Recent model consensus from sources like GFS indicates Paris will see partly cloudy skies and westerly winds on September 4, supporting a daytime high near 28–29 °C, which aligns with the market’s leading implied probabilities of 47.5 % and 31.5 %. This exceeds the 1991–2020 average high of 23.2 °C for the date, reflecting a short-term warm anomaly. Ensemble forecasts show limited spread, with peaks constrained by moderate humidity and no strong advection of warmer air, while historical records above 30 °C remain rare. Traders appear to weigh the latest deterministic runs and diurnal timing against typical September variability ahead of overnight resolution.
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 September 4?
28°C 46%
29°C 33%
27°C 13%
30°C 6%
$12,860 Vol.
$12,860 Vol.
24°C or below
<1%
25°C
<1%
26°C
2%
27°C
13%
28°C
46%
29°C
33%
30°C
6%
31°C
2%
32°C
<1%
33°C
<1%
34°C or higher
<1%
28°C 46%
29°C 33%
27°C 13%
30°C 6%
$12,860 Vol.
$12,860 Vol.
24°C or below
<1%
25°C
<1%
26°C
2%
27°C
13%
28°C
46%
29°C
33%
30°C
6%
31°C
2%
32°C
<1%
33°C
<1%
34°C or higher
<1%
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=lfpb
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Market Opened: Sep 2, 2026, 12:55 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=lfpbResolver
0x69c47De9D...The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=lfpb
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=lfpbResolver
0x69c47De9D...Recent model consensus from sources like GFS indicates Paris will see partly cloudy skies and westerly winds on September 4, supporting a daytime high near 28–29 °C, which aligns with the market’s leading implied probabilities of 47.5 % and 31.5 %. This exceeds the 1991–2020 average high of 23.2 °C for the date, reflecting a short-term warm anomaly. Ensemble forecasts show limited spread, with peaks constrained by moderate humidity and no strong advection of warmer air, while historical records above 30 °C remain rare. Traders appear to weigh the latest deterministic runs and diurnal timing against typical September variability ahead of overnight 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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