**Official forecasts from the China Meteorological Administration project a high of 29°C in Beijing on September 21 under sunny skies and light southerly winds.** Multiple global and regional models cluster around 28–30°C, reflecting stable high-pressure conditions with minimal cloud cover that maximizes daytime solar insolation and limited moisture for evaporative cooling. Light winds reduce mixing with cooler air masses, while typical early-autumn transitional patterns—waning monsoon influence and urban heat island effects—support peak temperatures near the upper end of historical September baselines. The tight market spread between 30°C (36.5%) and 31°C (35.5%) versus 29°C (16.5%) captures minor ensemble divergences in boundary-layer heating and any subtle model spread on exact insolation or wind timing, with resolution hinging on the final observed maximum from official stations. Updated model runs and CMA briefings in the next 48 hours will likely refine these probabilities.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-updateHighest temperature in Beijing on September 21?
31°C 37%
30°C 37%
29°C 16%
32°C 7%
24°C or below
<1%
25°C
<1%
26°C
1%
27°C
1%
28°C
5%
29°C
16%
30°C
37%
31°C
37%
32°C
7%
33°C
1%
34°C or higher
2%
31°C 37%
30°C 37%
29°C 16%
32°C 7%
24°C or below
<1%
25°C
<1%
26°C
1%
27°C
1%
28°C
5%
29°C
16%
30°C
37%
31°C
37%
32°C
7%
33°C
1%
34°C or higher
2%
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.
Binuksan ang Market: Sep 19, 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...**Official forecasts from the China Meteorological Administration project a high of 29°C in Beijing on September 21 under sunny skies and light southerly winds.** Multiple global and regional models cluster around 28–30°C, reflecting stable high-pressure conditions with minimal cloud cover that maximizes daytime solar insolation and limited moisture for evaporative cooling. Light winds reduce mixing with cooler air masses, while typical early-autumn transitional patterns—waning monsoon influence and urban heat island effects—support peak temperatures near the upper end of historical September baselines. The tight market spread between 30°C (36.5%) and 31°C (35.5%) versus 29°C (16.5%) captures minor ensemble divergences in boundary-layer heating and any subtle model spread on exact insolation or wind timing, with resolution hinging on the final observed maximum from official stations. Updated model runs and CMA briefings in the next 48 hours will likely refine these probabilities.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-update
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