Trader consensus on Polymarket strongly favors 12°C (53.5% implied probability) as London's highest temperature on March 27, reflecting the latest Met Office long-range forecasts and ECMWF model ensembles projecting settled high-pressure conditions with mild early spring air masses. These models show daytime maxima clustering around 11–13°C, 1–2°C above the March climatological average of about 11°C at Heathrow, influenced by a weakening Atlantic jet stream allowing warmer southerly flows. Recent observational data from the past week indicates UK temperatures fluctuating between 8–14°C amid variable cloud cover, with no extreme anomalies driving outliers. Inherent forecast uncertainty persists due to potential shortwave troughs; daily updates from the Met Office expected in the next 48 hours could refine probabilities ahead of the event.
Resumo experimental gerado por IA com dados do Polymarket · AtualizadoHighest temperature in London on March 27?
Highest temperature in London on March 27?
12°C 55%
13°C 24%
11°C 19%
10°C 1.8%
$121,093 Vol.
$121,093 Vol.
8°C or below
<1%
9°C
<1%
10°C
2%
11°C
19%
12°C
55%
13°C
24%
14°C
2%
15°C
1%
16°C
<1%
17°C
<1%
18°C or higher
<1%
12°C 55%
13°C 24%
11°C 19%
10°C 1.8%
$121,093 Vol.
$121,093 Vol.
8°C or below
<1%
9°C
<1%
10°C
2%
11°C
19%
12°C
55%
13°C
24%
14°C
2%
15°C
1%
16°C
<1%
17°C
<1%
18°C or higher
<1%
The resolution source for this market will be information from Wunderground, specifically the highest 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.
Mercado Aberto: Mar 23, 2026, 6:01 AM ET
Resolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...The resolution source for this market will be information from Wunderground, specifically the highest 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...Trader consensus on Polymarket strongly favors 12°C (53.5% implied probability) as London's highest temperature on March 27, reflecting the latest Met Office long-range forecasts and ECMWF model ensembles projecting settled high-pressure conditions with mild early spring air masses. These models show daytime maxima clustering around 11–13°C, 1–2°C above the March climatological average of about 11°C at Heathrow, influenced by a weakening Atlantic jet stream allowing warmer southerly flows. Recent observational data from the past week indicates UK temperatures fluctuating between 8–14°C amid variable cloud cover, with no extreme anomalies driving outliers. Inherent forecast uncertainty persists due to potential shortwave troughs; daily updates from the Met Office expected in the next 48 hours could refine probabilities ahead of the event.
Resumo experimental gerado por IA com dados do Polymarket · Atualizado
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