Recent forecasts for Zhengzhou indicate an overnight low near 18–19°C under mostly overcast skies with light southerly winds and moderate humidity, limiting clear-sky radiative cooling. Multiple models converge on this range amid a gradual seasonal cooling trend, though slight differences in predicted cloud persistence and wind speed create uncertainty between 17°C and 18°C outcomes. Historical September lows average around 18°C, providing context for the tight market spread. Updated observations through the night will determine the precise minimum recorded by official stations.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Zhengzhou on September 16?
18°C 99.5%
16°C 1.0%
17°C 1.0%
15°C or below <1%
$674 Vol.
$674 Vol.
15°C or below
No
16°C
No
17°C
No
18°C
Yes
19°C
No
20°C
No
21°C
No
22°C
No
23°C
No
24°C
No
25°C or higher
No
18°C 99.5%
16°C 1.0%
17°C 1.0%
15°C or below <1%
$674 Vol.
$674 Vol.
15°C or below
No
16°C
No
17°C
No
18°C
Yes
19°C
No
20°C
No
21°C
No
22°C
No
23°C
No
24°C
No
25°C or higher
No
The resolution source for this market will be information from NOAA, specifically the lowest 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 15, 2026, 12:28 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=zhccResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
The resolution source for this market will be information from NOAA, specifically the lowest 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...Outcome proposed: No
No dispute
Final outcome: No
Recent forecasts for Zhengzhou indicate an overnight low near 18–19°C under mostly overcast skies with light southerly winds and moderate humidity, limiting clear-sky radiative cooling. Multiple models converge on this range amid a gradual seasonal cooling trend, though slight differences in predicted cloud persistence and wind speed create uncertainty between 17°C and 18°C outcomes. Historical September lows average around 18°C, providing context for the tight market spread. Updated observations through the night will determine the precise minimum recorded by official stations.
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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