Trader consensus clusters around 8–10°C for London's highest temperature on March 26, driven by the latest Met Office forecast indicating a daytime max near 9°C under mild southerly airflow and partial cloud cover. Ensemble models from ECMWF and UKMO show a mean of 8.5°C with a tight spread (±1.5°C), reflecting low-confidence short-range uncertainty from potential low-level cloud persistence or brief clear spells boosting insolation. Differentiating factors include urban heat island effects adding ~1°C in central London versus rural stations, and frontal timing—earlier clearance favors 10°C, delays cap at 8°C. Historical March 26 averages 10°C, but cooler soil temperatures limit extremes this early in spring. Upcoming 12Z model runs could shift odds further.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in London on March 26?
Highest temperature in London on March 26?
9°C 32%
8°C 28%
10°C 24%
7°C 10%
3°C or below
1%
4°C
1%
5°C
1%
6°C
4%
7°C
16%
8°C
28%
9°C
32%
10°C
19%
11°C
9%
12°C
7%
13°C or higher
2%
9°C 32%
8°C 28%
10°C 24%
7°C 10%
3°C or below
1%
4°C
1%
5°C
1%
6°C
4%
7°C
16%
8°C
28%
9°C
32%
10°C
19%
11°C
9%
12°C
7%
13°C or higher
2%
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 22, 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 clusters around 8–10°C for London's highest temperature on March 26, driven by the latest Met Office forecast indicating a daytime max near 9°C under mild southerly airflow and partial cloud cover. Ensemble models from ECMWF and UKMO show a mean of 8.5°C with a tight spread (±1.5°C), reflecting low-confidence short-range uncertainty from potential low-level cloud persistence or brief clear spells boosting insolation. Differentiating factors include urban heat island effects adding ~1°C in central London versus rural stations, and frontal timing—earlier clearance favors 10°C, delays cap at 8°C. Historical March 26 averages 10°C, but cooler soil temperatures limit extremes this early in spring. Upcoming 12Z model runs could shift odds further.
Experimental AI-generated summary referencing Polymarket data · Updated
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