Current forecast models from the Met Office indicate London will see overnight lows near 17–18°C on August 29, driven by mild southwesterly flow, limited cloud cover, and seasonal norms for late summer. These conditions suppress radiative cooling that typically produces lower readings, while urban heat island effects further anchor minimums above historical averages. Market-implied odds heavily favor 18°C or 17°C because recent ensemble runs show little deviation from this range, with minimal risk of cooler advection or clearer skies that could drop temperatures further. Updated guidance later today will confirm the exact minimum recorded at official stations, directly resolving the contract.
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 29?
16°C 2.2%
14°C <1%
15°C <1%
12°C or below <1%
$8,987 Vol.
$8,987 Vol.
12°C or below
<1%
13°C
<1%
14°C
1%
15°C
<1%
16°C
2%
17°C
40%
18°C
61%
19°C
<1%
20°C
<1%
21°C
<1%
22°C or higher
<1%
16°C 2.2%
14°C <1%
15°C <1%
12°C or below <1%
$8,987 Vol.
$8,987 Vol.
12°C or below
<1%
13°C
<1%
14°C
1%
15°C
<1%
16°C
2%
17°C
40%
18°C
61%
19°C
<1%
20°C
<1%
21°C
<1%
22°C or higher
<1%
The resolution source for this market will be information from NOAA, specifically the lowest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=eglc
If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
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 27, 2026, 12:29 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=eglcResolver
0x69c47De9D...The resolution source for this market will be information from NOAA, specifically the lowest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=eglc
If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
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.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=eglcResolver
0x69c47De9D...Current forecast models from the Met Office indicate London will see overnight lows near 17–18°C on August 29, driven by mild southwesterly flow, limited cloud cover, and seasonal norms for late summer. These conditions suppress radiative cooling that typically produces lower readings, while urban heat island effects further anchor minimums above historical averages. Market-implied odds heavily favor 18°C or 17°C because recent ensemble runs show little deviation from this range, with minimal risk of cooler advection or clearer skies that could drop temperatures further. Updated guidance later today will confirm the exact minimum recorded at official stations, directly resolving the contract.
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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