Persistent rainfall and extensive cloud cover over Chongqing on September 18 are suppressing daytime heating, keeping forecast highs clustered in the mid-20s°C according to multiple models. Light to moderate rain, northeasterly flow under 3 m/s, and high humidity reduce solar insolation and evaporative cooling, favoring the market’s leading outcomes near 22–25°C. Thicker cloud decks or prolonged showers could cap the maximum at or below 23°C, while any temporary breaks in precipitation might allow brief warming toward 26°C. Historical September baselines near 28°C highlight how this unsettled pattern deviates from climatology. Fresh CMA and ECMWF runs in the next 48 hours will refine timing and intensity ahead of 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 Chongqing on September 18?
22°C or below 28%
23°C 26%
25°C 26%
24°C 22%
22°C or below
28%
23°C
26%
24°C
22%
25°C
26%
26°C
12%
27°C
3%
28°C
3%
29°C
2%
30°C
1%
31°C
1%
32°C or higher
2%
22°C or below 28%
23°C 26%
25°C 26%
24°C 22%
22°C or below
28%
23°C
26%
24°C
22%
25°C
26%
26°C
12%
27°C
3%
28°C
3%
29°C
2%
30°C
1%
31°C
1%
32°C or higher
2%
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 rainfall and extensive cloud cover over Chongqing on September 18 are suppressing daytime heating, keeping forecast highs clustered in the mid-20s°C according to multiple models. Light to moderate rain, northeasterly flow under 3 m/s, and high humidity reduce solar insolation and evaporative cooling, favoring the market’s leading outcomes near 22–25°C. Thicker cloud decks or prolonged showers could cap the maximum at or below 23°C, while any temporary breaks in precipitation might allow brief warming toward 26°C. Historical September baselines near 28°C highlight how this unsettled pattern deviates from climatology. Fresh CMA and ECMWF runs in the next 48 hours will refine timing and intensity ahead of 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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