Latest official forecasts from the Met Office and supporting models indicate a maximum of 21–22 °C in London on 22 August under northerly winds and building high pressure, with partly cloudy skies and minimal rain risk. This consensus, following a cooler trend after mid-August warmth, positions 22 °C (44.5 % implied probability) and 21 °C (29.5 %) as the leading outcomes by aligning with ensemble guidance and historical late-summer baselines near 21 °C. Limited model spread and stable atmospheric patterns reduce odds for 23 °C or higher, while the narrow distribution underscores trader confidence in the current forecast trajectory ahead of final observational data.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in London on August 22?
Highest temperature in London on August 22?
22°C 41%
21°C 27%
23°C 17%
20°C 5%
NEW
$14,696 Vol.
NEW
$14,696 Vol.
Aug 22, 2026
18°C or below
1%
19°C
3%
20°C
5%
21°C
27%
22°C
41%
23°C
17%
24°C
3%
25°C
1%
26°C
1%
27°C
<1%
28°C or higher
<1%
22°C 41%
21°C 27%
23°C 17%
20°C 5%
NEW
$14,696 Vol.
NEW
$14,696 Vol.
Aug 22, 2026
18°C or below
$420 Vol.
1%
19°C
$449 Vol.
3%
20°C
$931 Vol.
5%
21°C
$1,987 Vol.
27%
22°C
$2,327 Vol.
41%
23°C
$1,674 Vol.
17%
24°C
$747 Vol.
3%
25°C
$1,228 Vol.
1%
26°C
$1,075 Vol.
1%
27°C
$2,092 Vol.
<1%
28°C or higher
$1,767 Vol.
<1%
This market will resolve based on the highest 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 highest temperature recorded at the London City Airport Station in degrees Celsius on 22 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest 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.Latest official forecasts from the Met Office and supporting models indicate a maximum of 21–22 °C in London on 22 August under northerly winds and building high pressure, with partly cloudy skies and minimal rain risk. This consensus, following a cooler trend after mid-August warmth, positions 22 °C (44.5 % implied probability) and 21 °C (29.5 %) as the leading outcomes by aligning with ensemble guidance and historical late-summer baselines near 21 °C. Limited model spread and stable atmospheric patterns reduce odds for 23 °C or higher, while the narrow distribution underscores trader confidence in the current forecast trajectory ahead of final observational data.
This market will resolve based on the highest 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 highest temperature recorded at the London City Airport Station in degrees Celsius on 22 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest 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 highest temperature recorded at the London City Airport Station in degrees Celsius on 22 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest 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 20, 2026, 12:56 AM ET
Volume
$14,696End Date
Aug 22, 2026Market Opened
Aug 20, 2026, 12:56 AM ETResolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...This market will resolve based on the highest 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 highest temperature recorded at the London City Airport Station in degrees Celsius on 22 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest 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.Latest official forecasts from the Met Office and supporting models indicate a maximum of 21–22 °C in London on 22 August under northerly winds and building high pressure, with partly cloudy skies and minimal rain risk. This consensus, following a cooler trend after mid-August warmth, positions 22 °C (44.5 % implied probability) and 21 °C (29.5 %) as the leading outcomes by aligning with ensemble guidance and historical late-summer baselines near 21 °C. Limited model spread and stable atmospheric patterns reduce odds for 23 °C or higher, while the narrow distribution underscores trader confidence in the current forecast trajectory ahead of final observational data.
This market will resolve based on the highest 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 highest temperature recorded at the London City Airport Station in degrees Celsius on 22 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest 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 highest temperature recorded at the London City Airport Station in degrees Celsius on 22 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest 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
$14,696End Date
Aug 22, 2026Market Opened
Aug 20, 2026, 12:56 AM ETResolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...Latest official forecasts from the Met Office and supporting models indicate a maximum of 21–22 °C in London on 22 August under northerly winds and building high pressure, with partly cloudy skies and minimal rain risk. This consensus, following a cooler trend after mid-August warmth, positions 22 °C (44.5 % implied probability) and 21 °C (29.5 %) as the leading outcomes by aligning with ensemble guidance and historical late-summer baselines near 21 °C. Limited model spread and stable atmospheric patterns reduce odds for 23 °C or higher, while the narrow distribution underscores trader confidence in the current forecast trajectory ahead of final observational data.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions