Tight competition between 17°C (36.5%) and 16°C (29%) odds stems from latest ECMWF and Météo-France ensemble forecasts converging on a high-pressure ridge fostering mild southerly airflow over Paris on March 20, with deterministic runs peaking at 16-18°C amid persistent positive temperature anomalies from a warmer-than-average winter. Climatological March highs average 12°C, but geopotential height patterns signal +4-6°C deviations; GFS models differentiate cooler at 16°C via projected afternoon cloud cover and light winds, while Euro ensembles tilt warmer toward 18°C under partly sunny skies. Traders eye 12Z updates and official station data (e.g., Paris-Montsouris), where 1°C measurement uncertainty and urban heat islands could sway resolution.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Paris on March 20?
Highest temperature in Paris on March 20?
17°C 36%
16°C 29%
18°C 20.2%
19°C or higher 8.3%
$20,827 Vol.
$20,827 Vol.
9°C or below
<1%
10°C
1%
11°C
<1%
12°C
1%
13°C
1%
14°C
1%
15°C
7%
16°C
29%
17°C
36%
18°C
20%
19°C or higher
8%
17°C 36%
16°C 29%
18°C 20.2%
19°C or higher 8.3%
$20,827 Vol.
$20,827 Vol.
9°C or below
<1%
10°C
1%
11°C
<1%
12°C
1%
13°C
1%
14°C
1%
15°C
7%
16°C
29%
17°C
36%
18°C
20%
19°C or higher
8%
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 16, 2026, 6:01 AM ET
Resolution Source
https://www.wunderground.com/history/daily/fr/paris/LFPGResolver
0x69c47De9D...Resolution Source
https://www.wunderground.com/history/daily/fr/paris/LFPGResolver
0x69c47De9D...Tight competition between 17°C (36.5%) and 16°C (29%) odds stems from latest ECMWF and Météo-France ensemble forecasts converging on a high-pressure ridge fostering mild southerly airflow over Paris on March 20, with deterministic runs peaking at 16-18°C amid persistent positive temperature anomalies from a warmer-than-average winter. Climatological March highs average 12°C, but geopotential height patterns signal +4-6°C deviations; GFS models differentiate cooler at 16°C via projected afternoon cloud cover and light winds, while Euro ensembles tilt warmer toward 18°C under partly sunny skies. Traders eye 12Z updates and official station data (e.g., Paris-Montsouris), where 1°C measurement uncertainty and urban heat islands could sway resolution.
Experimental AI-generated summary referencing Polymarket data · Updated
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