Forecast models from agencies including China's meteorological services point to an overnight low near 25°C in Zhengzhou on August 21, driven by high humidity, scattered thundershowers, and limited radiative cooling under partly cloudy skies amid the ongoing East Asian monsoon. Persistent warmth from recent days, with daytime highs around 31–32°C and minimal wind, reduces the typical nocturnal drop, while urban heat effects in the city further support readings at or above 24–25°C. Slight differences among ensemble runs—particularly in shower timing or cloud thickness—create the tight split between 25°C+ and 24°C outcomes, with lower probabilities for 22–23°C reflecting the low chance of clearer, calmer conditions that would enhance cooling. Updated short-range guidance expected later today will likely refine the exact minimum before resolution.
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 August 21?
Lowest temperature in Zhengzhou on August 21?
22°C 83%
23°C 78%
21°C 76%
20°C 67%
$1,237 Vol.
$1,237 Vol.
Aug 21, 2026
15°C or below
<1%
16°C
<1%
17°C
<1%
18°C
<1%
19°C
<1%
20°C
67%
21°C
76%
22°C
83%
23°C
78%
24°C
37%
25°C or higher
68%
22°C 83%
23°C 78%
21°C 76%
20°C 67%
$1,237 Vol.
$1,237 Vol.
Aug 21, 2026
15°C or below
$130 Vol.
<1%
16°C
$130 Vol.
<1%
17°C
$174 Vol.
<1%
18°C
$54 Vol.
<1%
19°C
$94 Vol.
<1%
20°C
$122 Vol.
67%
21°C
$111 Vol.
76%
22°C
$119 Vol.
83%
23°C
$94 Vol.
78%
24°C
$11 Vol.
37%
25°C or higher
$199 Vol.
68%
This market will resolve based on the lowest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the lowest temperature recorded at the Zhengzhou Xinzheng International Airport Station in degrees Celsius on 21 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the lowest temperature recorded for all times on this day for the Zhengzhou Xinzheng International Airport Station, available here: https://www.wunderground.com/history/daily/cn/zhengzhou/ZHCC.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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.Forecast models from agencies including China's meteorological services point to an overnight low near 25°C in Zhengzhou on August 21, driven by high humidity, scattered thundershowers, and limited radiative cooling under partly cloudy skies amid the ongoing East Asian monsoon. Persistent warmth from recent days, with daytime highs around 31–32°C and minimal wind, reduces the typical nocturnal drop, while urban heat effects in the city further support readings at or above 24–25°C. Slight differences among ensemble runs—particularly in shower timing or cloud thickness—create the tight split between 25°C+ and 24°C outcomes, with lower probabilities for 22–23°C reflecting the low chance of clearer, calmer conditions that would enhance cooling. Updated short-range guidance expected later today will likely refine the exact minimum before resolution.
This market will resolve based on the lowest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the lowest temperature recorded at the Zhengzhou Xinzheng International Airport Station in degrees Celsius on 21 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the lowest temperature recorded for all times on this day for the Zhengzhou Xinzheng International Airport Station, available here: https://www.wunderground.com/history/daily/cn/zhengzhou/ZHCC.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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.
This market will resolve to the temperature range that contains the lowest temperature recorded at the Zhengzhou Xinzheng International Airport Station in degrees Celsius on 21 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the lowest temperature recorded for all times on this day for the Zhengzhou Xinzheng International Airport Station, available here: https://www.wunderground.com/history/daily/cn/zhengzhou/ZHCC.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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: Aug 20, 2026, 1:31 PM ET
Volume
$1,237End Date
Aug 21, 2026Market Opened
Aug 20, 2026, 1:31 PM ETResolution Source
https://www.wunderground.com/history/daily/cn/zhengzhou/ZHCCResolver
0x69c47De9D...This market will resolve based on the lowest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the lowest temperature recorded at the Zhengzhou Xinzheng International Airport Station in degrees Celsius on 21 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the lowest temperature recorded for all times on this day for the Zhengzhou Xinzheng International Airport Station, available here: https://www.wunderground.com/history/daily/cn/zhengzhou/ZHCC.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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.Forecast models from agencies including China's meteorological services point to an overnight low near 25°C in Zhengzhou on August 21, driven by high humidity, scattered thundershowers, and limited radiative cooling under partly cloudy skies amid the ongoing East Asian monsoon. Persistent warmth from recent days, with daytime highs around 31–32°C and minimal wind, reduces the typical nocturnal drop, while urban heat effects in the city further support readings at or above 24–25°C. Slight differences among ensemble runs—particularly in shower timing or cloud thickness—create the tight split between 25°C+ and 24°C outcomes, with lower probabilities for 22–23°C reflecting the low chance of clearer, calmer conditions that would enhance cooling. Updated short-range guidance expected later today will likely refine the exact minimum before resolution.
This market will resolve based on the lowest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the lowest temperature recorded at the Zhengzhou Xinzheng International Airport Station in degrees Celsius on 21 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the lowest temperature recorded for all times on this day for the Zhengzhou Xinzheng International Airport Station, available here: https://www.wunderground.com/history/daily/cn/zhengzhou/ZHCC.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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.
This market will resolve to the temperature range that contains the lowest temperature recorded at the Zhengzhou Xinzheng International Airport Station in degrees Celsius on 21 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the lowest temperature recorded for all times on this day for the Zhengzhou Xinzheng International Airport Station, available here: https://www.wunderground.com/history/daily/cn/zhengzhou/ZHCC.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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
$1,237End Date
Aug 21, 2026Market Opened
Aug 20, 2026, 1:31 PM ETResolution Source
https://www.wunderground.com/history/daily/cn/zhengzhou/ZHCCResolver
0x69c47De9D...Forecast models from agencies including China's meteorological services point to an overnight low near 25°C in Zhengzhou on August 21, driven by high humidity, scattered thundershowers, and limited radiative cooling under partly cloudy skies amid the ongoing East Asian monsoon. Persistent warmth from recent days, with daytime highs around 31–32°C and minimal wind, reduces the typical nocturnal drop, while urban heat effects in the city further support readings at or above 24–25°C. Slight differences among ensemble runs—particularly in shower timing or cloud thickness—create the tight split between 25°C+ and 24°C outcomes, with lower probabilities for 22–23°C reflecting the low chance of clearer, calmer conditions that would enhance cooling. Updated short-range guidance expected later today will likely refine the exact minimum before 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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