Recent Met Office forecasts show London cooling after mid-July heat peaks near 35°C, with high pressure to the west and an easterly breeze moderating conditions for July 19. The latest 7-day outlook projects a daily maximum of 24°C under mostly settled, drier patterns, though model runs retain modest uncertainty around cloud cover and any residual warmth. This aligns with trader consensus favoring 23–24°C as the highest temperature, reflecting historical July averages near 23°C alongside the observed post-heatwave transition. Updated guidance on steering patterns and temperature thresholds will refine these market-implied odds ahead of 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 July 19?
21°C 100.0%
19°C or below <1%
20°C <1%
22°C <1%
$123,434 Vol.
$123,434 Vol.
19°C or below
No
20°C
No
21°C
Yes
22°C
No
23°C
No
24°C
No
25°C
No
26°C
No
27°C
No
28°C
No
29°C or higher
No
21°C 100.0%
19°C or below <1%
20°C <1%
22°C <1%
$123,434 Vol.
$123,434 Vol.
19°C or below
No
20°C
No
21°C
Yes
22°C
No
23°C
No
24°C
No
25°C
No
26°C
No
27°C
No
28°C
No
29°C or higher
No
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: Jul 17, 2026, 1:02 AM ET
Resolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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.
Resolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Recent Met Office forecasts show London cooling after mid-July heat peaks near 35°C, with high pressure to the west and an easterly breeze moderating conditions for July 19. The latest 7-day outlook projects a daily maximum of 24°C under mostly settled, drier patterns, though model runs retain modest uncertainty around cloud cover and any residual warmth. This aligns with trader consensus favoring 23–24°C as the highest temperature, reflecting historical July averages near 23°C alongside the observed post-heatwave transition. Updated guidance on steering patterns and temperature thresholds will refine these market-implied odds ahead of 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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