Official Met Office forecasts for London on August 15 point to a daytime maximum of 26°C under largely fine conditions with sunny intervals, following a period of extreme heat earlier in the week that produced peaks near 38°C. This cooling trend, driven by shifting pressure patterns and reduced advection of warm air masses, aligns with model consensus and historical August averages around 22–24°C. Traders have converged on the 26°C outcome because it matches the authoritative daily maximum projection from the UK’s national meteorological service, with minimal divergence across ensemble runs. Uncertainties remain around localized urban heat island effects or slight forecast revisions from new observational data, which could nudge the recorded high by 1–2°C if conditions deviate from current guidance.
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 15?
Highest temperature in London on August 15?
26°C 100.0%
20°C or below <1%
21°C <1%
22°C <1%
$170,172 Vol.
$170,172 Vol.
Aug 15, 2026
20°C or below
<1%
21°C
<1%
22°C
<1%
23°C
<1%
24°C
<1%
25°C
<1%
26°C
100%
27°C
<1%
28°C
<1%
29°C
<1%
30°C or higher
<1%
26°C 100.0%
20°C or below <1%
21°C <1%
22°C <1%
$170,172 Vol.
$170,172 Vol.
Aug 15, 2026
20°C or below
$3,481 Vol.
<1%
21°C
$636 Vol.
<1%
22°C
$1,461 Vol.
<1%
23°C
$4,957 Vol.
<1%
24°C
$15,107 Vol.
<1%
25°C
$39,524 Vol.
<1%
26°C
$31,494 Vol.
100%
27°C
$25,110 Vol.
<1%
28°C
$17,081 Vol.
<1%
29°C
$17,827 Vol.
<1%
30°C or higher
$13,493 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 15 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.Official Met Office forecasts for London on August 15 point to a daytime maximum of 26°C under largely fine conditions with sunny intervals, following a period of extreme heat earlier in the week that produced peaks near 38°C. This cooling trend, driven by shifting pressure patterns and reduced advection of warm air masses, aligns with model consensus and historical August averages around 22–24°C. Traders have converged on the 26°C outcome because it matches the authoritative daily maximum projection from the UK’s national meteorological service, with minimal divergence across ensemble runs. Uncertainties remain around localized urban heat island effects or slight forecast revisions from new observational data, which could nudge the recorded high by 1–2°C if conditions deviate from current guidance.
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 15 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 15 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 13, 2026, 12:55 AM ET
Volume
$170,172End Date
Aug 15, 2026Market Opened
Aug 13, 2026, 12:55 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 15 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.Official Met Office forecasts for London on August 15 point to a daytime maximum of 26°C under largely fine conditions with sunny intervals, following a period of extreme heat earlier in the week that produced peaks near 38°C. This cooling trend, driven by shifting pressure patterns and reduced advection of warm air masses, aligns with model consensus and historical August averages around 22–24°C. Traders have converged on the 26°C outcome because it matches the authoritative daily maximum projection from the UK’s national meteorological service, with minimal divergence across ensemble runs. Uncertainties remain around localized urban heat island effects or slight forecast revisions from new observational data, which could nudge the recorded high by 1–2°C if conditions deviate from current guidance.
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 15 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 15 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
$170,172End Date
Aug 15, 2026Market Opened
Aug 13, 2026, 12:55 AM ETResolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...Official Met Office forecasts for London on August 15 point to a daytime maximum of 26°C under largely fine conditions with sunny intervals, following a period of extreme heat earlier in the week that produced peaks near 38°C. This cooling trend, driven by shifting pressure patterns and reduced advection of warm air masses, aligns with model consensus and historical August averages around 22–24°C. Traders have converged on the 26°C outcome because it matches the authoritative daily maximum projection from the UK’s national meteorological service, with minimal divergence across ensemble runs. Uncertainties remain around localized urban heat island effects or slight forecast revisions from new observational data, which could nudge the recorded high by 1–2°C if conditions deviate from current guidance.
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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