Current forecasts from the Met Office and other models indicate a continuation of above-average warmth across southern England, with nighttime minima for London on August 13 likely holding near 19–21°C amid high pressure, light winds, and limited cloud cover that reduces radiative cooling. This setup follows a recent heat spike and aligns with the market's tight clustering around 18–20°C outcomes, where traders weigh ensemble guidance showing modest variability in boundary-layer mixing and urban heat retention. Key upcoming updates include refreshed ECMWF and UKMO runs that could refine dew-point and wind forecasts, while historical August lows average closer to 14°C, underscoring how persistent anticyclonic conditions are elevating probabilities for the warmer end of the distribution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in London on August 13?
Lowest temperature in London on August 13?
19°C 39%
20°C 33%
18°C 16%
17°C 10%
NEW
NEW
Aug 13, 2026
14°C or below
1%
15°C
2%
16°C
3%
17°C
10%
18°C
16%
19°C
39%
20°C
33%
21°C
6%
22°C
3%
23°C
<1%
24°C or higher
<1%
19°C 39%
20°C 33%
18°C 16%
17°C 10%
NEW
NEW
Aug 13, 2026
14°C or below
$24 Vol.
1%
15°C
$31 Vol.
2%
16°C
$58 Vol.
3%
17°C
$207 Vol.
10%
18°C
$292 Vol.
16%
19°C
$220 Vol.
39%
20°C
$1,402 Vol.
33%
21°C
$210 Vol.
6%
22°C
$84 Vol.
3%
23°C
$140 Vol.
<1%
24°C or higher
$36 Vol.
<1%
This market will resolve based on the lowest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the lowest temperature recorded at the London City Airport Station in degrees Celsius on 13 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the lowest temperature recorded for all times on this day for the London City Airport Station, available here: https://www.wunderground.com/history/daily/gb/london/EGLC.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °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.Current forecasts from the Met Office and other models indicate a continuation of above-average warmth across southern England, with nighttime minima for London on August 13 likely holding near 19–21°C amid high pressure, light winds, and limited cloud cover that reduces radiative cooling. This setup follows a recent heat spike and aligns with the market's tight clustering around 18–20°C outcomes, where traders weigh ensemble guidance showing modest variability in boundary-layer mixing and urban heat retention. Key upcoming updates include refreshed ECMWF and UKMO runs that could refine dew-point and wind forecasts, while historical August lows average closer to 14°C, underscoring how persistent anticyclonic conditions are elevating probabilities for the warmer end of the distribution.
This market will resolve based on the lowest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the lowest temperature recorded at the London City Airport Station in degrees Celsius on 13 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the lowest temperature recorded for all times on this day for the London City Airport Station, available here: https://www.wunderground.com/history/daily/gb/london/EGLC.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °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.
This market will resolve to the temperature range that contains the lowest temperature recorded at the London City Airport Station in degrees Celsius on 13 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the lowest temperature recorded for all times on this day for the London City Airport Station, available here: https://www.wunderground.com/history/daily/gb/london/EGLC.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °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 11, 2026, 12:30 AM ET
Volume
$2,704End Date
Aug 13, 2026Market Opened
Aug 11, 2026, 12:30 AM ETResolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...This market will resolve based on the lowest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the lowest temperature recorded at the London City Airport Station in degrees Celsius on 13 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the lowest temperature recorded for all times on this day for the London City Airport Station, available here: https://www.wunderground.com/history/daily/gb/london/EGLC.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °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.Current forecasts from the Met Office and other models indicate a continuation of above-average warmth across southern England, with nighttime minima for London on August 13 likely holding near 19–21°C amid high pressure, light winds, and limited cloud cover that reduces radiative cooling. This setup follows a recent heat spike and aligns with the market's tight clustering around 18–20°C outcomes, where traders weigh ensemble guidance showing modest variability in boundary-layer mixing and urban heat retention. Key upcoming updates include refreshed ECMWF and UKMO runs that could refine dew-point and wind forecasts, while historical August lows average closer to 14°C, underscoring how persistent anticyclonic conditions are elevating probabilities for the warmer end of the distribution.
This market will resolve based on the lowest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the lowest temperature recorded at the London City Airport Station in degrees Celsius on 13 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the lowest temperature recorded for all times on this day for the London City Airport Station, available here: https://www.wunderground.com/history/daily/gb/london/EGLC.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °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.
This market will resolve to the temperature range that contains the lowest temperature recorded at the London City Airport Station in degrees Celsius on 13 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the lowest temperature recorded for all times on this day for the London City Airport Station, available here: https://www.wunderground.com/history/daily/gb/london/EGLC.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °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
$2,704End Date
Aug 13, 2026Market Opened
Aug 11, 2026, 12:30 AM ETResolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...Current forecasts from the Met Office and other models indicate a continuation of above-average warmth across southern England, with nighttime minima for London on August 13 likely holding near 19–21°C amid high pressure, light winds, and limited cloud cover that reduces radiative cooling. This setup follows a recent heat spike and aligns with the market's tight clustering around 18–20°C outcomes, where traders weigh ensemble guidance showing modest variability in boundary-layer mixing and urban heat retention. Key upcoming updates include refreshed ECMWF and UKMO runs that could refine dew-point and wind forecasts, while historical August lows average closer to 14°C, underscoring how persistent anticyclonic conditions are elevating probabilities for the warmer end of the distribution.
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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