Recent ensemble forecasts from the European Centre for Medium-Range Weather Forecasts and Météo-France place the most probable overnight minimum temperature in Paris on May 20 between 11°C and 14°C, consistent with the tightly clustered market-implied odds for those outcomes. A shift toward milder Atlantic flow and reduced cloud cover is expected to moderate the cooler early-May pattern observed in recent days, though model spreads remain notable due to uncertainties in boundary-layer cooling rates and localized wind speeds overnight. Historical May averages near 9–10°C provide baseline context, yet current guidance favors a narrower range above typical lows. Updated model runs scheduled for the next 48 hours will refine these probabilities ahead of the May 20 resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Paris on May 20?
12°C 23%
13°C 20%
14°C 19%
11°C 18%
6°C or below
1%
7°C
8%
8°C
5%
9°C
5%
10°C
5%
11°C
21%
12°C
23%
13°C
20%
14°C
19%
15°C
5%
16°C or higher
4%
12°C 23%
13°C 20%
14°C 19%
11°C 18%
6°C or below
1%
7°C
8%
8°C
5%
9°C
5%
10°C
5%
11°C
21%
12°C
23%
13°C
20%
14°C
19%
15°C
5%
16°C or higher
4%
The resolution source for this market will be information from Wunderground, specifically the lowest 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 16, 2026, 12:30 AM ET
The resolution source for this market will be information from Wunderground, specifically the lowest 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.
Recent ensemble forecasts from the European Centre for Medium-Range Weather Forecasts and Météo-France place the most probable overnight minimum temperature in Paris on May 20 between 11°C and 14°C, consistent with the tightly clustered market-implied odds for those outcomes. A shift toward milder Atlantic flow and reduced cloud cover is expected to moderate the cooler early-May pattern observed in recent days, though model spreads remain notable due to uncertainties in boundary-layer cooling rates and localized wind speeds overnight. Historical May averages near 9–10°C provide baseline context, yet current guidance favors a narrower range above typical lows. Updated model runs scheduled for the next 48 hours will refine these probabilities ahead of the May 20 resolution.
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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