Forecast models from sources including WeatherBug, Meteum, and PredictWind indicate a highest temperature near 24–26°C at Incheon International Airport on September 26, 2026, consistent with late-September climatology where average highs reach about 23°C amid seasonal cooling. Primary drivers include moderate easterly flow, partial cloud cover reducing solar heating, and light precipitation chances that limit afternoon warming. Recent model runs show minor disagreements on peak values due to varying representations of boundary-layer moisture and wind shear, with historical analogs supporting highs in this narrow band absent stronger southerly advection. Traders appear to price this genuine uncertainty, as new 48-hour forecast updates from agencies like the Korea Meteorological Administration could shift implied probabilities ahead of 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 Seoul (Incheon) on September 26?
23°C 37%
25°C 28%
26°C 28%
27°C 22%
21°C or below
1%
22°C
14%
23°C
37%
24°C
19%
25°C
28%
26°C
28%
27°C
22%
28°C
8%
29°C
2%
30°C
3%
31°C or higher
1%
23°C 37%
25°C 28%
26°C 28%
27°C 22%
21°C or below
1%
22°C
14%
23°C
37%
24°C
19%
25°C
28%
26°C
28%
27°C
22%
28°C
8%
29°C
2%
30°C
3%
31°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=rksi
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 24, 2026, 12:56 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=rksiResolver
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=rksi
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=rksiResolver
0x69c47de9d...Forecast models from sources including WeatherBug, Meteum, and PredictWind indicate a highest temperature near 24–26°C at Incheon International Airport on September 26, 2026, consistent with late-September climatology where average highs reach about 23°C amid seasonal cooling. Primary drivers include moderate easterly flow, partial cloud cover reducing solar heating, and light precipitation chances that limit afternoon warming. Recent model runs show minor disagreements on peak values due to varying representations of boundary-layer moisture and wind shear, with historical analogs supporting highs in this narrow band absent stronger southerly advection. Traders appear to price this genuine uncertainty, as new 48-hour forecast updates from agencies like the Korea Meteorological Administration could shift implied probabilities ahead of 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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