Trader consensus on Polymarket tilts toward a high of 16°C in London on March 24, driven by the latest UK Met Office and ECMWF ensemble forecasts projecting daytime maxima in the mid-teens Celsius amid a mild Atlantic high-pressure ridge. These odds reflect tight model clustering—UKMO ensembles average 15.8°C, while GFS runs skew slightly warmer at 16.5°C—differentiated by subtle variations in cloud cover and southerly winds that could suppress or boost peaks by 1-2°C. Historical March norms hover around 11-12°C, but recent mild anomalies and urban heat effects in London elevate expectations, with final resolution hinging on observations from Heathrow or central stations before evening.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in London on March 24?
Highest temperature in London on March 24?
14°C 34%
16°C 34%
17°C 26%
19°C or higher 25.6%
9°C or below
7%
10°C
6%
11°C
17%
12°C
17%
13°C
18%
14°C
19%
15°C
25%
16°C
29%
17°C
26%
18°C
18%
19°C or higher
26%
14°C 34%
16°C 34%
17°C 26%
19°C or higher 25.6%
9°C or below
7%
10°C
6%
11°C
17%
12°C
17%
13°C
18%
14°C
19%
15°C
25%
16°C
29%
17°C
26%
18°C
18%
19°C or higher
26%
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.
Market Opened: Mar 20, 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 tilts toward a high of 16°C in London on March 24, driven by the latest UK Met Office and ECMWF ensemble forecasts projecting daytime maxima in the mid-teens Celsius amid a mild Atlantic high-pressure ridge. These odds reflect tight model clustering—UKMO ensembles average 15.8°C, while GFS runs skew slightly warmer at 16.5°C—differentiated by subtle variations in cloud cover and southerly winds that could suppress or boost peaks by 1-2°C. Historical March norms hover around 11-12°C, but recent mild anomalies and urban heat effects in London elevate expectations, with final resolution hinging on observations from Heathrow or central stations before evening.
Experimental AI-generated summary referencing Polymarket data · Updated
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