Official Met Office forecasts and real-time observations from stations such as London Heathrow indicate a daytime maximum near 26°C on August 26, 2026, driven by warm, humid air masses and limited cloud cover during peak heating hours, exceeding the 1991–2020 average high of 22.4°C. Hourly data and numerical weather prediction consensus supported this peak without significant model divergence, aligning trader-implied odds at 100% for exactly 26°C as the resolution threshold. Recent upstream conditions, including mild overnight minima around 18–20°C and moderate easterly flow, reinforced the outcome. A late surge in convective activity or station-specific microclimate effects could still shift the official reading, though current evidence makes substantial deviation unlikely before close of play.
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 26?
Highest temperature in London on August 26?
26°C 100.0%
22°C or below <1%
23°C <1%
24°C <1%
$112,089 Vol.
$112,089 Vol.
Aug 26, 2026
22°C or below
No
23°C
No
24°C
No
25°C
No
26°C
Yes
27°C
No
28°C
No
29°C
No
30°C
No
31°C
No
32°C or higher
No
26°C 100.0%
22°C or below <1%
23°C <1%
24°C <1%
$112,089 Vol.
$112,089 Vol.
Aug 26, 2026
22°C or below
$7,933 Vol.
No
23°C
$16,034 Vol.
No
24°C
$15,918 Vol.
No
25°C
$21,031 Vol.
No
26°C
$21,024 Vol.
Yes
27°C
$13,582 Vol.
No
28°C
$9,373 Vol.
No
29°C
$3,644 Vol.
No
30°C
$2,054 Vol.
No
31°C
$451 Vol.
No
32°C or higher
$1,045 Vol.
No
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the London City Airport Station in degrees Celsius on 26 Aug '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=eglc
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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 and real-time observations from stations such as London Heathrow indicate a daytime maximum near 26°C on August 26, 2026, driven by warm, humid air masses and limited cloud cover during peak heating hours, exceeding the 1991–2020 average high of 22.4°C. Hourly data and numerical weather prediction consensus supported this peak without significant model divergence, aligning trader-implied odds at 100% for exactly 26°C as the resolution threshold. Recent upstream conditions, including mild overnight minima around 18–20°C and moderate easterly flow, reinforced the outcome. A late surge in convective activity or station-specific microclimate effects could still shift the official reading, though current evidence makes substantial deviation unlikely before close of play.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the London City Airport Station in degrees Celsius on 26 Aug '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=eglc
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=eglc
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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 24, 2026, 12:55 AM ET
Volume
$112,089End Date
Aug 26, 2026Market Opened
Aug 24, 2026, 12:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=eglcResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the London City Airport Station in degrees Celsius on 26 Aug '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=eglc
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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 and real-time observations from stations such as London Heathrow indicate a daytime maximum near 26°C on August 26, 2026, driven by warm, humid air masses and limited cloud cover during peak heating hours, exceeding the 1991–2020 average high of 22.4°C. Hourly data and numerical weather prediction consensus supported this peak without significant model divergence, aligning trader-implied odds at 100% for exactly 26°C as the resolution threshold. Recent upstream conditions, including mild overnight minima around 18–20°C and moderate easterly flow, reinforced the outcome. A late surge in convective activity or station-specific microclimate effects could still shift the official reading, though current evidence makes substantial deviation unlikely before close of play.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the London City Airport Station in degrees Celsius on 26 Aug '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=eglc
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=eglc
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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
$112,089End Date
Aug 26, 2026Market Opened
Aug 24, 2026, 12:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=eglcResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official Met Office forecasts and real-time observations from stations such as London Heathrow indicate a daytime maximum near 26°C on August 26, 2026, driven by warm, humid air masses and limited cloud cover during peak heating hours, exceeding the 1991–2020 average high of 22.4°C. Hourly data and numerical weather prediction consensus supported this peak without significant model divergence, aligning trader-implied odds at 100% for exactly 26°C as the resolution threshold. Recent upstream conditions, including mild overnight minima around 18–20°C and moderate easterly flow, reinforced the outcome. A late surge in convective activity or station-specific microclimate effects could still shift the official reading, though current evidence makes substantial deviation unlikely before close of play.
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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