Recent Met Office guidance positions London’s August 16 maximum at 28 °C under sunny intervals and light winds, following the intense heatwave that delivered 34 °C on the 14th and 27 °C on the 15th. Persistent but weakening high pressure and residual warm advection continue to support above-average readings, yet increasing model spread and the likelihood of more cloud cover or a modest northerly shift introduce uncertainty around the precise peak. Official resolution uses the highest verified temperature among London stations (typically Heathrow or Kew Gardens), where small differences in sheltering and urban heat-island effects can shift the recorded value by 1–2 °C. Trader consensus clustering at 26–27 °C therefore reflects the cooling trajectory and acknowledged forecast variability rather than any single model run.
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 16?
Highest temperature in London on August 16?
26°C 42%
27°C 29%
25°C 20%
28°C 6%
NEW
$14,505 Vol.
NEW
$14,505 Vol.
Aug 16, 2026
23°C or below
3%
24°C
3%
25°C
20%
26°C
42%
27°C
29%
28°C
6%
29°C
3%
30°C
<1%
31°C
<1%
32°C
<1%
33°C or higher
<1%
26°C 42%
27°C 29%
25°C 20%
28°C 6%
NEW
$14,505 Vol.
NEW
$14,505 Vol.
Aug 16, 2026
23°C or below
$1,565 Vol.
3%
24°C
$1,230 Vol.
3%
25°C
$4,214 Vol.
20%
26°C
$1,946 Vol.
42%
27°C
$2,188 Vol.
29%
28°C
$782 Vol.
6%
29°C
$599 Vol.
3%
30°C
$775 Vol.
<1%
31°C
$301 Vol.
<1%
32°C
$452 Vol.
<1%
33°C or higher
$452 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 16 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 guidance positions London’s August 16 maximum at 28 °C under sunny intervals and light winds, following the intense heatwave that delivered 34 °C on the 14th and 27 °C on the 15th. Persistent but weakening high pressure and residual warm advection continue to support above-average readings, yet increasing model spread and the likelihood of more cloud cover or a modest northerly shift introduce uncertainty around the precise peak. Official resolution uses the highest verified temperature among London stations (typically Heathrow or Kew Gardens), where small differences in sheltering and urban heat-island effects can shift the recorded value by 1–2 °C. Trader consensus clustering at 26–27 °C therefore reflects the cooling trajectory and acknowledged forecast variability rather than any single model run.
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 16 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 16 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 14, 2026, 12:55 AM ET
Volume
$14,505End Date
Aug 16, 2026Market Opened
Aug 14, 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 16 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 guidance positions London’s August 16 maximum at 28 °C under sunny intervals and light winds, following the intense heatwave that delivered 34 °C on the 14th and 27 °C on the 15th. Persistent but weakening high pressure and residual warm advection continue to support above-average readings, yet increasing model spread and the likelihood of more cloud cover or a modest northerly shift introduce uncertainty around the precise peak. Official resolution uses the highest verified temperature among London stations (typically Heathrow or Kew Gardens), where small differences in sheltering and urban heat-island effects can shift the recorded value by 1–2 °C. Trader consensus clustering at 26–27 °C therefore reflects the cooling trajectory and acknowledged forecast variability rather than any single model run.
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 16 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 16 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
$14,505End Date
Aug 16, 2026Market Opened
Aug 14, 2026, 12:55 AM ETResolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...Recent Met Office guidance positions London’s August 16 maximum at 28 °C under sunny intervals and light winds, following the intense heatwave that delivered 34 °C on the 14th and 27 °C on the 15th. Persistent but weakening high pressure and residual warm advection continue to support above-average readings, yet increasing model spread and the likelihood of more cloud cover or a modest northerly shift introduce uncertainty around the precise peak. Official resolution uses the highest verified temperature among London stations (typically Heathrow or Kew Gardens), where small differences in sheltering and urban heat-island effects can shift the recorded value by 1–2 °C. Trader consensus clustering at 26–27 °C therefore reflects the cooling trajectory and acknowledged forecast variability rather than any single model run.
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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