Recent high-pressure systems over western Europe have stabilized atmospheric conditions across the Paris region, producing clear skies and moderate warming that latest numerical weather prediction models, including those from Météo-France, now project will peak at 23–24 °C on May 21. This consensus among ensemble runs, combined with observed surface temperatures climbing steadily through the prior 48 hours, underpins the market-implied odds favoring 24 °C at 48.5 percent while keeping 25 °C a close second. Minor model spread around afternoon maximums and the possibility of localized cooling from light variable winds introduce the residual probability for 23 °C outcomes. No significant frontal systems are expected before evening, preserving the current temperature trajectory.
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 May 21?
24°C 54%
25°C 31%
23°C 16%
26°C 3.3%
$33,810 Vol.
$33,810 Vol.
18°C or below
<1%
19°C
<1%
20°C
<1%
21°C
<1%
22°C
2%
23°C
16%
24°C
54%
25°C
31%
26°C
3%
27°C
1%
28°C or higher
<1%
24°C 54%
25°C 31%
23°C 16%
26°C 3.3%
$33,810 Vol.
$33,810 Vol.
18°C or below
<1%
19°C
<1%
20°C
<1%
21°C
<1%
22°C
2%
23°C
16%
24°C
54%
25°C
31%
26°C
3%
27°C
1%
28°C or higher
<1%
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 Paris-Le Bourget Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/fr/bonneuil-en-france/LFPB.
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: May 19, 2026, 1:04 AM ET
Resolver
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 Paris-Le Bourget Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/fr/bonneuil-en-france/LFPB.
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.
Resolver
0x69c47De9D...Recent high-pressure systems over western Europe have stabilized atmospheric conditions across the Paris region, producing clear skies and moderate warming that latest numerical weather prediction models, including those from Météo-France, now project will peak at 23–24 °C on May 21. This consensus among ensemble runs, combined with observed surface temperatures climbing steadily through the prior 48 hours, underpins the market-implied odds favoring 24 °C at 48.5 percent while keeping 25 °C a close second. Minor model spread around afternoon maximums and the possibility of localized cooling from light variable winds introduce the residual probability for 23 °C outcomes. No significant frontal systems are expected before evening, preserving the current temperature trajectory.
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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