**Latest model consensus from GFS and regional guidance points to an overnight low near 18–20°C in Zhengzhou on September 18, supported by light southerly to variable winds and partly to mostly cloudy skies that limit radiational cooling.** Current conditions show mild, humid air with highs in the mid-20s°C and no strong frontal passage or high-pressure ridge to drive extremes. Slight differences across forecasts—ranging from about 17°C to 20°C—stem mainly from uncertainty in cloud thickness and wind speed overnight, which control how much heat escapes to space. With the market closely split between the 15°C-or-below and 25°C-or-higher bins, traders appear focused on these narrow model spreads and any last-minute adjustments from updated runs ahead of the daily minimum observation. Historical September lows average near 17°C, placing the expected range within typical late-summer variability.
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 18?
Lowest temperature in Zhengzhou on September 18?
25°C or higher 93%
15°C or below 49%
16°C 40%
19°C 40%
NEW
NEW
Sep 18, 2026
15°C or below
49%
16°C
40%
17°C
22%
18°C
22%
19°C
40%
20°C
40%
21°C
40%
22°C
40%
23°C
40%
24°C
40%
25°C or higher
93%
25°C or higher 93%
15°C or below 49%
16°C 40%
19°C 40%
NEW
NEW
Sep 18, 2026
15°C or below
$0 Vol.
49%
16°C
$0 Vol.
40%
17°C
$0 Vol.
22%
18°C
$0 Vol.
22%
19°C
$0 Vol.
40%
20°C
$0 Vol.
40%
21°C
$0 Vol.
40%
22°C
$0 Vol.
40%
23°C
$0 Vol.
40%
24°C
$0 Vol.
40%
25°C or higher
$0 Vol.
93%
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 18 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.**Latest model consensus from GFS and regional guidance points to an overnight low near 18–20°C in Zhengzhou on September 18, supported by light southerly to variable winds and partly to mostly cloudy skies that limit radiational cooling.**
Current conditions show mild, humid air with highs in the mid-20s°C and no strong frontal passage or high-pressure ridge to drive extremes. Slight differences across forecasts—ranging from about 17°C to 20°C—stem mainly from uncertainty in cloud thickness and wind speed overnight, which control how much heat escapes to space. With the market closely split between the 15°C-or-below and 25°C-or-higher bins, traders appear focused on these narrow model spreads and any last-minute adjustments from updated runs ahead of the daily minimum observation. Historical September lows average near 17°C, placing the expected range within typical late-summer variability.
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 18 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 17, 2026, 12:28 AM ET
Volume
$0End Date
Sep 18, 2026Market Opened
Sep 17, 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 18 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.**Latest model consensus from GFS and regional guidance points to an overnight low near 18–20°C in Zhengzhou on September 18, supported by light southerly to variable winds and partly to mostly cloudy skies that limit radiational cooling.**
Current conditions show mild, humid air with highs in the mid-20s°C and no strong frontal passage or high-pressure ridge to drive extremes. Slight differences across forecasts—ranging from about 17°C to 20°C—stem mainly from uncertainty in cloud thickness and wind speed overnight, which control how much heat escapes to space. With the market closely split between the 15°C-or-below and 25°C-or-higher bins, traders appear focused on these narrow model spreads and any last-minute adjustments from updated runs ahead of the daily minimum observation. Historical September lows average near 17°C, placing the expected range within typical late-summer variability.
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 18 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
$0End Date
Sep 18, 2026Market Opened
Sep 17, 2026, 12:28 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=zhccResolver
0x69c47De9D...**Latest model consensus from GFS and regional guidance points to an overnight low near 18–20°C in Zhengzhou on September 18, supported by light southerly to variable winds and partly to mostly cloudy skies that limit radiational cooling.** Current conditions show mild, humid air with highs in the mid-20s°C and no strong frontal passage or high-pressure ridge to drive extremes. Slight differences across forecasts—ranging from about 17°C to 20°C—stem mainly from uncertainty in cloud thickness and wind speed overnight, which control how much heat escapes to space. With the market closely split between the 15°C-or-below and 25°C-or-higher bins, traders appear focused on these narrow model spreads and any last-minute adjustments from updated runs ahead of the daily minimum observation. Historical September lows average near 17°C, placing the expected range within typical late-summer variability.
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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