Following an intense June heatwave that delivered multiple UK temperature records above 35°C, official guidance from the Met Office signals a transition to cooler maritime air and scattered showers across southeast England by June 29. Increased cloud cover and precipitation are expected to limit solar heating and cap daytime maxima, with ensemble forecasts showing modest spread around 23–26°C. The closely matched market probabilities for 24°C and 25°C reflect this uncertainty in exact timing of frontal passage and local urban heat-island effects, while lower odds for 27°C or higher align with the anticipated moderation from peak heatwave conditions.
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 29?
Highest temperature in London on June 29?
25°C 100.0%
21°C or below <1%
22°C <1%
23°C <1%
$153,098 Vol.
$153,098 Vol.
Jun 29, 2026
21°C or below
No
22°C
No
23°C
No
24°C
No
25°C
Yes
26°C
No
27°C
No
28°C
No
29°C
No
30°C
No
31°C or higher
No
25°C 100.0%
21°C or below <1%
22°C <1%
23°C <1%
$153,098 Vol.
$153,098 Vol.
Jun 29, 2026
21°C or below
$4,016 Vol.
No
22°C
$22,126 Vol.
No
23°C
$16,479 Vol.
No
24°C
$48,060 Vol.
No
25°C
$19,828 Vol.
Yes
26°C
$21,279 Vol.
No
27°C
$14,302 Vol.
No
28°C
$4,876 Vol.
No
29°C
$1,352 Vol.
No
30°C
$406 Vol.
No
31°C or higher
$374 Vol.
No
This market will resolve to the temperature range that contains the highest temperature recorded at the London City Airport Station in degrees Celsius on 29 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.Following an intense June heatwave that delivered multiple UK temperature records above 35°C, official guidance from the Met Office signals a transition to cooler maritime air and scattered showers across southeast England by June 29. Increased cloud cover and precipitation are expected to limit solar heating and cap daytime maxima, with ensemble forecasts showing modest spread around 23–26°C. The closely matched market probabilities for 24°C and 25°C reflect this uncertainty in exact timing of frontal passage and local urban heat-island effects, while lower odds for 27°C or higher align with the anticipated moderation from peak heatwave conditions.
This market will resolve to the temperature range that contains the highest temperature recorded at the London City Airport Station in degrees Celsius on 29 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 27, 2026, 12:01 AM ET
Volume
$153,098End Date
Jun 29, 2026Market Opened
Jun 27, 2026, 12:01 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 to the temperature range that contains the highest temperature recorded at the London City Airport Station in degrees Celsius on 29 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.Following an intense June heatwave that delivered multiple UK temperature records above 35°C, official guidance from the Met Office signals a transition to cooler maritime air and scattered showers across southeast England by June 29. Increased cloud cover and precipitation are expected to limit solar heating and cap daytime maxima, with ensemble forecasts showing modest spread around 23–26°C. The closely matched market probabilities for 24°C and 25°C reflect this uncertainty in exact timing of frontal passage and local urban heat-island effects, while lower odds for 27°C or higher align with the anticipated moderation from peak heatwave conditions.
This market will resolve to the temperature range that contains the highest temperature recorded at the London City Airport Station in degrees Celsius on 29 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
$153,098End Date
Jun 29, 2026Market Opened
Jun 27, 2026, 12:01 AM ETResolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Following an intense June heatwave that delivered multiple UK temperature records above 35°C, official guidance from the Met Office signals a transition to cooler maritime air and scattered showers across southeast England by June 29. Increased cloud cover and precipitation are expected to limit solar heating and cap daytime maxima, with ensemble forecasts showing modest spread around 23–26°C. The closely matched market probabilities for 24°C and 25°C reflect this uncertainty in exact timing of frontal passage and local urban heat-island effects, while lower odds for 27°C or higher align with the anticipated moderation from peak heatwave conditions.
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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