Trader consensus on Polymarket heavily favors a Paris high of 17°C (42%) or 16°C (36%) on March 23, driven by the latest ECMWF and GFS ensemble forecasts converging on mild conditions under a persistent high-pressure ridge ushering southerly winds and above-normal temperatures. Météo-France models align closely, projecting peaks between 15-18°C amid low precipitation risk, a departure from the historical March 23 average of 12°C. The tight race reflects inherent model spread of about 1°C, influenced by urban heat island effects at official stations like Paris-Montsouris, variable afternoon cloudiness, and boundary layer stability—factors that could nudge the diurnal maximum up or down by a degree, keeping lower outcomes like 18°C at just 11%.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Paris on March 23?
Highest temperature in Paris on March 23?
17°C 44%
16°C 36%
18°C 11%
15°C 8%
$31,879 Vol.
$31,879 Vol.
10°C or below
<1%
11°C
<1%
12°C
<1%
13°C
1%
14°C
1%
15°C
8%
16°C
36%
17°C
44%
18°C
11%
19°C
2%
20°C or higher
1%
17°C 44%
16°C 36%
18°C 11%
15°C 8%
$31,879 Vol.
$31,879 Vol.
10°C or below
<1%
11°C
<1%
12°C
<1%
13°C
1%
14°C
1%
15°C
8%
16°C
36%
17°C
44%
18°C
11%
19°C
2%
20°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 19, 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...Trader consensus on Polymarket heavily favors a Paris high of 17°C (42%) or 16°C (36%) on March 23, driven by the latest ECMWF and GFS ensemble forecasts converging on mild conditions under a persistent high-pressure ridge ushering southerly winds and above-normal temperatures. Météo-France models align closely, projecting peaks between 15-18°C amid low precipitation risk, a departure from the historical March 23 average of 12°C. The tight race reflects inherent model spread of about 1°C, influenced by urban heat island effects at official stations like Paris-Montsouris, variable afternoon cloudiness, and boundary layer stability—factors that could nudge the diurnal maximum up or down by a degree, keeping lower outcomes like 18°C at just 11%.
Experimental AI-generated summary referencing Polymarket data · Updated
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