Recent official forecasts for Chengdu indicate mostly cloudy to overcast skies on September 20 with highs centered around 25–27°C, aligning with the closely matched market odds for those outcomes. Persistent Hua Xi Qiu Yu autumn rain patterns across the Sichuan Basin are suppressing daytime solar heating through extensive cloud cover and elevated humidity, while light northeasterly winds limit mixing and advection of warmer air. Basin topography further traps moisture, moderating maximum temperatures below late-summer norms. Model consensus shows minimal day-to-day variability in this setup, though any unexpected clearing could allow brief warming toward 28°C or higher. Updated runs from the China Meteorological Administration and refined local guidance expected in the next 24–48 hours will provide the clearest signal for final resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Chengdu on September 20?
Highest temperature in Chengdu on September 20?
26°C 26%
27°C 23%
25°C 22%
24°C 19%
NEW
NEW
Sep 20, 2026
22°C or below
4%
23°C
18%
24°C
19%
25°C
22%
26°C
26%
27°C
23%
28°C
16%
29°C
18%
30°C
13%
31°C
4%
32°C or higher
<1%
26°C 26%
27°C 23%
25°C 22%
24°C 19%
NEW
NEW
Sep 20, 2026
22°C or below
$76 Vol.
4%
23°C
$20 Vol.
18%
24°C
$5 Vol.
19%
25°C
$1 Vol.
22%
26°C
$10 Vol.
26%
27°C
$0 Vol.
23%
28°C
$0 Vol.
16%
29°C
$0 Vol.
18%
30°C
$0 Vol.
13%
31°C
$0 Vol.
4%
32°C or higher
$0 Vol.
<1%
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Chengdu Shuangliu International Airport Station in degrees Celsius on 20 Sep '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=zuuu
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 official forecasts for Chengdu indicate mostly cloudy to overcast skies on September 20 with highs centered around 25–27°C, aligning with the closely matched market odds for those outcomes. Persistent Hua Xi Qiu Yu autumn rain patterns across the Sichuan Basin are suppressing daytime solar heating through extensive cloud cover and elevated humidity, while light northeasterly winds limit mixing and advection of warmer air. Basin topography further traps moisture, moderating maximum temperatures below late-summer norms. Model consensus shows minimal day-to-day variability in this setup, though any unexpected clearing could allow brief warming toward 28°C or higher. Updated runs from the China Meteorological Administration and refined local guidance expected in the next 24–48 hours will provide the clearest signal for final resolution.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Chengdu Shuangliu International Airport Station in degrees Celsius on 20 Sep '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=zuuu
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 highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=zuuu
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 18, 2026, 12:57 AM ET
Volume
$112End Date
Sep 20, 2026Market Opened
Sep 18, 2026, 12:57 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=zuuuResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Chengdu Shuangliu International Airport Station in degrees Celsius on 20 Sep '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=zuuu
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 official forecasts for Chengdu indicate mostly cloudy to overcast skies on September 20 with highs centered around 25–27°C, aligning with the closely matched market odds for those outcomes. Persistent Hua Xi Qiu Yu autumn rain patterns across the Sichuan Basin are suppressing daytime solar heating through extensive cloud cover and elevated humidity, while light northeasterly winds limit mixing and advection of warmer air. Basin topography further traps moisture, moderating maximum temperatures below late-summer norms. Model consensus shows minimal day-to-day variability in this setup, though any unexpected clearing could allow brief warming toward 28°C or higher. Updated runs from the China Meteorological Administration and refined local guidance expected in the next 24–48 hours will provide the clearest signal for final resolution.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Chengdu Shuangliu International Airport Station in degrees Celsius on 20 Sep '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=zuuu
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 highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=zuuu
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
$112End Date
Sep 20, 2026Market Opened
Sep 18, 2026, 12:57 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=zuuuResolver
0x69c47De9D...Recent official forecasts for Chengdu indicate mostly cloudy to overcast skies on September 20 with highs centered around 25–27°C, aligning with the closely matched market odds for those outcomes. Persistent Hua Xi Qiu Yu autumn rain patterns across the Sichuan Basin are suppressing daytime solar heating through extensive cloud cover and elevated humidity, while light northeasterly winds limit mixing and advection of warmer air. Basin topography further traps moisture, moderating maximum temperatures below late-summer norms. Model consensus shows minimal day-to-day variability in this setup, though any unexpected clearing could allow brief warming toward 28°C or higher. Updated runs from the China Meteorological Administration and refined local guidance expected in the next 24–48 hours will provide the clearest signal for final 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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