Forecast models from the Met Office and European Centre for Medium-Range Weather Forecasts indicate a shift toward cloudier, cooler conditions across southern England by August 19, with overnight radiative cooling potentially limited by increased cloud cover and light winds, supporting minimum temperatures near 14–15 °C. Trader consensus clustering at 16–17 °C reflects uncertainty in the precise timing of any frontal passage and the degree of clear-sky cooling, factors that can swing the daily low by 1–2 °C. Historical August climatology for London shows typical minima around 14 °C, providing context for the current model spread. Updated guidance expected within the next 24–48 hours from official agencies will likely refine these probabilities ahead of market 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 19?
16°C 41%
17°C 41%
18°C 12%
14°C 11%
11°C or below
<1%
12°C
4%
13°C
7%
14°C
11%
15°C
6%
16°C
41%
17°C
41%
18°C
12%
19°C
5%
20°C
2%
21°C or higher
1%
16°C 41%
17°C 41%
18°C 12%
14°C 11%
11°C or below
<1%
12°C
4%
13°C
7%
14°C
11%
15°C
6%
16°C
41%
17°C
41%
18°C
12%
19°C
5%
20°C
2%
21°C or higher
1%
This market will resolve to the temperature range that contains the lowest temperature recorded at the London City Airport Station in degrees Celsius on 19 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 17, 2026, 12:28 AM ET
Resolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...This market will resolve to the temperature range that contains the lowest temperature recorded at the London City Airport Station in degrees Celsius on 19 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.
Resolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...Forecast models from the Met Office and European Centre for Medium-Range Weather Forecasts indicate a shift toward cloudier, cooler conditions across southern England by August 19, with overnight radiative cooling potentially limited by increased cloud cover and light winds, supporting minimum temperatures near 14–15 °C. Trader consensus clustering at 16–17 °C reflects uncertainty in the precise timing of any frontal passage and the degree of clear-sky cooling, factors that can swing the daily low by 1–2 °C. Historical August climatology for London shows typical minima around 14 °C, providing context for the current model spread. Updated guidance expected within the next 24–48 hours from official agencies will likely refine these probabilities ahead of market 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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