Trader consensus overwhelmingly favors 13°C as London's highest temperature on March 22, driven by the latest Met Office forecast predicting a maximum of 13°C under persistent cloud cover and light winds from the northwest. Ensemble models from ECMWF and GFS align closely, showing capped daytime heating due to a stable high-pressure ridge overhead, consistent with historical March norms where London rarely exceeds 14°C without sunny spells. Recent updates confirm no warm air advection, solidifying market-implied odds near 100%. Realistic challenges include an unforeseen clearance of clouds or a sudden southerly breeze pushing air masses northward, though upper-air patterns make this improbable without major model revisions.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in London on March 22?
Highest temperature in London on March 22?
13°C 100.0%
7°C or below <1%
8°C <1%
9°C <1%
$0.00 Vol.
$0.00 Vol.
7°C or below
No
8°C
No
9°C
No
10°C
No
11°C
No
12°C
No
13°C
Yes
14°C
No
15°C
No
16°C
No
17°C or higher
No
13°C 100.0%
7°C or below <1%
8°C <1%
9°C <1%
$0.00 Vol.
$0.00 Vol.
7°C or below
No
8°C
No
9°C
No
10°C
No
11°C
No
12°C
No
13°C
Yes
14°C
No
15°C
No
16°C
No
17°C or higher
No
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 18, 2026, 6:01 AM ET
Resolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Resolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...Trader consensus overwhelmingly favors 13°C as London's highest temperature on March 22, driven by the latest Met Office forecast predicting a maximum of 13°C under persistent cloud cover and light winds from the northwest. Ensemble models from ECMWF and GFS align closely, showing capped daytime heating due to a stable high-pressure ridge overhead, consistent with historical March norms where London rarely exceeds 14°C without sunny spells. Recent updates confirm no warm air advection, solidifying market-implied odds near 100%. Realistic challenges include an unforeseen clearance of clouds or a sudden southerly breeze pushing air masses northward, though upper-air patterns make this improbable without major model revisions.
Experimental AI-generated summary referencing Polymarket data · Updated
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