Forecast models from sources including the China Meteorological Administration and international ensembles show Chongqing's overnight minimum on September 20 clustered near 21–22°C, driven by persistent cloud cover and light rain that limit radiative cooling under high humidity. These conditions, tied to a regional weather pattern with weak winds and elevated dew points around 20°C, keep the low from dropping further despite seasonal norms near 22°C. Minor differences in rain timing or cloud thickness across model runs create the tight spread between 20°C and 22°C outcomes, while probabilities below 19°C or above 23°C reflect low likelihood of significant clearing or stronger advection. Updated short-range guidance expected overnight will refine the exact threshold.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Chongqing on September 20?
19°C 98%
20°C 51%
21°C 51%
18°C or below 10%
18°C or below
10%
19°C
98%
20°C
51%
21°C
51%
22°C
50%
23°C
<1%
24°C
<1%
25°C
<1%
26°C
<1%
27°C
<1%
28°C or higher
<1%
19°C 98%
20°C 51%
21°C 51%
18°C or below 10%
18°C or below
10%
19°C
98%
20°C
51%
21°C
51%
22°C
50%
23°C
<1%
24°C
<1%
25°C
<1%
26°C
<1%
27°C
<1%
28°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=zuck
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, 12:30 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=zuckResolver
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=zuck
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.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=zuckResolver
0x69c47De9D...Forecast models from sources including the China Meteorological Administration and international ensembles show Chongqing's overnight minimum on September 20 clustered near 21–22°C, driven by persistent cloud cover and light rain that limit radiative cooling under high humidity. These conditions, tied to a regional weather pattern with weak winds and elevated dew points around 20°C, keep the low from dropping further despite seasonal norms near 22°C. Minor differences in rain timing or cloud thickness across model runs create the tight spread between 20°C and 22°C outcomes, while probabilities below 19°C or above 23°C reflect low likelihood of significant clearing or stronger advection. Updated short-range guidance expected overnight will refine the exact threshold.
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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