Traders see the 23–24°C outcomes as most probable because official Met Office guidance and multiple forecast models converge on a daytime maximum in that narrow range for London on 28 August, with a warm but breezy southwest flow and variable cloud cover limiting strong insolation. Recent passage of a thundery front on the 27th has introduced cooler, moister air and increased wind speeds (often 10–15 mph), which enhances mixing and caps afternoon warming while also reducing the chance of prolonged clear skies. Light showers or increased cloud in the afternoon could shave 1°C off the peak or allow brief breaks that push readings slightly higher, explaining the near-even split between 23°C and 24°C plus modest probability on 25°C+. Lower outcomes remain unlikely given the established warm advection and lack of strong cooling mechanisms in the short-range guidance.
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 37%
23°C 32%
25°C or higher 14%
22°C 13%
NEW
$10,479 Vol.
NEW
$10,479 Vol.
Aug 28, 2026
15°C or below
<1%
16°C
<1%
17°C
<1%
18°C
<1%
19°C
<1%
20°C
2%
21°C
4%
22°C
13%
23°C
32%
24°C
37%
25°C or higher
14%
24°C 37%
23°C 32%
25°C or higher 14%
22°C 13%
NEW
$10,479 Vol.
NEW
$10,479 Vol.
Aug 28, 2026
15°C or below
$289 Vol.
<1%
16°C
$215 Vol.
<1%
17°C
$205 Vol.
<1%
18°C
$240 Vol.
<1%
19°C
$481 Vol.
<1%
20°C
$620 Vol.
2%
21°C
$1,003 Vol.
4%
22°C
$1,668 Vol.
13%
23°C
$1,692 Vol.
32%
24°C
$2,639 Vol.
37%
25°C or higher
$1,425 Vol.
14%
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.Traders see the 23–24°C outcomes as most probable because official Met Office guidance and multiple forecast models converge on a daytime maximum in that narrow range for London on 28 August, with a warm but breezy southwest flow and variable cloud cover limiting strong insolation. Recent passage of a thundery front on the 27th has introduced cooler, moister air and increased wind speeds (often 10–15 mph), which enhances mixing and caps afternoon warming while also reducing the chance of prolonged clear skies. Light showers or increased cloud in the afternoon could shave 1°C off the peak or allow brief breaks that push readings slightly higher, explaining the near-even split between 23°C and 24°C plus modest probability on 25°C+. Lower outcomes remain unlikely given the established warm advection and lack of strong cooling mechanisms in the short-range guidance.
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
$10,479End 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.Traders see the 23–24°C outcomes as most probable because official Met Office guidance and multiple forecast models converge on a daytime maximum in that narrow range for London on 28 August, with a warm but breezy southwest flow and variable cloud cover limiting strong insolation. Recent passage of a thundery front on the 27th has introduced cooler, moister air and increased wind speeds (often 10–15 mph), which enhances mixing and caps afternoon warming while also reducing the chance of prolonged clear skies. Light showers or increased cloud in the afternoon could shave 1°C off the peak or allow brief breaks that push readings slightly higher, explaining the near-even split between 23°C and 24°C plus modest probability on 25°C+. Lower outcomes remain unlikely given the established warm advection and lack of strong cooling mechanisms in the short-range guidance.
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
$10,479End Date
Aug 28, 2026Market Opened
Aug 26, 2026, 12:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=eglcResolver
0x69c47De9D...Traders see the 23–24°C outcomes as most probable because official Met Office guidance and multiple forecast models converge on a daytime maximum in that narrow range for London on 28 August, with a warm but breezy southwest flow and variable cloud cover limiting strong insolation. Recent passage of a thundery front on the 27th has introduced cooler, moister air and increased wind speeds (often 10–15 mph), which enhances mixing and caps afternoon warming while also reducing the chance of prolonged clear skies. Light showers or increased cloud in the afternoon could shave 1°C off the peak or allow brief breaks that push readings slightly higher, explaining the near-even split between 23°C and 24°C plus modest probability on 25°C+. Lower outcomes remain unlikely given the established warm advection and lack of strong cooling mechanisms in the short-range guidance.
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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