Trader sentiment clusters around 13°C (35.5%) and 14°C (30%) for London's highest temperature on March 22, propelled by the UK Met Office's latest forecast pegging the max at 13°C under cloudy skies with sunny spells, amid mild southerly airflow from the Atlantic. Ensemble models like ECMWF hint at 14°C potential if cloud breaks align with peak solar heating, while GFS leans cooler at 12-13°C due to overcast persistence. March norms average 11°C, but this spell's jet stream dip enables the upside; historical data shows 1-2°C model spreads often resolve within 0.5°C of ensembles. Traders eye hourly updates from Heathrow observations as the key differentiator.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in London on March 22?
Highest temperature in London on March 22?
13°C 36%
14°C 31%
12°C 18.8%
15°C 11%
$47,297 Vol.
$47,297 Vol.
7°C or below
<1%
8°C
<1%
9°C
<1%
10°C
1%
11°C
5%
12°C
19%
13°C
36%
14°C
31%
15°C
11%
16°C
1%
17°C or higher
<1%
13°C 36%
14°C 31%
12°C 18.8%
15°C 11%
$47,297 Vol.
$47,297 Vol.
7°C or below
<1%
8°C
<1%
9°C
<1%
10°C
1%
11°C
5%
12°C
19%
13°C
36%
14°C
31%
15°C
11%
16°C
1%
17°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.
Market Opened: Mar 18, 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 sentiment clusters around 13°C (35.5%) and 14°C (30%) for London's highest temperature on March 22, propelled by the UK Met Office's latest forecast pegging the max at 13°C under cloudy skies with sunny spells, amid mild southerly airflow from the Atlantic. Ensemble models like ECMWF hint at 14°C potential if cloud breaks align with peak solar heating, while GFS leans cooler at 12-13°C due to overcast persistence. March norms average 11°C, but this spell's jet stream dip enables the upside; historical data shows 1-2°C model spreads often resolve within 0.5°C of ensembles. Traders eye hourly updates from Heathrow observations as the key differentiator.
Experimental AI-generated summary referencing Polymarket data · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions