Persistent rain and extensive cloud cover forecast for Chongqing on September 18 are suppressing daytime heating, with numerical models from sources like Yr and WeatherBug projecting maximum temperatures clustered in the low-to-mid 20s Celsius amid high humidity and light winds. This aligns with the market-implied odds favoring 23°C, as traders weigh the cooling effects of precipitation and reduced insolation against potential shortwave breaks that could allow modest warming to 25–26°C. Model spread on exact cloud thickness and timing creates genuine uncertainty between the closely matched 23°C and 24°C outcomes, while historical September baselines near 28°C underscore how atypical synoptic conditions are anchoring sentiment toward cooler resolution thresholds.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Chongqing on September 18?
23°C 27%
22°C or below 25%
24°C 19%
25°C 16%
22°C or below
25%
23°C
27%
24°C
19%
25°C
16%
26°C
15%
27°C
6%
28°C
1%
29°C
<1%
30°C
1%
31°C
<1%
32°C or higher
<1%
23°C 27%
22°C or below 25%
24°C 19%
25°C 16%
22°C or below
25%
23°C
27%
24°C
19%
25°C
16%
26°C
15%
27°C
6%
28°C
1%
29°C
<1%
30°C
1%
31°C
<1%
32°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=zuck
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 16, 2026, 12:57 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=zuckResolver
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=zuck
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=zuckResolver
0x69c47De9D...Persistent rain and extensive cloud cover forecast for Chongqing on September 18 are suppressing daytime heating, with numerical models from sources like Yr and WeatherBug projecting maximum temperatures clustered in the low-to-mid 20s Celsius amid high humidity and light winds. This aligns with the market-implied odds favoring 23°C, as traders weigh the cooling effects of precipitation and reduced insolation against potential shortwave breaks that could allow modest warming to 25–26°C. Model spread on exact cloud thickness and timing creates genuine uncertainty between the closely matched 23°C and 24°C outcomes, while historical September baselines near 28°C underscore how atypical synoptic conditions are anchoring sentiment toward cooler resolution thresholds.
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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