Recent forecasts for Zhengzhou indicate persistent cloud cover, light rain, and northerly winds will suppress daytime heating on September 21, keeping maximum temperatures in the low-to-mid 20s °C. Multiple models show highs near 23–25 °C amid 50 % or higher precipitation chances and high humidity, well below the September average of roughly 29 °C. This pattern aligns with the market-implied 49 % probability on 22 °C or below and the combined weight on 23–25 °C outcomes, as traders price in limited solar radiation and evaporative cooling. Official Chinese Meteorological Administration observations will determine the exact peak, with any clearing trend or model shift potentially altering 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 Zhengzhou on September 21?
22°C or below 98%
24°C 40%
25°C 40%
23°C 37%
22°C or below
98%
23°C
37%
24°C
40%
25°C
40%
26°C
28%
27°C
15%
28°C
13%
29°C
4%
30°C
4%
31°C
2%
32°C or higher
2%
22°C or below 98%
24°C 40%
25°C 40%
23°C 37%
22°C or below
98%
23°C
37%
24°C
40%
25°C
40%
26°C
28%
27°C
15%
28°C
13%
29°C
4%
30°C
4%
31°C
2%
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=zhcc
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=zhccResolver
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=zhcc
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=zhccResolver
0x69c47De9D...Recent forecasts for Zhengzhou indicate persistent cloud cover, light rain, and northerly winds will suppress daytime heating on September 21, keeping maximum temperatures in the low-to-mid 20s °C. Multiple models show highs near 23–25 °C amid 50 % or higher precipitation chances and high humidity, well below the September average of roughly 29 °C. This pattern aligns with the market-implied 49 % probability on 22 °C or below and the combined weight on 23–25 °C outcomes, as traders price in limited solar radiation and evaporative cooling. Official Chinese Meteorological Administration observations will determine the exact peak, with any clearing trend or model shift potentially altering 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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