Recent Met Office guidance and ensemble model consensus point to a Friday peak of 23–24 °C in London under mostly cloudy skies and a moderate southwesterly flow. Lingering moisture and residual cloud from Thursday’s thundery front are suppressing insolation and limiting diurnal warming, while lighter winds prevent rapid mixing of warmer air aloft. The near-even split between the 23 °C and 24 °C contracts reflects small differences in forecast cloud timing and boundary-layer mixing across high-resolution runs, with limited upside risk for 25 °C or higher given the stable post-frontal airmass. Updated short-range guidance and observed trends through tomorrow morning will be the key market-moving data.
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 28?
23°C 34%
24°C 33%
25°C or higher 18%
22°C 13%
15°C or below
<1%
16°C
<1%
17°C
<1%
18°C
<1%
19°C
1%
20°C
3%
21°C
6%
22°C
13%
23°C
34%
24°C
33%
25°C or higher
18%
23°C 34%
24°C 33%
25°C or higher 18%
22°C 13%
15°C or below
<1%
16°C
<1%
17°C
<1%
18°C
<1%
19°C
1%
20°C
3%
21°C
6%
22°C
13%
23°C
34%
24°C
33%
25°C or higher
18%
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
If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
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 26, 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
If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
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 Met Office guidance and ensemble model consensus point to a Friday peak of 23–24 °C in London under mostly cloudy skies and a moderate southwesterly flow. Lingering moisture and residual cloud from Thursday’s thundery front are suppressing insolation and limiting diurnal warming, while lighter winds prevent rapid mixing of warmer air aloft. The near-even split between the 23 °C and 24 °C contracts reflects small differences in forecast cloud timing and boundary-layer mixing across high-resolution runs, with limited upside risk for 25 °C or higher given the stable post-frontal airmass. Updated short-range guidance and observed trends through tomorrow morning will be the key market-moving data.
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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