Official Met Office station data and provisional observations confirmed a maximum of 34°C in London on August 14, 2026, under persistent high pressure and southerly advection of warm air that produced clear skies and strong solar heating across southeast England. This outcome aligns with model consensus for afternoon peaks near or slightly above seasonal norms, exceeding August climatological averages by roughly 8–10°C while remaining below the more intense heat recorded earlier in the week. Market-implied odds reached 100% on 34°C once verified readings eliminated uncertainty around exact station maxima. Minor revisions in post-analysis quality control or boundary-layer adjustments represent the only realistic pathways that could alter the resolved value.
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?
Highest temperature in London on August 14?
34°C 100.0%
29°C or below <1%
30°C <1%
31°C <1%
$138,926 Vol.
$138,926 Vol.
Aug 14, 2026
29°C or below
No
30°C
No
31°C
No
32°C
No
33°C
No
34°C
Yes
35°C
No
36°C
No
37°C
No
38°C
No
39°C or higher
No
34°C 100.0%
29°C or below <1%
30°C <1%
31°C <1%
$138,926 Vol.
$138,926 Vol.
Aug 14, 2026
29°C or below
$3,100 Vol.
No
30°C
$5,259 Vol.
No
31°C
$17,998 Vol.
No
32°C
$17,544 Vol.
No
33°C
$23,627 Vol.
No
34°C
$26,482 Vol.
Yes
35°C
$30,076 Vol.
No
36°C
$11,863 Vol.
No
37°C
$1,151 Vol.
No
38°C
$760 Vol.
No
39°C or higher
$1,066 Vol.
No
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 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.Official Met Office station data and provisional observations confirmed a maximum of 34°C in London on August 14, 2026, under persistent high pressure and southerly advection of warm air that produced clear skies and strong solar heating across southeast England. This outcome aligns with model consensus for afternoon peaks near or slightly above seasonal norms, exceeding August climatological averages by roughly 8–10°C while remaining below the more intense heat recorded earlier in the week. Market-implied odds reached 100% on 34°C once verified readings eliminated uncertainty around exact station maxima. Minor revisions in post-analysis quality control or boundary-layer adjustments represent the only realistic pathways that could alter the resolved value.
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 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.
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
Volume
$138,926End Date
Aug 14, 2026Market Opened
Aug 12, 2026, 1:02 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 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 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.Official Met Office station data and provisional observations confirmed a maximum of 34°C in London on August 14, 2026, under persistent high pressure and southerly advection of warm air that produced clear skies and strong solar heating across southeast England. This outcome aligns with model consensus for afternoon peaks near or slightly above seasonal norms, exceeding August climatological averages by roughly 8–10°C while remaining below the more intense heat recorded earlier in the week. Market-implied odds reached 100% on 34°C once verified readings eliminated uncertainty around exact station maxima. Minor revisions in post-analysis quality control or boundary-layer adjustments represent the only realistic pathways that could alter the resolved value.
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 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.
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.
Volume
$138,926End Date
Aug 14, 2026Market Opened
Aug 12, 2026, 1:02 AM ETResolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official Met Office station data and provisional observations confirmed a maximum of 34°C in London on August 14, 2026, under persistent high pressure and southerly advection of warm air that produced clear skies and strong solar heating across southeast England. This outcome aligns with model consensus for afternoon peaks near or slightly above seasonal norms, exceeding August climatological averages by roughly 8–10°C while remaining below the more intense heat recorded earlier in the week. Market-implied odds reached 100% on 34°C once verified readings eliminated uncertainty around exact station maxima. Minor revisions in post-analysis quality control or boundary-layer adjustments represent the only realistic pathways that could alter the resolved value.
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