Tight market odds pitting 21°C (30.5%) against 20°C (29.0%) reflect forecast model consensus clustering around these values for the highest temperature at Paris Charles de Gaulle Airport on April 18, per recent Météo-France and ECMWF guidance showing mild highs of 20-21°C under overcast skies. A high-pressure ridge over Western Europe is advecting warmer southerly air masses, yielding above-seasonal averages (typically 15-16°C), but persistent cloud cover caps solar insolation and introduces uncertainty in peak heating during the afternoon maximum (around 2-4 p.m. local time). Discrepancies arise from high-resolution AROME models leaning cooler at 20°C due to thicker clouds, versus slightly warmer GFS runs near 22°C; stable outlooks over the past 48 hours show no major shifts, with evening updates potentially tipping trader sentiment.
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?
Highest temperature in Paris on April 18?
21°C 31%
20°C 29%
19°C 17%
22°C 15%
$36,722 Vol.
$36,722 Vol.
13°C or below
<1%
14°C
<1%
15°C
<1%
16°C
<1%
17°C
1%
18°C
5%
19°C
17%
20°C
29%
21°C
31%
22°C
15%
23°C or higher
4%
21°C 31%
20°C 29%
19°C 17%
22°C 15%
$36,722 Vol.
$36,722 Vol.
13°C or below
<1%
14°C
<1%
15°C
<1%
16°C
<1%
17°C
1%
18°C
5%
19°C
17%
20°C
29%
21°C
31%
22°C
15%
23°C or higher
4%
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...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...Tight market odds pitting 21°C (30.5%) against 20°C (29.0%) reflect forecast model consensus clustering around these values for the highest temperature at Paris Charles de Gaulle Airport on April 18, per recent Météo-France and ECMWF guidance showing mild highs of 20-21°C under overcast skies. A high-pressure ridge over Western Europe is advecting warmer southerly air masses, yielding above-seasonal averages (typically 15-16°C), but persistent cloud cover caps solar insolation and introduces uncertainty in peak heating during the afternoon maximum (around 2-4 p.m. local time). Discrepancies arise from high-resolution AROME models leaning cooler at 20°C due to thicker clouds, versus slightly warmer GFS runs near 22°C; stable outlooks over the past 48 hours show no major shifts, with evening updates potentially tipping trader sentiment.
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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