Recent Met Office guidance indicates London’s maximum temperature on June 30 will likely peak near 24 °C as the intense late-June heatwave relaxes. High pressure that drove mid-30 °C readings earlier in the week is giving way to fresher Atlantic air and scattered showers, moderating daytime maxima toward seasonal norms of 20–22 °C while still allowing modest warming under residual sunshine. Ensemble model consensus and the latest operational runs cluster tightly around 23–25 °C, with only limited upside risk if clearing skies persist longer than expected. This scientific outlook underpins the market’s leading 24 °C (38 %) and 25 °C (21.5 %) contracts, reflecting traders’ assessment of rapidly evolving synoptic conditions two days before 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 30?
Highest temperature in London on June 30?
24°C 40%
25°C 27%
23°C 21%
26°C 9%
NEW
$17,789 Vol.
NEW
$17,789 Vol.
Jun 30, 2026
21°C or below
2%
22°C
6%
23°C
21%
24°C
40%
25°C
27%
26°C
9%
27°C
1%
28°C
<1%
29°C
<1%
30°C
<1%
31°C or higher
<1%
24°C 40%
25°C 27%
23°C 21%
26°C 9%
NEW
$17,789 Vol.
NEW
$17,789 Vol.
Jun 30, 2026
21°C or below
$957 Vol.
2%
22°C
$1,220 Vol.
6%
23°C
$2,900 Vol.
21%
24°C
$2,648 Vol.
40%
25°C
$3,744 Vol.
27%
26°C
$2,417 Vol.
9%
27°C
$1,037 Vol.
1%
28°C
$549 Vol.
<1%
29°C
$1,490 Vol.
<1%
30°C
$525 Vol.
<1%
31°C or higher
$304 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 30 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 indicates London’s maximum temperature on June 30 will likely peak near 24 °C as the intense late-June heatwave relaxes. High pressure that drove mid-30 °C readings earlier in the week is giving way to fresher Atlantic air and scattered showers, moderating daytime maxima toward seasonal norms of 20–22 °C while still allowing modest warming under residual sunshine. Ensemble model consensus and the latest operational runs cluster tightly around 23–25 °C, with only limited upside risk if clearing skies persist longer than expected. This scientific outlook underpins the market’s leading 24 °C (38 %) and 25 °C (21.5 %) contracts, reflecting traders’ assessment of rapidly evolving synoptic conditions two days before 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 30 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 28, 2026, 1:01 AM ET
Volume
$17,789End Date
Jun 30, 2026Market Opened
Jun 28, 2026, 1:01 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 30 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 indicates London’s maximum temperature on June 30 will likely peak near 24 °C as the intense late-June heatwave relaxes. High pressure that drove mid-30 °C readings earlier in the week is giving way to fresher Atlantic air and scattered showers, moderating daytime maxima toward seasonal norms of 20–22 °C while still allowing modest warming under residual sunshine. Ensemble model consensus and the latest operational runs cluster tightly around 23–25 °C, with only limited upside risk if clearing skies persist longer than expected. This scientific outlook underpins the market’s leading 24 °C (38 %) and 25 °C (21.5 %) contracts, reflecting traders’ assessment of rapidly evolving synoptic conditions two days before 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 30 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
$17,789End Date
Jun 30, 2026Market Opened
Jun 28, 2026, 1:01 AM ETResolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...Recent Met Office guidance indicates London’s maximum temperature on June 30 will likely peak near 24 °C as the intense late-June heatwave relaxes. High pressure that drove mid-30 °C readings earlier in the week is giving way to fresher Atlantic air and scattered showers, moderating daytime maxima toward seasonal norms of 20–22 °C while still allowing modest warming under residual sunshine. Ensemble model consensus and the latest operational runs cluster tightly around 23–25 °C, with only limited upside risk if clearing skies persist longer than expected. This scientific outlook underpins the market’s leading 24 °C (38 %) and 25 °C (21.5 %) contracts, reflecting traders’ assessment of rapidly evolving synoptic conditions two days before 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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