Official observations from Paris-Charles de Gaulle Airport (LFPG), the resolution station per Météo-France METAR data, confirm the highest temperature reached 22°C on April 18, 2026, driving trader consensus to 100% implied probability on this outcome. Hourly readings peaked around midday under partly cloudy skies and light winds, aligning with pre-event forecast models from NOAA and ECMWF predicting mild highs in the low-20s°C amid a high-pressure ridge over Western Europe. This reflects typical mid-April climatology for Paris, with average highs near 16°C but recent warming trends boosting spring maxima. Realistic challenges are minimal post-verification—only a rare data quality review or sensor recalibration could revise the figure, though official summaries rarely change after 24 hours.
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 18?
22°C 100.0%
13°C or below <1%
14°C <1%
15°C <1%
$244,217 Vol.
$244,217 Vol.
13°C or below
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C
No
21°C
No
22°C
Yes
23°C or higher
No
22°C 100.0%
13°C or below <1%
14°C <1%
15°C <1%
$244,217 Vol.
$244,217 Vol.
13°C or below
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C
No
21°C
No
22°C
Yes
23°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 16, 2026, 12:40 AM ET
Resolution Source
https://www.wunderground.com/history/daily/fr/paris/LFPGResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: 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.
Resolution Source
https://www.wunderground.com/history/daily/fr/paris/LFPGResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official observations from Paris-Charles de Gaulle Airport (LFPG), the resolution station per Météo-France METAR data, confirm the highest temperature reached 22°C on April 18, 2026, driving trader consensus to 100% implied probability on this outcome. Hourly readings peaked around midday under partly cloudy skies and light winds, aligning with pre-event forecast models from NOAA and ECMWF predicting mild highs in the low-20s°C amid a high-pressure ridge over Western Europe. This reflects typical mid-April climatology for Paris, with average highs near 16°C but recent warming trends boosting spring maxima. Realistic challenges are minimal post-verification—only a rare data quality review or sensor recalibration could revise the figure, though official summaries rarely change after 24 hours.
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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