Recent forecasts from multiple models indicate Zhengzhou's overnight low on September 21 will likely settle near 19–20°C amid persistent cloud cover, light rain, and high humidity near 90%, which limit radiative cooling. Light northerly winds and a stable pressure field around 1015–1017 hPa further moderate temperature drops, consistent with late-September climatology where average lows hover near 17°C but moist conditions often raise them by 2–3°C. Minor model spread in timing of showers and dew-point depression creates the tight contest between the two leading outcomes, while the low probability assigned to sub-16°C reflects the absence of any strong cold-air advection. Updated guidance expected overnight will refine the exact minimum.
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 21?
Lowest temperature in Zhengzhou on September 21?
15°C or below 90%
17°C 9%
18°C 3%
16°C 2%
NEW
NEW
Sep 21, 2026
15°C or below
90%
16°C
2%
17°C
9%
18°C
17%
19°C
49%
20°C
49%
21°C
<1%
22°C
<1%
23°C
<1%
24°C
<1%
25°C or higher
<1%
15°C or below 90%
17°C 9%
18°C 3%
16°C 2%
NEW
NEW
Sep 21, 2026
15°C or below
$10 Vol.
90%
16°C
$10 Vol.
2%
17°C
$58 Vol.
9%
18°C
$27 Vol.
17%
19°C
$11 Vol.
49%
20°C
$71 Vol.
49%
21°C
$306 Vol.
<1%
22°C
$162 Vol.
<1%
23°C
$41 Vol.
<1%
24°C
$37 Vol.
<1%
25°C or higher
$41 Vol.
<1%
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Zhengzhou Xinzheng International Airport Station in degrees Celsius on 21 Sep '26.
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.Recent forecasts from multiple models indicate Zhengzhou's overnight low on September 21 will likely settle near 19–20°C amid persistent cloud cover, light rain, and high humidity near 90%, which limit radiative cooling. Light northerly winds and a stable pressure field around 1015–1017 hPa further moderate temperature drops, consistent with late-September climatology where average lows hover near 17°C but moist conditions often raise them by 2–3°C. Minor model spread in timing of showers and dew-point depression creates the tight contest between the two leading outcomes, while the low probability assigned to sub-16°C reflects the absence of any strong cold-air advection. Updated guidance expected overnight will refine the exact minimum.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Zhengzhou Xinzheng International Airport Station in degrees Celsius on 21 Sep '26.
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.
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 20, 2026, 12:28 AM ET
Volume
$774End Date
Sep 21, 2026Market Opened
Sep 20, 2026, 12:28 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=zhccResolver
0x69c47De9D...This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Zhengzhou Xinzheng International Airport Station in degrees Celsius on 21 Sep '26.
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.Recent forecasts from multiple models indicate Zhengzhou's overnight low on September 21 will likely settle near 19–20°C amid persistent cloud cover, light rain, and high humidity near 90%, which limit radiative cooling. Light northerly winds and a stable pressure field around 1015–1017 hPa further moderate temperature drops, consistent with late-September climatology where average lows hover near 17°C but moist conditions often raise them by 2–3°C. Minor model spread in timing of showers and dew-point depression creates the tight contest between the two leading outcomes, while the low probability assigned to sub-16°C reflects the absence of any strong cold-air advection. Updated guidance expected overnight will refine the exact minimum.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Zhengzhou Xinzheng International Airport Station in degrees Celsius on 21 Sep '26.
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.
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.
Volume
$774End Date
Sep 21, 2026Market Opened
Sep 20, 2026, 12:28 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=zhccResolver
0x69c47De9D...Recent forecasts from multiple models indicate Zhengzhou's overnight low on September 21 will likely settle near 19–20°C amid persistent cloud cover, light rain, and high humidity near 90%, which limit radiative cooling. Light northerly winds and a stable pressure field around 1015–1017 hPa further moderate temperature drops, consistent with late-September climatology where average lows hover near 17°C but moist conditions often raise them by 2–3°C. Minor model spread in timing of showers and dew-point depression creates the tight contest between the two leading outcomes, while the low probability assigned to sub-16°C reflects the absence of any strong cold-air advection. Updated guidance expected overnight will refine the exact minimum.
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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