Current forecasts from the Met Office and ensemble models indicate a highest temperature in London on August 29 most likely between 20–22°C, driven by an unsettled Atlantic weather pattern bringing persistent cloud cover, widespread rain, and southwesterly winds. These conditions limit solar heating and promote evaporative cooling, keeping daytime maxima near or slightly below seasonal averages for late August. Model consensus shows afternoon peaks around 21–22°C under broken cloud, with lower values possible if rainfall is heavier or more prolonged. Trader sentiment clusters tightly around these outcomes because short-range guidance has stabilized, though minor shifts in frontal timing or cloud thickness could still differentiate the exact high by 1–2°C before resolution.
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 29?
21°C 33%
20°C 26%
22°C 24%
23°C 8%
16°C or below
<1%
17°C
1%
18°C
3%
19°C
7%
20°C
26%
21°C
33%
22°C
24%
23°C
8%
24°C
2%
25°C
1%
26°C or higher
<1%
21°C 33%
20°C 26%
22°C 24%
23°C 8%
16°C or below
<1%
17°C
1%
18°C
3%
19°C
7%
20°C
26%
21°C
33%
22°C
24%
23°C
8%
24°C
2%
25°C
1%
26°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
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 27, 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...Current forecasts from the Met Office and ensemble models indicate a highest temperature in London on August 29 most likely between 20–22°C, driven by an unsettled Atlantic weather pattern bringing persistent cloud cover, widespread rain, and southwesterly winds. These conditions limit solar heating and promote evaporative cooling, keeping daytime maxima near or slightly below seasonal averages for late August. Model consensus shows afternoon peaks around 21–22°C under broken cloud, with lower values possible if rainfall is heavier or more prolonged. Trader sentiment clusters tightly around these outcomes because short-range guidance has stabilized, though minor shifts in frontal timing or cloud thickness could still differentiate the exact high by 1–2°C before resolution.
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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