Ensemble forecasts from ECMWF, GFS, and Météo-France drive the tight race between 10°C (38.5% implied probability) and 9°C (33%), projecting Paris highs in this range under persistent cool northerly airflow and scattered clouds on March 26. Historical averages hover around 11-12°C, but a lingering post-winter cold pool and low sun angle suppress peaks, with urban heat island effects at CDG station potentially nudging toward 10°C. Model ensembles show ±1°C spread from cloud cover uncertainty and diurnal timing, differentiating outcomes; traders await 12Z updates, as even minor shifts in boundary layer mixing could tip resolution based on official observations.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Paris on March 26?
Highest temperature in Paris on March 26?
10°C 39%
9°C 33%
11°C 15%
8°C 7%
$21,196 Vol.
$21,196 Vol.
4°C or below
<1%
5°C
<1%
6°C
1%
7°C
2%
8°C
7%
9°C
33%
10°C
39%
11°C
15%
12°C
5%
13°C
2%
14°C or higher
1%
10°C 39%
9°C 33%
11°C 15%
8°C 7%
$21,196 Vol.
$21,196 Vol.
4°C or below
<1%
5°C
<1%
6°C
1%
7°C
2%
8°C
7%
9°C
33%
10°C
39%
11°C
15%
12°C
5%
13°C
2%
14°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 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 22, 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...Ensemble forecasts from ECMWF, GFS, and Météo-France drive the tight race between 10°C (38.5% implied probability) and 9°C (33%), projecting Paris highs in this range under persistent cool northerly airflow and scattered clouds on March 26. Historical averages hover around 11-12°C, but a lingering post-winter cold pool and low sun angle suppress peaks, with urban heat island effects at CDG station potentially nudging toward 10°C. Model ensembles show ±1°C spread from cloud cover uncertainty and diurnal timing, differentiating outcomes; traders await 12Z updates, as even minor shifts in boundary layer mixing could tip resolution based on official observations.
Experimental AI-generated summary referencing Polymarket data · Updated
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