**Market-implied odds place 23°C and 24°C in a near tie at 33.5% and 34.5%, reflecting tight uncertainty in short-range forecasts for London's maximum temperature on August 28.** Official Met Office guidance indicates a peak near 24°C under mostly cloudy skies with sunny intervals, moderate southwesterly winds of 10–15 mph, and a modest 30% chance of showers. These conditions limit surface heating compared with clearer days, while residual humidity and a weak frontal influence from earlier thunderstorms keep daytime maxima near seasonal norms rather than the warmer values seen mid-month. Ensemble spreads and timing differences in cloud breaks create the narrow 1°C spread between leading outcomes, with higher probabilities for 25°C+ remaining limited by the expected wind and cover. Updated model runs and any morning observations on the 28th will be the next key inputs for traders.
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?
Highest temperature in London on August 28?
24°C 35%
23°C 34%
25°C or higher 16%
22°C 13%
NEW
NEW
Aug 28, 2026
15°C or below
<1%
16°C
<1%
17°C
<1%
18°C
<1%
19°C
<1%
20°C
3%
21°C
5%
22°C
13%
23°C
34%
24°C
35%
25°C or higher
16%
24°C 35%
23°C 34%
25°C or higher 16%
22°C 13%
NEW
NEW
Aug 28, 2026
15°C or below
$289 Vol.
<1%
16°C
$215 Vol.
<1%
17°C
$205 Vol.
<1%
18°C
$44 Vol.
<1%
19°C
$205 Vol.
<1%
20°C
$278 Vol.
3%
21°C
$636 Vol.
5%
22°C
$854 Vol.
13%
23°C
$1,128 Vol.
34%
24°C
$1,161 Vol.
35%
25°C or higher
$755 Vol.
16%
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the London City Airport Station in degrees Celsius on 28 Aug '26.
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-implied odds place 23°C and 24°C in a near tie at 33.5% and 34.5%, reflecting tight uncertainty in short-range forecasts for London's maximum temperature on August 28.** Official Met Office guidance indicates a peak near 24°C under mostly cloudy skies with sunny intervals, moderate southwesterly winds of 10–15 mph, and a modest 30% chance of showers. These conditions limit surface heating compared with clearer days, while residual humidity and a weak frontal influence from earlier thunderstorms keep daytime maxima near seasonal norms rather than the warmer values seen mid-month. Ensemble spreads and timing differences in cloud breaks create the narrow 1°C spread between leading outcomes, with higher probabilities for 25°C+ remaining limited by the expected wind and cover. Updated model runs and any morning observations on the 28th will be the next key inputs for traders.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the London City Airport Station in degrees Celsius on 28 Aug '26.
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.
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
Volume
$5,769End Date
Aug 28, 2026Market Opened
Aug 26, 2026, 12:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=eglcResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the London City Airport Station in degrees Celsius on 28 Aug '26.
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-implied odds place 23°C and 24°C in a near tie at 33.5% and 34.5%, reflecting tight uncertainty in short-range forecasts for London's maximum temperature on August 28.** Official Met Office guidance indicates a peak near 24°C under mostly cloudy skies with sunny intervals, moderate southwesterly winds of 10–15 mph, and a modest 30% chance of showers. These conditions limit surface heating compared with clearer days, while residual humidity and a weak frontal influence from earlier thunderstorms keep daytime maxima near seasonal norms rather than the warmer values seen mid-month. Ensemble spreads and timing differences in cloud breaks create the narrow 1°C spread between leading outcomes, with higher probabilities for 25°C+ remaining limited by the expected wind and cover. Updated model runs and any morning observations on the 28th will be the next key inputs for traders.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the London City Airport Station in degrees Celsius on 28 Aug '26.
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.
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.
Volume
$5,769End Date
Aug 28, 2026Market Opened
Aug 26, 2026, 12:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=eglcResolver
0x69c47De9D...**Market-implied odds place 23°C and 24°C in a near tie at 33.5% and 34.5%, reflecting tight uncertainty in short-range forecasts for London's maximum temperature on August 28.** Official Met Office guidance indicates a peak near 24°C under mostly cloudy skies with sunny intervals, moderate southwesterly winds of 10–15 mph, and a modest 30% chance of showers. These conditions limit surface heating compared with clearer days, while residual humidity and a weak frontal influence from earlier thunderstorms keep daytime maxima near seasonal norms rather than the warmer values seen mid-month. Ensemble spreads and timing differences in cloud breaks create the narrow 1°C spread between leading outcomes, with higher probabilities for 25°C+ remaining limited by the expected wind and cover. Updated model runs and any morning observations on the 28th will be the next key inputs for traders.
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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