Recent forecasts indicate significant uncertainty in London's overnight minimum on August 27, with thundery showers and persistent cloud cover expected to moderate radiative cooling under mostly easterly flow. Official Met Office guidance points to a 16°C low amid widespread rain, yet ensemble models diverge on cloud thickness and precipitation timing, which can suppress temperature drops by trapping longwave radiation and enhancing boundary-layer mixing. This keeps the market tightly balanced between 18°C and 19°C outcomes as traders weigh the strength of any clearing skies against ongoing Atlantic moisture advection. Updated high-resolution runs from the UK Met Office and ECMWF, due over the next 24–48 hours, will clarify whether stronger winds or breaks in cloud allow temperatures to approach 17°C or hold nearer 20°C.
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 27?
Lowest temperature in London on August 27?
19°C 38%
18°C 35%
20°C 16%
16°C 9%
NEW
NEW
Aug 27, 2026
13°C or below
2%
14°C
5%
15°C
7%
16°C
9%
17°C
8%
18°C
35%
19°C
38%
20°C
16%
21°C
4%
22°C
2%
23°C or higher
2%
19°C 38%
18°C 35%
20°C 16%
16°C 9%
NEW
NEW
Aug 27, 2026
13°C or below
$5 Vol.
2%
14°C
$5 Vol.
5%
15°C
$5 Vol.
7%
16°C
$20 Vol.
9%
17°C
$105 Vol.
8%
18°C
$303 Vol.
35%
19°C
$397 Vol.
38%
20°C
$157 Vol.
16%
21°C
$86 Vol.
4%
22°C
$5 Vol.
2%
23°C or higher
$5 Vol.
2%
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the London City Airport Station in degrees Celsius on 27 Aug '26.
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.Recent forecasts indicate significant uncertainty in London's overnight minimum on August 27, with thundery showers and persistent cloud cover expected to moderate radiative cooling under mostly easterly flow. Official Met Office guidance points to a 16°C low amid widespread rain, yet ensemble models diverge on cloud thickness and precipitation timing, which can suppress temperature drops by trapping longwave radiation and enhancing boundary-layer mixing. This keeps the market tightly balanced between 18°C and 19°C outcomes as traders weigh the strength of any clearing skies against ongoing Atlantic moisture advection. Updated high-resolution runs from the UK Met Office and ECMWF, due over the next 24–48 hours, will clarify whether stronger winds or breaks in cloud allow temperatures to approach 17°C or hold nearer 20°C.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the London City Airport Station in degrees Celsius on 27 Aug '26.
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.
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 25, 2026, 12:29 AM ET
Volume
$1,093End Date
Aug 27, 2026Market Opened
Aug 25, 2026, 12:29 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=eglcResolver
0x69c47De9D...This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the London City Airport Station in degrees Celsius on 27 Aug '26.
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.Recent forecasts indicate significant uncertainty in London's overnight minimum on August 27, with thundery showers and persistent cloud cover expected to moderate radiative cooling under mostly easterly flow. Official Met Office guidance points to a 16°C low amid widespread rain, yet ensemble models diverge on cloud thickness and precipitation timing, which can suppress temperature drops by trapping longwave radiation and enhancing boundary-layer mixing. This keeps the market tightly balanced between 18°C and 19°C outcomes as traders weigh the strength of any clearing skies against ongoing Atlantic moisture advection. Updated high-resolution runs from the UK Met Office and ECMWF, due over the next 24–48 hours, will clarify whether stronger winds or breaks in cloud allow temperatures to approach 17°C or hold nearer 20°C.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the London City Airport Station in degrees Celsius on 27 Aug '26.
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.
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.
Volume
$1,093End Date
Aug 27, 2026Market Opened
Aug 25, 2026, 12:29 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=eglcResolver
0x69c47De9D...Recent forecasts indicate significant uncertainty in London's overnight minimum on August 27, with thundery showers and persistent cloud cover expected to moderate radiative cooling under mostly easterly flow. Official Met Office guidance points to a 16°C low amid widespread rain, yet ensemble models diverge on cloud thickness and precipitation timing, which can suppress temperature drops by trapping longwave radiation and enhancing boundary-layer mixing. This keeps the market tightly balanced between 18°C and 19°C outcomes as traders weigh the strength of any clearing skies against ongoing Atlantic moisture advection. Updated high-resolution runs from the UK Met Office and ECMWF, due over the next 24–48 hours, will clarify whether stronger winds or breaks in cloud allow temperatures to approach 17°C or hold nearer 20°C.
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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