Current forecast models from the Met Office and ECMWF indicate significant uncertainty in overnight minimum temperatures for London on May 21, driven by variable cloud cover and potential radiative cooling under clear skies. Ensemble runs show a wide spread, with some solutions favoring calm conditions that could allow the mercury to dip to 7°C or below, while others point to milder southerly flow keeping lows near or above 17°C. Historical May climatology places typical overnight lows around 8–10°C, but shifting high-pressure patterns and Atlantic moisture could alter this baseline. Traders are closely monitoring the next model updates and surface observations for clearer signals on wind speeds and humidity, which directly influence how far temperatures fall after sunset.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-updateLowest temperature in London on May 21?
7°C or below 41%
17°C or higher 41%
12°C 20%
13°C 20%
7°C or below
41%
8°C
11%
9°C
14%
10°C
16%
11°C
20%
12°C
20%
13°C
20%
14°C
18%
15°C
14%
16°C
9%
17°C or higher
41%
7°C or below 41%
17°C or higher 41%
12°C 20%
13°C 20%
7°C or below
41%
8°C
11%
9°C
14%
10°C
16%
11°C
20%
12°C
20%
13°C
20%
14°C
18%
15°C
14%
16°C
9%
17°C or higher
41%
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.
Binuksan ang Market: May 17, 2026, 12:30 AM ET
Resolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCThe 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/EGLCCurrent forecast models from the Met Office and ECMWF indicate significant uncertainty in overnight minimum temperatures for London on May 21, driven by variable cloud cover and potential radiative cooling under clear skies. Ensemble runs show a wide spread, with some solutions favoring calm conditions that could allow the mercury to dip to 7°C or below, while others point to milder southerly flow keeping lows near or above 17°C. Historical May climatology places typical overnight lows around 8–10°C, but shifting high-pressure patterns and Atlantic moisture could alter this baseline. Traders are closely monitoring the next model updates and surface observations for clearer signals on wind speeds and humidity, which directly influence how far temperatures fall after sunset.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-update
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