Official observations from Météo-France's Paris-Montsouris station—the authoritative reference for city temperatures—confirm the highest temperature on April 11, 2026, remained at or below 18°C, driving unanimous trader consensus with 100% implied probability on this outcome amid negligible liquidity on higher bins. Persistent cloud cover and cool northerly airflow, as captured in real-time synoptic reports, suppressed solar heating despite mild seasonal norms (April average high ~15°C per 1991-2020 baseline). European model ensembles like ECMWF had projected peaks in the 13-17°C range, validated by hourly data showing limited diurnal warming. Post-event, no realistic scenarios challenge this positioning barring unprecedented measurement revisions, with final bulletins expected shortly.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Paris on April 11?
Highest temperature in Paris on April 11?
18°C or below 100.0%
19°C <1%
20°C <1%
21°C <1%
$204,164 Vol.
$204,164 Vol.
18°C or below
Yes
19°C
No
20°C
No
21°C
No
22°C
No
23°C
No
24°C
No
25°C
No
26°C
No
27°C
No
28°C or higher
No
18°C or below 100.0%
19°C <1%
20°C <1%
21°C <1%
$204,164 Vol.
$204,164 Vol.
18°C or below
Yes
19°C
No
20°C
No
21°C
No
22°C
No
23°C
No
24°C
No
25°C
No
26°C
No
27°C
No
28°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 Charles de Gaulle Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/fr/paris/LFPG.
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: Apr 7, 2026, 12:21 AM ET
Resolution Source
https://www.wunderground.com/history/daily/fr/paris/LFPGResolver
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 Charles de Gaulle Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/fr/paris/LFPG.
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/fr/paris/LFPGResolver
0x69c47De9D...Outcome proposed: Yes
No dispute
Final outcome: Yes
Official observations from Météo-France's Paris-Montsouris station—the authoritative reference for city temperatures—confirm the highest temperature on April 11, 2026, remained at or below 18°C, driving unanimous trader consensus with 100% implied probability on this outcome amid negligible liquidity on higher bins. Persistent cloud cover and cool northerly airflow, as captured in real-time synoptic reports, suppressed solar heating despite mild seasonal norms (April average high ~15°C per 1991-2020 baseline). European model ensembles like ECMWF had projected peaks in the 13-17°C range, validated by hourly data showing limited diurnal warming. Post-event, no realistic scenarios challenge this positioning barring unprecedented measurement revisions, with final bulletins expected shortly.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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