Recent meteorological observations and forecast models indicate mild overnight conditions across London on August 18, 2026, with limited radiative cooling under cloudy skies and light winds maintaining minimum temperatures near 18°C. Official guidance from agencies such as the Met Office shows daytime highs around 25–26°C transitioning to overnight lows supported by above-average seasonal baselines for mid-August, where typical minima range 13–15°C but current atmospheric patterns suppress further drops. This setup underpins the market-implied 99.5% consensus on 18°C as the daily low. Clearer skies or an unexpected northerly airflow could allow temperatures to dip toward 16°C or below, though model consensus currently assigns low probability to such shifts before resolution.
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 18?
Lowest temperature in London on August 18?
18°C 100.0%
14°C or below <1%
15°C <1%
16°C <1%
$14,467 Vol.
$14,467 Vol.
Aug 18, 2026
14°C or below
No
15°C
No
16°C
No
17°C
No
18°C
Yes
19°C
No
20°C
No
21°C
No
22°C
No
23°C
No
24°C or higher
No
18°C 100.0%
14°C or below <1%
15°C <1%
16°C <1%
$14,467 Vol.
$14,467 Vol.
Aug 18, 2026
14°C or below
$238 Vol.
No
15°C
$1,831 Vol.
No
16°C
$1,525 Vol.
No
17°C
$2,704 Vol.
No
18°C
$2,699 Vol.
Yes
19°C
$2,841 Vol.
No
20°C
$1,752 Vol.
No
21°C
$281 Vol.
No
22°C
$222 Vol.
No
23°C
$192 Vol.
No
24°C or higher
$182 Vol.
No
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 18 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 meteorological observations and forecast models indicate mild overnight conditions across London on August 18, 2026, with limited radiative cooling under cloudy skies and light winds maintaining minimum temperatures near 18°C. Official guidance from agencies such as the Met Office shows daytime highs around 25–26°C transitioning to overnight lows supported by above-average seasonal baselines for mid-August, where typical minima range 13–15°C but current atmospheric patterns suppress further drops. This setup underpins the market-implied 99.5% consensus on 18°C as the daily low. Clearer skies or an unexpected northerly airflow could allow temperatures to dip toward 16°C or below, though model consensus currently assigns low probability to such shifts before resolution.
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 18 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 18 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 16, 2026, 12:28 AM ET
Volume
$14,467End Date
Aug 18, 2026Market Opened
Aug 16, 2026, 12:28 AM ETResolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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 18 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 meteorological observations and forecast models indicate mild overnight conditions across London on August 18, 2026, with limited radiative cooling under cloudy skies and light winds maintaining minimum temperatures near 18°C. Official guidance from agencies such as the Met Office shows daytime highs around 25–26°C transitioning to overnight lows supported by above-average seasonal baselines for mid-August, where typical minima range 13–15°C but current atmospheric patterns suppress further drops. This setup underpins the market-implied 99.5% consensus on 18°C as the daily low. Clearer skies or an unexpected northerly airflow could allow temperatures to dip toward 16°C or below, though model consensus currently assigns low probability to such shifts before resolution.
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 18 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 18 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
$14,467End Date
Aug 18, 2026Market Opened
Aug 16, 2026, 12:28 AM ETResolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Recent meteorological observations and forecast models indicate mild overnight conditions across London on August 18, 2026, with limited radiative cooling under cloudy skies and light winds maintaining minimum temperatures near 18°C. Official guidance from agencies such as the Met Office shows daytime highs around 25–26°C transitioning to overnight lows supported by above-average seasonal baselines for mid-August, where typical minima range 13–15°C but current atmospheric patterns suppress further drops. This setup underpins the market-implied 99.5% consensus on 18°C as the daily low. Clearer skies or an unexpected northerly airflow could allow temperatures to dip toward 16°C or below, though model consensus currently assigns low probability to such shifts before resolution.
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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