Recent forecast model consensus from the Met Office and others centers on a peak of 25–27°C in London on August 26 amid a shift from high pressure to an incoming low-pressure system from the southwest. This pattern introduces increasing humidity, scattered showers, and possible thunderstorms that could limit daytime heating through cloud cover and evaporative cooling, while light southwesterly winds offer modest advection of warmer air. The tight clustering of market-implied odds around 25–27°C reflects model spread on exact timing and intensity of instability, typical for late-summer transitions where small differences in convective activity determine whether maxima reach the upper or lower end of the range. Updated model runs and official guidance over the next 48 hours will likely refine these probabilities.
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?
25°C 26%
26°C 25%
27°C 20%
24°C 8%
22°C or below
2%
23°C
8%
24°C
8%
25°C
26%
26°C
25%
27°C
20%
28°C
8%
29°C
4%
30°C
<1%
31°C
<1%
32°C or higher
<1%
25°C 26%
26°C 25%
27°C 20%
24°C 8%
22°C or below
2%
23°C
8%
24°C
8%
25°C
26%
26°C
25%
27°C
20%
28°C
8%
29°C
4%
30°C
<1%
31°C
<1%
32°C or higher
<1%
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
Resolution Source
https://www.weather.gov/wrh/timeseries?site=eglcResolver
0x69c47De9D...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.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=eglcResolver
0x69c47De9D...Recent forecast model consensus from the Met Office and others centers on a peak of 25–27°C in London on August 26 amid a shift from high pressure to an incoming low-pressure system from the southwest. This pattern introduces increasing humidity, scattered showers, and possible thunderstorms that could limit daytime heating through cloud cover and evaporative cooling, while light southwesterly winds offer modest advection of warmer air. The tight clustering of market-implied odds around 25–27°C reflects model spread on exact timing and intensity of instability, typical for late-summer transitions where small differences in convective activity determine whether maxima reach the upper or lower end of the range. Updated model runs and official guidance over the next 48 hours will likely refine these probabilities.
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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