Official Met Office and BBC forecasts for London on August 12, 2026, indicate an overnight minimum of 18°C under clear skies, light easterly winds, and a stable warm air mass, supporting the market's overwhelming 98.6% implied probability for that exact outcome. This aligns with current high-pressure conditions promoting radiative cooling without significant temperature drops below observed baselines. Model consensus shows minimal variability in the 17–19°C range, consistent with typical August nocturnal cooling rates for the region. A realistic challenge would require unexpected increases in low-level cloud or a sharper-than-expected cold front, though neither appears in the latest guidance ahead of tonight's minimum.
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 12?
18°C 98.6%
16°C <1%
17°C <1%
19°C <1%
$14,388 Vol.
$14,388 Vol.
12°C or below
<1%
13°C
<1%
14°C
<1%
15°C
<1%
16°C
1%
17°C
1%
18°C
99%
19°C
<1%
20°C
<1%
21°C
<1%
22°C or higher
<1%
18°C 98.6%
16°C <1%
17°C <1%
19°C <1%
$14,388 Vol.
$14,388 Vol.
12°C or below
<1%
13°C
<1%
14°C
<1%
15°C
<1%
16°C
1%
17°C
1%
18°C
99%
19°C
<1%
20°C
<1%
21°C
<1%
22°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 12 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 10, 2026, 12:30 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 12 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...Official Met Office and BBC forecasts for London on August 12, 2026, indicate an overnight minimum of 18°C under clear skies, light easterly winds, and a stable warm air mass, supporting the market's overwhelming 98.6% implied probability for that exact outcome. This aligns with current high-pressure conditions promoting radiative cooling without significant temperature drops below observed baselines. Model consensus shows minimal variability in the 17–19°C range, consistent with typical August nocturnal cooling rates for the region. A realistic challenge would require unexpected increases in low-level cloud or a sharper-than-expected cold front, though neither appears in the latest guidance ahead of tonight's minimum.
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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