Trader consensus on Polymarket strongly implies a highest temperature of 12°C (61.5%) in London on March 27, aligned with the latest Met Office and ECMWF ensemble forecasts projecting mild highs of 12-13°C amid a high-pressure ridge ushering in Atlantic air after last week's colder northerly outflows. Recent model runs, updated within the past 24 hours, show consensus on light winds and variable cloud cover capping daytime warming, with 13°C (27.5%) viable if clearer skies prevail, while extremes like 11°C or 14°C+ remain low-probability outliers due to stable synoptic patterns. Historical late-March averages hover near 11°C, but current warming trends support this positioning; fresh guidance from the next forecast cycle tomorrow could shift odds as resolution nears.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in London on March 27?
Highest temperature in London on March 27?
12°C 56%
13°C 32%
14°C 4.7%
11°C 2.6%
$185,518 Vol.
$185,518 Vol.
8°C or below
<1%
9°C
<1%
10°C
<1%
11°C
3%
12°C
56%
13°C
32%
14°C
5%
15°C
<1%
16°C
<1%
17°C
<1%
18°C or higher
<1%
12°C 56%
13°C 32%
14°C 4.7%
11°C 2.6%
$185,518 Vol.
$185,518 Vol.
8°C or below
<1%
9°C
<1%
10°C
<1%
11°C
3%
12°C
56%
13°C
32%
14°C
5%
15°C
<1%
16°C
<1%
17°C
<1%
18°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 23, 2026, 6:01 AM ET
Resolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...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...Trader consensus on Polymarket strongly implies a highest temperature of 12°C (61.5%) in London on March 27, aligned with the latest Met Office and ECMWF ensemble forecasts projecting mild highs of 12-13°C amid a high-pressure ridge ushering in Atlantic air after last week's colder northerly outflows. Recent model runs, updated within the past 24 hours, show consensus on light winds and variable cloud cover capping daytime warming, with 13°C (27.5%) viable if clearer skies prevail, while extremes like 11°C or 14°C+ remain low-probability outliers due to stable synoptic patterns. Historical late-March averages hover near 11°C, but current warming trends support this positioning; fresh guidance from the next forecast cycle tomorrow could shift odds as resolution nears.
Experimental AI-generated summary referencing Polymarket data · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions