Recent Met Office and ensemble forecasts indicate unsettled Atlantic-influenced conditions for London on August 28, with southwest winds, variable cloud, and scattered showers expected to limit insolation and cap daytime maxima near 22–24 °C. This follows a cooler trend after earlier August heat, with model runs showing modest spread in peak timing due to shower placement and cloud breaks. The tight clustering of market-implied odds around 22–23 °C (roughly 60 % combined) reflects this narrow consensus range, while lower probabilities for 24 °C or above capture residual uncertainty if breaks allow stronger heating. Official resolution will hinge on the highest 24-hour reading at the designated station.
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 32%
22°C 31%
24°C 18%
21°C 15%
15°C or below
<1%
16°C
<1%
17°C
<1%
18°C
3%
19°C
2%
20°C
8%
21°C
15%
22°C
31%
23°C
32%
24°C
18%
25°C or higher
4%
23°C 32%
22°C 31%
24°C 18%
21°C 15%
15°C or below
<1%
16°C
<1%
17°C
<1%
18°C
3%
19°C
2%
20°C
8%
21°C
15%
22°C
31%
23°C
32%
24°C
18%
25°C or higher
4%
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 and ensemble forecasts indicate unsettled Atlantic-influenced conditions for London on August 28, with southwest winds, variable cloud, and scattered showers expected to limit insolation and cap daytime maxima near 22–24 °C. This follows a cooler trend after earlier August heat, with model runs showing modest spread in peak timing due to shower placement and cloud breaks. The tight clustering of market-implied odds around 22–23 °C (roughly 60 % combined) reflects this narrow consensus range, while lower probabilities for 24 °C or above capture residual uncertainty if breaks allow stronger heating. Official resolution will hinge on the highest 24-hour reading at the designated station.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated



Beware of external links.
Beware of external links.
Frequently Asked Questions