Trader consensus on Polymarket heavily favors 13°C (31.5%) and 12°C (26.0%) as London's highest temperature on March 27, driven by the latest Met Office and ECMWF ensemble forecasts projecting mild conditions with highs clustering around 12-13°C amid a high-pressure ridge over southern England. These models show a tight spread, with mean surface temperatures near 12.5°C, influenced by southerly winds drawing warmer Atlantic air but moderated by partial cloud cover limiting solar insolation. Differentiation hinges on boundary layer dynamics: clearer skies could push to 14°C via enhanced daytime heating, while increased stratiform cloud from a weakening frontal system caps at 12°C or below. Historical March 27 averages (11.8°C at Heathrow) and low volatility in spring ensembles support the narrow odds, with traders eyeing tomorrow's 12Z model updates for shifts.
Résumé expérimental généré par IA à partir des données Polymarket · Mis à jourHighest temperature in London on March 27?
Highest temperature in London on March 27?
13°C 30%
12°C 27%
14°C 17%
11°C 11%
8°C or below
1%
9°C
2%
10°C
6%
11°C
11%
12°C
27%
13°C
30%
14°C
17%
15°C
9%
16°C
2%
17°C
2%
18°C or higher
2%
13°C 30%
12°C 27%
14°C 17%
11°C 11%
8°C or below
1%
9°C
2%
10°C
6%
11°C
11%
12°C
27%
13°C
30%
14°C
17%
15°C
9%
16°C
2%
17°C
2%
18°C or higher
2%
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.
Marché ouvert : Mar 23, 2026, 6:01 AM ET
Resolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...Resolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...Trader consensus on Polymarket heavily favors 13°C (31.5%) and 12°C (26.0%) as London's highest temperature on March 27, driven by the latest Met Office and ECMWF ensemble forecasts projecting mild conditions with highs clustering around 12-13°C amid a high-pressure ridge over southern England. These models show a tight spread, with mean surface temperatures near 12.5°C, influenced by southerly winds drawing warmer Atlantic air but moderated by partial cloud cover limiting solar insolation. Differentiation hinges on boundary layer dynamics: clearer skies could push to 14°C via enhanced daytime heating, while increased stratiform cloud from a weakening frontal system caps at 12°C or below. Historical March 27 averages (11.8°C at Heathrow) and low volatility in spring ensembles support the narrow odds, with traders eyeing tomorrow's 12Z model updates for shifts.
Résumé expérimental généré par IA à partir des données Polymarket · Mis à jour
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