Forecast uncertainty around cloud cover, timing of any showers, and easterly advection is shaping trader views on London's August 25 maximum, with models showing a tight range near 22–25 °C. Recent Met Office and ECMWF guidance indicate partly cloudy conditions with possible light rain developing later in the day, which would cap peak temperatures by limiting surface heating and enhancing evaporative cooling. Minor differences between 22 °C and 24 °C outcomes hinge on exact cloud fraction, boundary-layer mixing depth, and whether any showers arrive before or after the diurnal maximum, factors that can shift readings by 1–2 °C at urban stations. Historical late-August baselines for London sit near 21–23 °C, providing context for the narrow spread. Updated model runs and Met Office briefings over the next 24–48 hours will likely drive the largest market moves.
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 25?
Highest temperature in London on August 25?
22°C 32%
23°C 24%
21°C 17%
24°C 13%
NEW
NEW
Aug 25, 2026
17°C or below
<1%
18°C
<1%
19°C
3%
20°C
9%
21°C
17%
22°C
32%
23°C
24%
24°C
13%
25°C
8%
26°C
4%
27°C or higher
<1%
22°C 32%
23°C 24%
21°C 17%
24°C 13%
NEW
NEW
Aug 25, 2026
17°C or below
$67 Vol.
<1%
18°C
$68 Vol.
<1%
19°C
$335 Vol.
3%
20°C
$343 Vol.
9%
21°C
$297 Vol.
17%
22°C
$217 Vol.
32%
23°C
$754 Vol.
24%
24°C
$1,815 Vol.
13%
25°C
$242 Vol.
8%
26°C
$98 Vol.
4%
27°C or higher
$62 Vol.
<1%
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 25 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
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.Forecast uncertainty around cloud cover, timing of any showers, and easterly advection is shaping trader views on London's August 25 maximum, with models showing a tight range near 22–25 °C. Recent Met Office and ECMWF guidance indicate partly cloudy conditions with possible light rain developing later in the day, which would cap peak temperatures by limiting surface heating and enhancing evaporative cooling. Minor differences between 22 °C and 24 °C outcomes hinge on exact cloud fraction, boundary-layer mixing depth, and whether any showers arrive before or after the diurnal maximum, factors that can shift readings by 1–2 °C at urban stations. Historical late-August baselines for London sit near 21–23 °C, providing context for the narrow spread. Updated model runs and Met Office briefings over the next 24–48 hours will likely drive the largest market moves.
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 25 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
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
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 23, 2026, 12:55 AM ET
Volume
$4,298End Date
Aug 25, 2026Market Opened
Aug 23, 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 25 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
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.Forecast uncertainty around cloud cover, timing of any showers, and easterly advection is shaping trader views on London's August 25 maximum, with models showing a tight range near 22–25 °C. Recent Met Office and ECMWF guidance indicate partly cloudy conditions with possible light rain developing later in the day, which would cap peak temperatures by limiting surface heating and enhancing evaporative cooling. Minor differences between 22 °C and 24 °C outcomes hinge on exact cloud fraction, boundary-layer mixing depth, and whether any showers arrive before or after the diurnal maximum, factors that can shift readings by 1–2 °C at urban stations. Historical late-August baselines for London sit near 21–23 °C, providing context for the narrow spread. Updated model runs and Met Office briefings over the next 24–48 hours will likely drive the largest market moves.
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 25 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
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
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
$4,298End Date
Aug 25, 2026Market Opened
Aug 23, 2026, 12:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=eglcResolver
0x69c47De9D...Forecast uncertainty around cloud cover, timing of any showers, and easterly advection is shaping trader views on London's August 25 maximum, with models showing a tight range near 22–25 °C. Recent Met Office and ECMWF guidance indicate partly cloudy conditions with possible light rain developing later in the day, which would cap peak temperatures by limiting surface heating and enhancing evaporative cooling. Minor differences between 22 °C and 24 °C outcomes hinge on exact cloud fraction, boundary-layer mixing depth, and whether any showers arrive before or after the diurnal maximum, factors that can shift readings by 1–2 °C at urban stations. Historical late-August baselines for London sit near 21–23 °C, providing context for the narrow spread. Updated model runs and Met Office briefings over the next 24–48 hours will likely drive the largest market moves.
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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