%
32°C
5%
33°C
42%
34°C
50%
35°C
7%
36°C
<1%
37°C
<1%
38°C
<1%
39°C or higher
<1%
34°C 50%
33°C 42%
35°C 7%
32°C 5%
$77,788 Vol.
$77,788 Vol.
29°C or below
<1%
30°C
<1%
31°C
<1%
32°C
5%
33°C
42%
34°C
50%
35°C
7%
36°C
<1%
37°C
<1%
38°C
<1%
39°C or higher
<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 14 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the London City Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Market Opened: Aug 12, 2026, 1:02 AM ET
Resolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded at the London City Airport Station in degrees Celsius on 14 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the London City Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Resolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...Met Office forecasts indicate a maximum of 34°C across London today under continued high pressure, though with a low risk of isolated thundery showers developing later that could cap afternoon peaks. This follows yesterday’s record 38.1°C at Kew Gardens during the fifth heatwave of the summer, with today marking the final hot day before fresher conditions arrive. Ensemble models show tight clustering around 33–34°C depending on cloud cover and timing of any convection, while urban heat-island effects at central stations versus airport sites introduce minor variability. Traders appear to weigh the official 34°C guidance against the potential for slightly suppressed readings if showers arrive earlier than expected.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated


Beware of external links.
Beware of external links.
Frequently Asked Questions