Met Office observations from London stations, including central Greater London and Heathrow Airport, confirm the highest temperature on March 30, 2026, reached 12°C around 3-4 p.m. local time, with provisional data updated by late afternoon amid overcast skies and northwest winds limiting solar heating. This aligns with forecast model consensus from the UK Met Office, which predicted maxima in the 11-13°C range under a cool northerly airflow pattern typical for late March, cooler than mid-month peaks near 19-20°C. Trader consensus at 100% implied probability for 12°C reflects this skin-in-the-game alignment with authoritative measurements. Realistic challenges would require post hoc quality control revisions uncovering a higher unlogged peak, though such adjustments are rare for well-monitored urban sites; final daily extremes report expected soon.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in London on March 30?
Highest temperature in London on March 30?
12°C 100.0%
7°C or below <1%
8°C <1%
9°C <1%
$297,148 Vol.
$297,148 Vol.
7°C or below
No
8°C
No
9°C
No
10°C
No
11°C
No
12°C
Yes
13°C
No
14°C
No
15°C
No
16°C
No
17°C or higher
No
12°C 100.0%
7°C or below <1%
8°C <1%
9°C <1%
$297,148 Vol.
$297,148 Vol.
7°C or below
No
8°C
No
9°C
No
10°C
No
11°C
No
12°C
Yes
13°C
No
14°C
No
15°C
No
16°C
No
17°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 29, 2026, 1:49 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
Met Office observations from London stations, including central Greater London and Heathrow Airport, confirm the highest temperature on March 30, 2026, reached 12°C around 3-4 p.m. local time, with provisional data updated by late afternoon amid overcast skies and northwest winds limiting solar heating. This aligns with forecast model consensus from the UK Met Office, which predicted maxima in the 11-13°C range under a cool northerly airflow pattern typical for late March, cooler than mid-month peaks near 19-20°C. Trader consensus at 100% implied probability for 12°C reflects this skin-in-the-game alignment with authoritative measurements. Realistic challenges would require post hoc quality control revisions uncovering a higher unlogged peak, though such adjustments are rare for well-monitored urban sites; final daily extremes report expected soon.
Experimental AI-generated summary referencing Polymarket data · Updated
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