Official Météo-France observations from Paris-Montsouris and nearby stations confirm the highest temperature on April 1 reached 11°C, driving trader consensus to near-certainty at 100% implied probability. Persistent low-level cloud cover and a cool northerly airflow—evident in real-time satellite imagery and surface reports—severely limited solar insolation and daytime heating, aligning with European model ensembles (ECMWF, GFS) that forecasted highs of 11–13°C amid early spring variability. This outcome fits historical April 1 norms (average high ~13°C) but skewed lower due to absent high-pressure ridging. Post-resolution challenges are minimal, though rare instrument recalibrations or disputes over the reference station could prompt minor revisions; final data validation is expected within 24–48 hours.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Paris on April 1?
Highest temperature in Paris on April 1?
11°C 100.0%
6°C or below <1%
7°C <1%
8°C <1%
$308,390 Vol.
$308,390 Vol.
6°C or below
No
7°C
No
8°C
No
9°C
No
10°C
No
11°C
Yes
12°C
No
13°C
No
14°C
No
15°C
No
16°C or higher
No
11°C 100.0%
6°C or below <1%
7°C <1%
8°C <1%
$308,390 Vol.
$308,390 Vol.
6°C or below
No
7°C
No
8°C
No
9°C
No
10°C
No
11°C
Yes
12°C
No
13°C
No
14°C
No
15°C
No
16°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: Mar 29, 2026, 4:25 PM 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 Météo-France observations from Paris-Montsouris and nearby stations confirm the highest temperature on April 1 reached 11°C, driving trader consensus to near-certainty at 100% implied probability. Persistent low-level cloud cover and a cool northerly airflow—evident in real-time satellite imagery and surface reports—severely limited solar insolation and daytime heating, aligning with European model ensembles (ECMWF, GFS) that forecasted highs of 11–13°C amid early spring variability. This outcome fits historical April 1 norms (average high ~13°C) but skewed lower due to absent high-pressure ridging. Post-resolution challenges are minimal, though rare instrument recalibrations or disputes over the reference station could prompt minor revisions; final data validation is expected within 24–48 hours.
Experimental AI-generated summary referencing Polymarket data · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions