Recent Met Office guidance highlights a building high-pressure ridge advecting warmer continental air into southeast England, with model consensus pointing to peak temperatures near 27–28 °C on 20 June under mostly clear skies and light winds. Ensemble spreads reflect modest uncertainty in exact timing of the diurnal maximum and any thin high cloud that could trim a degree or two, keeping 29 °C and above as lower-probability outliers. These conditions sit several degrees above seasonal normals but remain well short of record thresholds, aligning trader sentiment around the narrow 27–28 °C band while underscoring how small shifts in boundary-layer mixing or insolation could tip the daily high.
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 June 20?
Highest temperature in London on June 20?
27°C 32%
28°C 29%
29°C 15%
26°C 13%
NEW
NEW
Jun 20, 2026
22°C or below
<1%
23°C
1%
24°C
3%
25°C
9%
26°C
13%
27°C
32%
28°C
29%
29°C
15%
30°C
3%
31°C
3%
32°C or higher
1%
27°C 32%
28°C 29%
29°C 15%
26°C 13%
NEW
NEW
Jun 20, 2026
22°C or below
$30 Vol.
<1%
23°C
$74 Vol.
1%
24°C
$0 Vol.
3%
25°C
$0 Vol.
9%
26°C
$45 Vol.
13%
27°C
$346 Vol.
32%
28°C
$161 Vol.
29%
29°C
$79 Vol.
15%
30°C
$0 Vol.
3%
31°C
$28 Vol.
3%
32°C or higher
$5 Vol.
1%
This market will resolve to the temperature range that contains the highest temperature recorded at the London City Airport Station in degrees Celsius on 20 Jun '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.Recent Met Office guidance highlights a building high-pressure ridge advecting warmer continental air into southeast England, with model consensus pointing to peak temperatures near 27–28 °C on 20 June under mostly clear skies and light winds. Ensemble spreads reflect modest uncertainty in exact timing of the diurnal maximum and any thin high cloud that could trim a degree or two, keeping 29 °C and above as lower-probability outliers. These conditions sit several degrees above seasonal normals but remain well short of record thresholds, aligning trader sentiment around the narrow 27–28 °C band while underscoring how small shifts in boundary-layer mixing or insolation could tip the daily high.
This market will resolve to the temperature range that contains the highest temperature recorded at the London City Airport Station in degrees Celsius on 20 Jun '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.
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: Jun 18, 2026, 12:03 AM ET
Volume
$769End Date
Jun 20, 2026Market Opened
Jun 18, 2026, 12:03 AM ETResolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded at the London City Airport Station in degrees Celsius on 20 Jun '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.Recent Met Office guidance highlights a building high-pressure ridge advecting warmer continental air into southeast England, with model consensus pointing to peak temperatures near 27–28 °C on 20 June under mostly clear skies and light winds. Ensemble spreads reflect modest uncertainty in exact timing of the diurnal maximum and any thin high cloud that could trim a degree or two, keeping 29 °C and above as lower-probability outliers. These conditions sit several degrees above seasonal normals but remain well short of record thresholds, aligning trader sentiment around the narrow 27–28 °C band while underscoring how small shifts in boundary-layer mixing or insolation could tip the daily high.
This market will resolve to the temperature range that contains the highest temperature recorded at the London City Airport Station in degrees Celsius on 20 Jun '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.
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
$769End Date
Jun 20, 2026Market Opened
Jun 18, 2026, 12:03 AM ETResolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...Recent Met Office guidance highlights a building high-pressure ridge advecting warmer continental air into southeast England, with model consensus pointing to peak temperatures near 27–28 °C on 20 June under mostly clear skies and light winds. Ensemble spreads reflect modest uncertainty in exact timing of the diurnal maximum and any thin high cloud that could trim a degree or two, keeping 29 °C and above as lower-probability outliers. These conditions sit several degrees above seasonal normals but remain well short of record thresholds, aligning trader sentiment around the narrow 27–28 °C band while underscoring how small shifts in boundary-layer mixing or insolation could tip the daily high.
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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