Recent Met Office forecasts and ensemble model runs point to peak temperatures of 31–32 °C in London on August 9 under a settled high-pressure regime with ample sunshine and light winds, supporting the market’s close clustering around those outcomes. Minor differences among 30–32 °C probabilities reflect lingering uncertainty in afternoon cloud development, urban heat-island amplification at official sites, and small variations in steering flow that could allow a modest sea-breeze cooling effect or extra insolation. Historical August baselines near 23 °C underscore the anomalous warmth, while the absence of significant Atlantic fronts keeps resolution thresholds tightly bunched until the final model updates and observational data arrive.
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 9?
Highest temperature in London on August 9?
31°C 36%
30°C 27%
32°C 16%
29°C 9%
NEW
NEW
Aug 9, 2026
26°C or below
<1%
27°C
2%
28°C
4%
29°C
9%
30°C
27%
31°C
36%
32°C
16%
33°C
9%
34°C
2%
35°C
<1%
36°C or higher
<1%
31°C 36%
30°C 27%
32°C 16%
29°C 9%
NEW
NEW
Aug 9, 2026
26°C or below
$68 Vol.
<1%
27°C
$38 Vol.
2%
28°C
$442 Vol.
4%
29°C
$314 Vol.
9%
30°C
$215 Vol.
27%
31°C
$371 Vol.
36%
32°C
$110 Vol.
16%
33°C
$61 Vol.
9%
34°C
$388 Vol.
2%
35°C
$84 Vol.
<1%
36°C or higher
$138 Vol.
<1%
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the London City Airport Station in degrees Celsius on 9 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.Recent Met Office forecasts and ensemble model runs point to peak temperatures of 31–32 °C in London on August 9 under a settled high-pressure regime with ample sunshine and light winds, supporting the market’s close clustering around those outcomes. Minor differences among 30–32 °C probabilities reflect lingering uncertainty in afternoon cloud development, urban heat-island amplification at official sites, and small variations in steering flow that could allow a modest sea-breeze cooling effect or extra insolation. Historical August baselines near 23 °C underscore the anomalous warmth, while the absence of significant Atlantic fronts keeps resolution thresholds tightly bunched until the final model updates and observational data arrive.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the London City Airport Station in degrees Celsius on 9 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.
This market will resolve to the temperature range that contains the highest temperature recorded at the London City Airport Station in degrees Celsius on 9 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 7, 2026, 12:02 AM ET
Volume
$2,230End Date
Aug 9, 2026Market Opened
Aug 7, 2026, 12:02 AM ETResolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the London City Airport Station in degrees Celsius on 9 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.Recent Met Office forecasts and ensemble model runs point to peak temperatures of 31–32 °C in London on August 9 under a settled high-pressure regime with ample sunshine and light winds, supporting the market’s close clustering around those outcomes. Minor differences among 30–32 °C probabilities reflect lingering uncertainty in afternoon cloud development, urban heat-island amplification at official sites, and small variations in steering flow that could allow a modest sea-breeze cooling effect or extra insolation. Historical August baselines near 23 °C underscore the anomalous warmth, while the absence of significant Atlantic fronts keeps resolution thresholds tightly bunched until the final model updates and observational data arrive.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the London City Airport Station in degrees Celsius on 9 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.
This market will resolve to the temperature range that contains the highest temperature recorded at the London City Airport Station in degrees Celsius on 9 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.
Volume
$2,230End Date
Aug 9, 2026Market Opened
Aug 7, 2026, 12:02 AM ETResolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...Recent Met Office forecasts and ensemble model runs point to peak temperatures of 31–32 °C in London on August 9 under a settled high-pressure regime with ample sunshine and light winds, supporting the market’s close clustering around those outcomes. Minor differences among 30–32 °C probabilities reflect lingering uncertainty in afternoon cloud development, urban heat-island amplification at official sites, and small variations in steering flow that could allow a modest sea-breeze cooling effect or extra insolation. Historical August baselines near 23 °C underscore the anomalous warmth, while the absence of significant Atlantic fronts keeps resolution thresholds tightly bunched until the final model updates and observational data arrive.
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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