Official Met Office forecasts project a London maximum of 24°C on August 27, driven by a shift from today's warm, humid southerly flow (with peaks near 28°C) to increased cloud cover, showers, and a cooler air mass as a frontal system moves through. This limits solar heating and favors afternoon highs clustering around 24–25°C, consistent with the market's leading implied probabilities. Regional guidance notes remaining warmth but emphasizes unsettled conditions that suppress temperatures relative to seasonal norms, with model consensus showing modest uncertainty around peak values depending on exact rainfall timing and wind shifts. Traders appear to weigh these near-term observational updates heavily given the short forecast horizon.
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 27?
25°C 40%
24°C 30%
26°C 16%
23°C 12%
18°C or below
<1%
19°C
<1%
20°C
<1%
21°C
<1%
22°C
4%
23°C
12%
24°C
30%
25°C
40%
26°C
16%
27°C
4%
28°C or higher
1%
25°C 40%
24°C 30%
26°C 16%
23°C 12%
18°C or below
<1%
19°C
<1%
20°C
<1%
21°C
<1%
22°C
4%
23°C
12%
24°C
30%
25°C
40%
26°C
16%
27°C
4%
28°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 25, 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...Official Met Office forecasts project a London maximum of 24°C on August 27, driven by a shift from today's warm, humid southerly flow (with peaks near 28°C) to increased cloud cover, showers, and a cooler air mass as a frontal system moves through. This limits solar heating and favors afternoon highs clustering around 24–25°C, consistent with the market's leading implied probabilities. Regional guidance notes remaining warmth but emphasizes unsettled conditions that suppress temperatures relative to seasonal norms, with model consensus showing modest uncertainty around peak values depending on exact rainfall timing and wind shifts. Traders appear to weigh these near-term observational updates heavily given the short forecast horizon.
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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