Recent Met Office forecasts for London on June 25 indicate a daytime maximum near 35°C amid the ongoing UK heatwave, driven by persistent high pressure and southerly flow of warm, humid air from the continent. Ensemble model runs show moderate spread around this value due to timing of any Atlantic front or cloud cover that could cap peak readings, which explains the tight market clustering between 31°C and 32°C as leading outcomes. Historical June maxima in London average near 21°C, so current conditions represent a significant positive anomaly, with traders weighting the latest high-resolution guidance and uncertainty in boundary-layer mixing over the next 48 hours. Updated model outputs from the Met Office and ECMWF are expected to refine probabilities ahead of market resolution.
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 25?
Highest temperature in London on June 25?
29°C 100.0%
26°C or below <1%
27°C <1%
28°C <1%
$380,834 Vol.
$380,834 Vol.
Jun 25, 2026
26°C or below
No
27°C
No
28°C
No
29°C
Yes
30°C
No
31°C
No
32°C
No
33°C
No
34°C
No
35°C
No
36°C or higher
No
29°C 100.0%
26°C or below <1%
27°C <1%
28°C <1%
$380,834 Vol.
$380,834 Vol.
Jun 25, 2026
26°C or below
$43,758 Vol.
No
27°C
$36,695 Vol.
No
28°C
$46,213 Vol.
No
29°C
$66,060 Vol.
Yes
30°C
$45,747 Vol.
No
31°C
$31,710 Vol.
No
32°C
$25,709 Vol.
No
33°C
$31,433 Vol.
No
34°C
$17,039 Vol.
No
35°C
$14,941 Vol.
No
36°C or higher
$21,530 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 25 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 forecasts for London on June 25 indicate a daytime maximum near 35°C amid the ongoing UK heatwave, driven by persistent high pressure and southerly flow of warm, humid air from the continent. Ensemble model runs show moderate spread around this value due to timing of any Atlantic front or cloud cover that could cap peak readings, which explains the tight market clustering between 31°C and 32°C as leading outcomes. Historical June maxima in London average near 21°C, so current conditions represent a significant positive anomaly, with traders weighting the latest high-resolution guidance and uncertainty in boundary-layer mixing over the next 48 hours. Updated model outputs from the Met Office and ECMWF are expected to refine probabilities ahead of market resolution.
This market will resolve to the temperature range that contains the highest temperature recorded at the London City Airport Station in degrees Celsius on 25 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 23, 2026, 1:03 AM ET
Volume
$380,834End Date
Jun 25, 2026Market Opened
Jun 23, 2026, 1:03 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 25 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 forecasts for London on June 25 indicate a daytime maximum near 35°C amid the ongoing UK heatwave, driven by persistent high pressure and southerly flow of warm, humid air from the continent. Ensemble model runs show moderate spread around this value due to timing of any Atlantic front or cloud cover that could cap peak readings, which explains the tight market clustering between 31°C and 32°C as leading outcomes. Historical June maxima in London average near 21°C, so current conditions represent a significant positive anomaly, with traders weighting the latest high-resolution guidance and uncertainty in boundary-layer mixing over the next 48 hours. Updated model outputs from the Met Office and ECMWF are expected to refine probabilities ahead of market resolution.
This market will resolve to the temperature range that contains the highest temperature recorded at the London City Airport Station in degrees Celsius on 25 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
$380,834End Date
Jun 25, 2026Market Opened
Jun 23, 2026, 1:03 AM ETResolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Recent Met Office forecasts for London on June 25 indicate a daytime maximum near 35°C amid the ongoing UK heatwave, driven by persistent high pressure and southerly flow of warm, humid air from the continent. Ensemble model runs show moderate spread around this value due to timing of any Atlantic front or cloud cover that could cap peak readings, which explains the tight market clustering between 31°C and 32°C as leading outcomes. Historical June maxima in London average near 21°C, so current conditions represent a significant positive anomaly, with traders weighting the latest high-resolution guidance and uncertainty in boundary-layer mixing over the next 48 hours. Updated model outputs from the Met Office and ECMWF are expected to refine probabilities ahead of market resolution.
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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