Official temperature records from London-area stations, including those monitored by the UK Met Office, confirm a daily minimum of 18°C on August 9, locking in market-implied odds near 100% for that outcome. Persistent high pressure and southerly flow suppressed nighttime radiative cooling, preventing drops below this threshold despite typical August variability. Historical August minima for the city average around 14–16°C, making the observed value notably mild. Resolution hinges on verified station data rather than forecasts, so revisions are improbable absent data errors. Unlikely challenges include reclassification of outlier readings or disputes over station selection, but such adjustments rarely alter settled observations after the fact.
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 9?
Lowest temperature in London on August 9?
18°C 100.0%
12°C or below <1%
13°C <1%
14°C <1%
$17,050 Vol.
$17,050 Vol.
Aug 9, 2026
12°C or below
No
13°C
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
Yes
19°C
No
20°C
No
21°C
No
22°C or higher
No
18°C 100.0%
12°C or below <1%
13°C <1%
14°C <1%
$17,050 Vol.
$17,050 Vol.
Aug 9, 2026
12°C or below
$282 Vol.
No
13°C
$283 Vol.
No
14°C
$858 Vol.
No
15°C
$1,033 Vol.
No
16°C
$4,247 Vol.
No
17°C
$4,221 Vol.
No
18°C
$2,655 Vol.
Yes
19°C
$2,140 Vol.
No
20°C
$573 Vol.
No
21°C
$492 Vol.
No
22°C or higher
$267 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 9 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.Official temperature records from London-area stations, including those monitored by the UK Met Office, confirm a daily minimum of 18°C on August 9, locking in market-implied odds near 100% for that outcome. Persistent high pressure and southerly flow suppressed nighttime radiative cooling, preventing drops below this threshold despite typical August variability. Historical August minima for the city average around 14–16°C, making the observed value notably mild. Resolution hinges on verified station data rather than forecasts, so revisions are improbable absent data errors. Unlikely challenges include reclassification of outlier readings or disputes over station selection, but such adjustments rarely alter settled observations after the fact.
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 9 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 9 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 7, 2026, 12:30 AM ET
Volume
$17,050End Date
Aug 9, 2026Market Opened
Aug 7, 2026, 12:30 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 9 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.Official temperature records from London-area stations, including those monitored by the UK Met Office, confirm a daily minimum of 18°C on August 9, locking in market-implied odds near 100% for that outcome. Persistent high pressure and southerly flow suppressed nighttime radiative cooling, preventing drops below this threshold despite typical August variability. Historical August minima for the city average around 14–16°C, making the observed value notably mild. Resolution hinges on verified station data rather than forecasts, so revisions are improbable absent data errors. Unlikely challenges include reclassification of outlier readings or disputes over station selection, but such adjustments rarely alter settled observations after the fact.
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 9 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 9 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
$17,050End Date
Aug 9, 2026Market Opened
Aug 7, 2026, 12:30 AM ETResolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official temperature records from London-area stations, including those monitored by the UK Met Office, confirm a daily minimum of 18°C on August 9, locking in market-implied odds near 100% for that outcome. Persistent high pressure and southerly flow suppressed nighttime radiative cooling, preventing drops below this threshold despite typical August variability. Historical August minima for the city average around 14–16°C, making the observed value notably mild. Resolution hinges on verified station data rather than forecasts, so revisions are improbable absent data errors. Unlikely challenges include reclassification of outlier readings or disputes over station selection, but such adjustments rarely alter settled observations after the fact.
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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