Official Met Office observations confirm a minimum temperature of 7°C at London Heathrow—the standard reference site for such markets—on April 22, 2026, driving the 100% trader consensus amid light easterly winds, partial cloud cover, and the urban heat island effect that tempered radiational cooling typical for late April nights. This aligns with pre-event forecast model runs from the UK Met Office and ECMWF predicting overnight lows of 6–8°C under high-pressure influence. Historical April minima at Heathrow average 5–7°C, making this unremarkable. Only an unprecedented data revision from quality-controlled records could challenge resolution, though such events are exceedingly rare post-verification. Final data release expected shortly.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in London on April 22?
7°C 100.0%
2°C or below <1%
3°C <1%
4°C <1%
$43,512 Vol.
$43,512 Vol.
2°C or below
No
3°C
No
4°C
No
5°C
No
6°C
No
7°C
Yes
8°C
No
9°C
No
10°C
No
11°C
No
12°C or higher
No
7°C 100.0%
2°C or below <1%
3°C <1%
4°C <1%
$43,512 Vol.
$43,512 Vol.
2°C or below
No
3°C
No
4°C
No
5°C
No
6°C
No
7°C
Yes
8°C
No
9°C
No
10°C
No
11°C
No
12°C or higher
No
The resolution source for this market will be information from Wunderground, specifically the lowest temperature recorded for all times on this day by the Forecast for the London City Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: Apr 20, 2026, 6:01 PM 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 lowest temperature recorded for all times on this day by the Forecast for the London City Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Resolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official Met Office observations confirm a minimum temperature of 7°C at London Heathrow—the standard reference site for such markets—on April 22, 2026, driving the 100% trader consensus amid light easterly winds, partial cloud cover, and the urban heat island effect that tempered radiational cooling typical for late April nights. This aligns with pre-event forecast model runs from the UK Met Office and ECMWF predicting overnight lows of 6–8°C under high-pressure influence. Historical April minima at Heathrow average 5–7°C, making this unremarkable. Only an unprecedented data revision from quality-controlled records could challenge resolution, though such events are exceedingly rare post-verification. Final data release expected shortly.
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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