Recent forecasts from multiple models indicate clear skies, high pressure near 1030 hPa, and light northeast winds will drive strong daytime heating in Paris on September 22, pushing the daily maximum into the mid-20s Celsius. Consensus from GFS-based guidance and other sources centers on a peak between 24–25°C under mostly sunny conditions with negligible precipitation risk. The narrow market split between these two outcomes reflects minor differences across model runs in peak timing, boundary-layer mixing, and the precise reading at the official station. Historical September averages near 21°C provide context for the elevated anomaly, while the stable synoptic pattern limits upside risk beyond 25°C or downside below 24°C ahead of final observations.
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 22?
25°C 51%
24°C 44%
23°C 5%
26°C 5%
$27,046 Vol.
$27,046 Vol.
19°C or below
<1%
20°C
<1%
21°C
<1%
22°C
1%
23°C
5%
24°C
44%
25°C
51%
26°C
5%
27°C
<1%
28°C
<1%
29°C or higher
<1%
25°C 51%
24°C 44%
23°C 5%
26°C 5%
$27,046 Vol.
$27,046 Vol.
19°C or below
<1%
20°C
<1%
21°C
<1%
22°C
1%
23°C
5%
24°C
44%
25°C
51%
26°C
5%
27°C
<1%
28°C
<1%
29°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 20, 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 forecasts from multiple models indicate clear skies, high pressure near 1030 hPa, and light northeast winds will drive strong daytime heating in Paris on September 22, pushing the daily maximum into the mid-20s Celsius. Consensus from GFS-based guidance and other sources centers on a peak between 24–25°C under mostly sunny conditions with negligible precipitation risk. The narrow market split between these two outcomes reflects minor differences across model runs in peak timing, boundary-layer mixing, and the precise reading at the official station. Historical September averages near 21°C provide context for the elevated anomaly, while the stable synoptic pattern limits upside risk beyond 25°C or downside below 24°C ahead of final observations.
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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