Recent northerly winds and a cooling air mass have driven trader focus toward an 18–19°C low for Zhengzhou on August 29, with market-implied odds clustered tightly around those levels. Official forecasts from sources including the Henan Meteorological Service indicate minimums near 20–22°C under partly cloudy skies, light winds of 2–4 m/s, and moderate humidity that limits radiative cooling. Subtle differences in overnight cloud cover, dew point depression, and local urban heat effects create the narrow spread between 18°C and 19°C outcomes. Updated model runs and final station observations will determine resolution amid typical late-August 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 August 29?
15°C or below 86%
17°C 82%
16°C 81%
18°C 9%
15°C or below
86%
16°C
81%
17°C
82%
18°C
9%
19°C
51%
20°C
1%
21°C
1%
22°C
1%
23°C
1%
24°C
1%
25°C or higher
1%
15°C or below 86%
17°C 82%
16°C 81%
18°C 9%
15°C or below
86%
16°C
81%
17°C
82%
18°C
9%
19°C
51%
20°C
1%
21°C
1%
22°C
1%
23°C
1%
24°C
1%
25°C or higher
1%
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.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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 28, 2026, 12:29 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 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.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=zhccResolver
0x69c47De9D...Recent northerly winds and a cooling air mass have driven trader focus toward an 18–19°C low for Zhengzhou on August 29, with market-implied odds clustered tightly around those levels. Official forecasts from sources including the Henan Meteorological Service indicate minimums near 20–22°C under partly cloudy skies, light winds of 2–4 m/s, and moderate humidity that limits radiative cooling. Subtle differences in overnight cloud cover, dew point depression, and local urban heat effects create the narrow spread between 18°C and 19°C outcomes. Updated model runs and final station observations will determine resolution amid typical late-August 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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