Recent forecasts from the Met Office and BBC indicate London will experience a warm spell on August 13, 2026, with daytime highs near 30–35°C under high pressure and light winds, leading to an expected overnight minimum of 19–21°C. This positions 19°C and 20°C as the leading market outcomes, reflecting model consensus on limited radiative cooling amid a warm air mass and minimal cloud cover. Typical August lows hover around 13–15°C, so current conditions represent a notable positive anomaly driven by southerly flow. Updated model runs showing stable high pressure through the period reinforce trader confidence in this narrow range, with lower probabilities assigned to cooler or warmer extremes pending any last-minute shifts in steering patterns.
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 45%
20°C 37%
18°C 15%
17°C 3%
NEW
NEW
Aug 13, 2026
14°C or below
<1%
15°C
<1%
16°C
1%
17°C
3%
18°C
15%
19°C
45%
20°C
37%
21°C
3%
22°C
1%
23°C
<1%
24°C or higher
<1%
19°C 45%
20°C 37%
18°C 15%
17°C 3%
NEW
NEW
Aug 13, 2026
14°C or below
$62 Vol.
<1%
15°C
$74 Vol.
<1%
16°C
$85 Vol.
1%
17°C
$612 Vol.
3%
18°C
$349 Vol.
15%
19°C
$880 Vol.
45%
20°C
$1,554 Vol.
37%
21°C
$333 Vol.
3%
22°C
$156 Vol.
1%
23°C
$178 Vol.
<1%
24°C or higher
$74 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.Recent forecasts from the Met Office and BBC indicate London will experience a warm spell on August 13, 2026, with daytime highs near 30–35°C under high pressure and light winds, leading to an expected overnight minimum of 19–21°C. This positions 19°C and 20°C as the leading market outcomes, reflecting model consensus on limited radiative cooling amid a warm air mass and minimal cloud cover. Typical August lows hover around 13–15°C, so current conditions represent a notable positive anomaly driven by southerly flow. Updated model runs showing stable high pressure through the period reinforce trader confidence in this narrow range, with lower probabilities assigned to cooler or warmer extremes pending any last-minute shifts in steering patterns.
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
$4,358End 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.Recent forecasts from the Met Office and BBC indicate London will experience a warm spell on August 13, 2026, with daytime highs near 30–35°C under high pressure and light winds, leading to an expected overnight minimum of 19–21°C. This positions 19°C and 20°C as the leading market outcomes, reflecting model consensus on limited radiative cooling amid a warm air mass and minimal cloud cover. Typical August lows hover around 13–15°C, so current conditions represent a notable positive anomaly driven by southerly flow. Updated model runs showing stable high pressure through the period reinforce trader confidence in this narrow range, with lower probabilities assigned to cooler or warmer extremes pending any last-minute shifts in steering patterns.
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
$4,358End Date
Aug 13, 2026Market Opened
Aug 11, 2026, 12:30 AM ETResolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...Recent forecasts from the Met Office and BBC indicate London will experience a warm spell on August 13, 2026, with daytime highs near 30–35°C under high pressure and light winds, leading to an expected overnight minimum of 19–21°C. This positions 19°C and 20°C as the leading market outcomes, reflecting model consensus on limited radiative cooling amid a warm air mass and minimal cloud cover. Typical August lows hover around 13–15°C, so current conditions represent a notable positive anomaly driven by southerly flow. Updated model runs showing stable high pressure through the period reinforce trader confidence in this narrow range, with lower probabilities assigned to cooler or warmer extremes pending any last-minute shifts in steering patterns.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions