**Current forecast consensus from numerical weather models points to a minimum temperature of 23–25°C in Shanghai on September 24, driven by persistent easterly to southeasterly flow under mostly cloudy skies with light winds and no significant cold-air advection.** Late-September climatology in the region features moderating highs near 29–30°C and overnight lows typically in the low-to-mid 20s as the monsoon influence wanes. Multiple model runs (including GFS and ECMWF guidance referenced in recent outlooks) show stable conditions with dew points supporting minima near 23°C, while limited diurnal cooling from cloud cover prevents deeper drops. This data distribution underpins the market’s heaviest weighting on 24°C (41.5%) and 23°C (27.5%), with traders incorporating model consensus and historical September variability into their assessments. Updated model runs and official Shanghai Meteorological Bureau guidance in the next 48 hours will provide the final resolution inputs.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Shanghai on September 24?
24°C 42%
23°C 28%
25°C 18%
22°C 12%
18°C or below
<1%
19°C
1%
20°C
1%
21°C
10%
22°C
9%
23°C
28%
24°C
42%
25°C
18%
26°C
6%
27°C
3%
28°C or higher
1%
24°C 42%
23°C 28%
25°C 18%
22°C 12%
18°C or below
<1%
19°C
1%
20°C
1%
21°C
10%
22°C
9%
23°C
28%
24°C
42%
25°C
18%
26°C
6%
27°C
3%
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=zspd
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 22, 2026, 12:30 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=zspdResolver
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=zspd
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=zspdResolver
0x69c47De9D...**Current forecast consensus from numerical weather models points to a minimum temperature of 23–25°C in Shanghai on September 24, driven by persistent easterly to southeasterly flow under mostly cloudy skies with light winds and no significant cold-air advection.** Late-September climatology in the region features moderating highs near 29–30°C and overnight lows typically in the low-to-mid 20s as the monsoon influence wanes. Multiple model runs (including GFS and ECMWF guidance referenced in recent outlooks) show stable conditions with dew points supporting minima near 23°C, while limited diurnal cooling from cloud cover prevents deeper drops. This data distribution underpins the market’s heaviest weighting on 24°C (41.5%) and 23°C (27.5%), with traders incorporating model consensus and historical September variability into their assessments. Updated model runs and official Shanghai Meteorological Bureau guidance in the next 48 hours will provide the final resolution inputs.
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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