Trader consensus heavily favors a 13°C high in London on March 22, with 57% implied probability, driven by the latest Met Office and ECMWF model runs forecasting mild conditions under a high-pressure ridge channeling Atlantic warmth. Supporting 12°C (21%) and 14°C (20%) reflect ensemble spread, as upper-air patterns show slight variability in southerly flow strength. March climatology averages 11-12°C at Heathrow, but recent +1°C anomalies from reduced Arctic influence boost warmer odds; yesterday's GFS update nudged peaks upward from initial 12°C projections. Uncertainty lingers from potential cloud cover, but official observations will resolve via Heathrow or Northolt stations.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in London on March 22?
Highest temperature in London on March 22?
13°C 56%
12°C 21.3%
14°C 20%
15°C 2.6%
$86,476 Vol.
$86,476 Vol.
7°C or below
<1%
8°C
<1%
9°C
<1%
10°C
<1%
11°C
2%
12°C
21%
13°C
56%
14°C
20%
15°C
3%
16°C
<1%
17°C or higher
<1%
13°C 56%
12°C 21.3%
14°C 20%
15°C 2.6%
$86,476 Vol.
$86,476 Vol.
7°C or below
<1%
8°C
<1%
9°C
<1%
10°C
<1%
11°C
2%
12°C
21%
13°C
56%
14°C
20%
15°C
3%
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 consensus heavily favors a 13°C high in London on March 22, with 57% implied probability, driven by the latest Met Office and ECMWF model runs forecasting mild conditions under a high-pressure ridge channeling Atlantic warmth. Supporting 12°C (21%) and 14°C (20%) reflect ensemble spread, as upper-air patterns show slight variability in southerly flow strength. March climatology averages 11-12°C at Heathrow, but recent +1°C anomalies from reduced Arctic influence boost warmer odds; yesterday's GFS update nudged peaks upward from initial 12°C projections. Uncertainty lingers from potential cloud cover, but official observations will resolve via Heathrow or Northolt stations.
Experimental AI-generated summary referencing Polymarket data · Updated
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