Recent forecasts from multiple models, including GFS-based runs and agency outlooks, indicate a high near 29–30 °C for Beijing on September 13 under clear skies, light northwesterly winds, and very low humidity. High pressure and minimal cloud cover are expected to maximize daytime solar heating while dry air limits evaporative cooling, consistent with the current stable pattern following September 12 highs around 27–28 °C. Historical mid-September averages hover near 26–27 °C, but the lack of frontal systems or moisture supports the market-implied concentration around 30–31 °C. Updated model runs and official observations tomorrow morning will refine the final maximum before 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 Beijing on September 13?
31°C 54%
30°C 31%
32°C 13%
29°C 5%
24°C or below
<1%
25°C
<1%
26°C
<1%
27°C
<1%
28°C
2%
29°C
5%
30°C
31%
31°C
54%
32°C
13%
33°C
3%
34°C or higher
1%
31°C 54%
30°C 31%
32°C 13%
29°C 5%
24°C or below
<1%
25°C
<1%
26°C
<1%
27°C
<1%
28°C
2%
29°C
5%
30°C
31%
31°C
54%
32°C
13%
33°C
3%
34°C or higher
1%
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=zbaa
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 11, 2026, 12:57 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=zbaaResolver
0x69c47De9D...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=zbaa
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=zbaaResolver
0x69c47De9D...Recent forecasts from multiple models, including GFS-based runs and agency outlooks, indicate a high near 29–30 °C for Beijing on September 13 under clear skies, light northwesterly winds, and very low humidity. High pressure and minimal cloud cover are expected to maximize daytime solar heating while dry air limits evaporative cooling, consistent with the current stable pattern following September 12 highs around 27–28 °C. Historical mid-September averages hover near 26–27 °C, but the lack of frontal systems or moisture supports the market-implied concentration around 30–31 °C. Updated model runs and official observations tomorrow morning will refine the final maximum 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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