Traders assign near-certain implied probability to a 25°C high in Paris on September 5, 2026, reflecting consistent official forecasts and real-time observations from Météo-France and regional models. Afternoon conditions featured partly cloudy to mostly clear skies, light northwest winds shifting easterly, and temperatures climbing steadily from morning lows near 15°C to a verified peak of 25°C under stable high pressure around 1024 hPa. This aligns closely with the 1991–2020 climatological average high of 23°C while remaining well below recent extremes such as the 34.1°C record set in 2023. Late-day model runs showed minimal spread, with no significant warm advection or urban heat-island amplification expected to push readings higher before sunset. Only an unanticipated measurement revision or localized microclimate spike could alter the outcome.
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 5?
25°C 100.0%
26°C <1%
20°C or below <1%
21°C <1%
$66,228 Vol.
$66,228 Vol.
20°C or below
<1%
21°C
<1%
22°C
<1%
23°C
<1%
24°C
<1%
25°C
100%
26°C
<1%
27°C
<1%
28°C
<1%
29°C
<1%
30°C or higher
<1%
25°C 100.0%
26°C <1%
20°C or below <1%
21°C <1%
$66,228 Vol.
$66,228 Vol.
20°C or below
<1%
21°C
<1%
22°C
<1%
23°C
<1%
24°C
<1%
25°C
100%
26°C
<1%
27°C
<1%
28°C
<1%
29°C
<1%
30°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 3, 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...Traders assign near-certain implied probability to a 25°C high in Paris on September 5, 2026, reflecting consistent official forecasts and real-time observations from Météo-France and regional models. Afternoon conditions featured partly cloudy to mostly clear skies, light northwest winds shifting easterly, and temperatures climbing steadily from morning lows near 15°C to a verified peak of 25°C under stable high pressure around 1024 hPa. This aligns closely with the 1991–2020 climatological average high of 23°C while remaining well below recent extremes such as the 34.1°C record set in 2023. Late-day model runs showed minimal spread, with no significant warm advection or urban heat-island amplification expected to push readings higher before sunset. Only an unanticipated measurement revision or localized microclimate spike could alter the outcome.
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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