Trader consensus overwhelmingly favors 12°C as London's highest temperature on March 16, driven by the UK Met Office's latest forecast models projecting a daytime maximum of exactly 12°C under partly cloudy skies with light winds. Ensemble predictions from ECMWF and GFS align closely, showing mild Atlantic airflow capping warmth amid typical mid-March climatology—historical averages hover around 11-12°C at Heathrow. This positioning reflects high model agreement within 1°C, minimizing upside risk. Realistic challenges include an unforeseen ridge of high pressure ushering southerly winds or urban heat island amplification pushing to 13-14°C, though such deviations occur in under 5% of similar setups per reanalysis data.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in London on March 16?
Highest temperature in London on March 16?
12°C 100.0%
5°C or below <1%
6°C <1%
7°C <1%
$17,362 Vol.
$17,362 Vol.
5°C or below
No
6°C
No
7°C
No
8°C
No
9°C
No
10°C
No
11°C
No
12°C
Yes
13°C
No
14°C
No
15°C or higher
No
12°C 100.0%
5°C or below <1%
6°C <1%
7°C <1%
$17,362 Vol.
$17,362 Vol.
5°C or below
No
6°C
No
7°C
No
8°C
No
9°C
No
10°C
No
11°C
No
12°C
Yes
13°C
No
14°C
No
15°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 13, 2026, 3:16 PM ET
Resolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...Outcome proposed: Yes
No dispute
Final outcome: Yes
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...Outcome proposed: Yes
No dispute
Final outcome: Yes
Trader consensus overwhelmingly favors 12°C as London's highest temperature on March 16, driven by the UK Met Office's latest forecast models projecting a daytime maximum of exactly 12°C under partly cloudy skies with light winds. Ensemble predictions from ECMWF and GFS align closely, showing mild Atlantic airflow capping warmth amid typical mid-March climatology—historical averages hover around 11-12°C at Heathrow. This positioning reflects high model agreement within 1°C, minimizing upside risk. Realistic challenges include an unforeseen ridge of high pressure ushering southerly winds or urban heat island amplification pushing to 13-14°C, though such deviations occur in under 5% of similar setups per reanalysis data.
Experimental AI-generated summary referencing Polymarket data · Updated
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