Official observations from London-area stations, including Heathrow, recorded a daily maximum of 24°C on August 25, 2026, under partly cloudy skies with light easterly winds around 10-15 km/h. This aligned with Met Office and model consensus showing modest afternoon warming from overnight lows near 15°C, influenced by stable high pressure and Atlantic air masses that suppressed stronger heating seen earlier in the month. The market's near-certain 24°C outcome reflects this verified peak matching resolution criteria precisely. A late-day surge from unexpected clear skies or measurement discrepancies at secondary sites could have altered it, though current data confirm stability around the threshold.
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 25?
Highest temperature in London on August 25?
24°C 100.0%
17°C or below <1%
18°C <1%
19°C <1%
$139,423 Vol.
$139,423 Vol.
Aug 25, 2026
17°C or below
No
18°C
No
19°C
No
20°C
No
21°C
No
22°C
No
23°C
No
24°C
Yes
25°C
No
26°C
No
27°C or higher
No
24°C 100.0%
17°C or below <1%
18°C <1%
19°C <1%
$139,423 Vol.
$139,423 Vol.
Aug 25, 2026
17°C or below
$538 Vol.
No
18°C
$323 Vol.
No
19°C
$1,611 Vol.
No
20°C
$5,635 Vol.
No
21°C
$10,486 Vol.
No
22°C
$18,582 Vol.
No
23°C
$36,523 Vol.
No
24°C
$26,427 Vol.
Yes
25°C
$20,632 Vol.
No
26°C
$11,448 Vol.
No
27°C or higher
$7,216 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 25 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 observations from London-area stations, including Heathrow, recorded a daily maximum of 24°C on August 25, 2026, under partly cloudy skies with light easterly winds around 10-15 km/h. This aligned with Met Office and model consensus showing modest afternoon warming from overnight lows near 15°C, influenced by stable high pressure and Atlantic air masses that suppressed stronger heating seen earlier in the month. The market's near-certain 24°C outcome reflects this verified peak matching resolution criteria precisely. A late-day surge from unexpected clear skies or measurement discrepancies at secondary sites could have altered it, though current data confirm stability around the threshold.
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 25 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 23, 2026, 12:55 AM ET
Volume
$139,423End Date
Aug 25, 2026Market Opened
Aug 23, 2026, 12:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=eglcResolver
0x69c47De9D...Outcome proposed: Yes
No dispute
Final outcome: Yes
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 25 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 observations from London-area stations, including Heathrow, recorded a daily maximum of 24°C on August 25, 2026, under partly cloudy skies with light easterly winds around 10-15 km/h. This aligned with Met Office and model consensus showing modest afternoon warming from overnight lows near 15°C, influenced by stable high pressure and Atlantic air masses that suppressed stronger heating seen earlier in the month. The market's near-certain 24°C outcome reflects this verified peak matching resolution criteria precisely. A late-day surge from unexpected clear skies or measurement discrepancies at secondary sites could have altered it, though current data confirm stability around the threshold.
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 25 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
$139,423End Date
Aug 25, 2026Market Opened
Aug 23, 2026, 12:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=eglcResolver
0x69c47De9D...Outcome proposed: Yes
No dispute
Final outcome: Yes
Official observations from London-area stations, including Heathrow, recorded a daily maximum of 24°C on August 25, 2026, under partly cloudy skies with light easterly winds around 10-15 km/h. This aligned with Met Office and model consensus showing modest afternoon warming from overnight lows near 15°C, influenced by stable high pressure and Atlantic air masses that suppressed stronger heating seen earlier in the month. The market's near-certain 24°C outcome reflects this verified peak matching resolution criteria precisely. A late-day surge from unexpected clear skies or measurement discrepancies at secondary sites could have altered it, though current data confirm stability around the threshold.
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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